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Spring_2_filtered.py
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Spring_2_filtered.py
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import requests
import numpy as np
import scipy as sp
import sys
import platform
import pandas as pd
from time import time
from operator import itemgetter
from sklearn.cross_validation import StratifiedShuffleSplit, KFold
from sklearn.ensemble import RandomForestClassifier ,ExtraTreesClassifier,AdaBoostClassifier, BaggingClassifier
from sklearn.feature_extraction.text import TfidfVectorizer
from sklearn.feature_extraction import DictVectorizer
from sklearn.naive_bayes import *
import re
import random
import warnings
from math import sqrt, exp, log
from csv import DictReader
from sklearn.preprocessing import Imputer
from sklearn.metrics import log_loss
from sklearn.grid_search import GridSearchCV , RandomizedSearchCV, ParameterSampler
from sklearn.ensemble import RandomForestRegressor
from scipy.stats import randint as sp_randint
from sklearn import decomposition, pipeline, metrics
from sklearn.preprocessing import StandardScaler, PolynomialFeatures
from sklearn import preprocessing
from sklearn.utils import shuffle
from sklearn.metrics import roc_auc_score,roc_curve,auc
import collections
import ast
from sklearn.neighbors import KNeighborsRegressor,RadiusNeighborsRegressor
from sklearn.linear_model import LinearRegression, Ridge, Lasso, ElasticNet, SGDRegressor, LogisticRegression, \
Perceptron,RidgeCV, TheilSenRegressor
from datetime import date,timedelta as td,datetime as dt
import datetime
from sklearn.feature_selection import SelectKBest,SelectPercentile, f_classif, GenericUnivariateSelect
from sklearn.calibration import CalibratedClassifierCV
from sklearn.linear_model import LogisticRegression
from sklearn.svm import LinearSVC
from sklearn.decomposition import PCA, TruncatedSVD
from sklearn.lda import LDA
from sklearn.cluster import AgglomerativeClustering, FeatureAgglomeration
from collections import defaultdict
from sklearn.preprocessing import OneHotEncoder
#import xgboost as xgb
########################################################################################################################
#Springleaf Marketing Response
########################################################################################################################
#--------------------------------------------Algorithm : Random Forest :------------------------------------------------
#Random Forest :
#--------------------------------------------Algorithm : XGB------------------------------------------------------------
#XGB :
#--------------------------------------------Suggestions, Ideas---------------------------------------------------------
#Suggestions, Ideas
# Best score 6/10/2015:
#XGB : 0.782434654905
#RFC : 0.767411324977
#LOG : 0.760828849164
#--------------------------------------------with only 7K records-------------------------------------------------------
# RF : 0.7410 - 7414 (with 7k)
#With stratified fold
#RF: 0.7366 - 0.7370
########################################################################################################################
#Utility function to report best scores
########################################################################################################################
def report(grid_scores, n_top):
cols_key = []
top_scores = sorted(grid_scores, key=itemgetter(1), reverse=True)[:n_top]
for i, score in enumerate(top_scores):
if( i < 5):
print("Model with rank: {0}".format(i + 1))
print("Mean validation score: {0:.3f} (std: {1:.3f})".format(
score.mean_validation_score,
np.std(score.cv_validation_scores)))
print("Parameters: {0}".format(score.parameters))
print("")
dict1 = collections.OrderedDict(sorted(score.parameters.items()))
if i==0:
for key in dict1.keys():
cols_key.append(key)
Parms_DF = pd.DataFrame(columns=cols_key)
cols_val = []
for key in dict1.keys():
cols_val.append(dict1[key])
Parms_DF.loc[i] = cols_val
return Parms_DF
########################################################################################################################
#Cross Validation and model fitting
########################################################################################################################
def Nfold_Cross_Valid(X, y, clf):
print("***************Starting Kfold Cross validation***************")
X =np.array(X)
scores=[]
ss = StratifiedShuffleSplit(y, n_iter=5,test_size=0.2, random_state=21, indices=None)
#ss = KFold(len(y), n_folds=5,shuffle=False,indices=None)
i = 1
for trainCV, testCV in ss:
X_train, X_test= X[trainCV], X[testCV]
y_train, y_test= y[trainCV], y[testCV]
clf.fit(X_train, y_train)
y_pred=clf.predict_proba(X_test)[:,1]
scores.append(roc_auc_score(y_test,y_pred))
print(" %d-iteration... %s " % (i,scores))
i = i + 1
#Average ROC from cross validation
scores=np.array(scores)
print ("Normal CV Score:",np.mean(scores))
print("***************Ending Kfold Cross validation***************")
return scores
########################################################################################################################
#Data cleansing , feature scalinng , splitting
########################################################################################################################
def Data_Munging(Train_DS,Actual_DS, Filter_DS):
print("***************Starting Data cleansing***************")
global Train_DS1
print(np.shape(Train_DS))
Train_DS = Train_DS.dropna(axis=1, thresh=100)
Actual_DS = Actual_DS.dropna(axis=1, thresh=100)
print(np.shape(Train_DS))
y = Train_DS.target.values
Train_DS = Train_DS.drop(['target','ID','VAR_0044'], axis = 1)
Actual_DS = Actual_DS.drop(['ID','VAR_0044'], axis = 1)
####################################################################################################################
#Get column unique count
columns = Train_DS.columns
col_types = (Train_DS.dtypes).reset_index(drop=True)
#Delete object columns with only one Unique values (numeric unique already removed)
unique_cols = []
for j in range(Train_DS.shape[1]):
#if col_types[j] =='object':
if (len(Train_DS[columns[j]].value_counts(dropna=True))) <= 1:
#for testing purpose only
if (columns[j])!='VAR_0214':
unique_cols.append(columns[j])
Train_DS = Train_DS.drop(unique_cols, axis = 1)
Actual_DS = Actual_DS.drop(unique_cols, axis = 1)
print("Unique columns deleted")
####################################################################################################################
# Get numeric feature after removing duplicates
print("Starting Numeric conversion....")
#Take all Numeric values
columns = Train_DS.columns
col_types = (Train_DS.dtypes).reset_index(drop=True)
cols_type = pd.DataFrame()
cols_type['name'] = columns
cols_type['type'] = col_types
cols_obj = list(cols_type['name'][(cols_type['type'] == 'int64') | (cols_type['type'] == 'float64')])
#-------------------------------------------------------------------------------------------------------------------
#Take only numeric with best range after clustering
#cols_grp = list(Filter_DS['feature'])
#cols_grp = list(set(cols_obj).intersection(cols_grp))
#-------------------------------------------------------------------------------------------------------------------
Train_DS_New = Train_DS[cols_obj]
Actual_DS_New = Actual_DS[cols_obj]
#Deafult all -ve values to -1
Train_DS_New[Train_DS_New < 0 ] = -10
Actual_DS_New[Actual_DS_New < 0 ] = -10
Train_DS_New = Train_DS_New.fillna(-999)
Actual_DS_New = Actual_DS_New.fillna(-999)
# cols_new = Train_DS_New.columns
# imp = Imputer(missing_values='NaN', strategy='mean', axis=0,copy=False)
# Train_DS_New = pd.DataFrame(imp.fit_transform(Train_DS_New), columns=cols_new)
# Actual_DS_New = pd.DataFrame(imp.fit_transform(Actual_DS_New), columns=cols_new)
#-------------------------------------------------------------------------------------------------------------------
# Devectorize / one hot encoding fro numeric cols
# New_DS = pd.concat([Train_DS_New, Actual_DS_New])
# cat_cols = list(Filter_DS[(Filter_DS['Min']==0) & (Filter_DS['Max']==99) & (Filter_DS['Uniq'] <= 15)]['feature'])
#
# for column in cat_cols:
# dummies = pd.get_dummies(New_DS[column])
# cols_new = [ column+"_"+str(s) for s in list(dummies.columns)]
# New_DS[cols_new] = dummies
#
# #New_DS = New_DS.drop(cat_cols, axis = 1)
# Train_DS_New = New_DS.head(len(Train_DS_New))
# Actual_DS_New = New_DS.tail(len(Actual_DS_New))
#-------------------------------------------------------------------------------------------------------------------
#Get the count of hig cardinality categorical numerical features and apply it as feature
# New_DS = pd.concat([Train_DS_New, Actual_DS_New])
# Train_DS_New = Train_DS_New.reset_index()
# Actual_DS_New = Actual_DS_New.reset_index()
# #
# Factors = list(Filter_DS[(Filter_DS['Min']==0) & (Filter_DS['Max']==99) & (Filter_DS['Uniq'] <= 15)]['feature'])
#
# for feature in Factors:
# Feature_count = New_DS[feature].value_counts().reset_index()
# Feature_count.columns = [feature,feature+'_count']
#
# #Merge with Train and Test
# Train_DS_New = Train_DS_New.merge(Feature_count, on=feature, how='left')
# Actual_DS_New = Actual_DS_New.merge(Feature_count, on=feature, how='left')
#
# #Maintain the order after merge
# Train_DS_New = Train_DS_New.sort(['index'], ascending=[True]).reset_index(drop=True).drop(['index'], axis=1)
# Actual_DS_New = Actual_DS_New.sort(['index'], ascending=[True]).reset_index(drop=True).drop(['index'], axis=1)
#-------------------------------------------------------------------------------------------------------------------
# Try to get mean of target score using "leave one out" encoding of numerical categorical vars
# Train_DS_New['target'] = y
# Train_DS_New = Train_DS_New.reset_index()
# Actual_DS_New = Actual_DS_New.reset_index()
#
# Factors = list(Filter_DS[(Filter_DS['Min']==0) & (Filter_DS['Max']==99) & (Filter_DS['Uniq'] <= 15)]['feature'])
# #Factors = ['VAR_0647']
#
# for feature in Factors:
# Feature_mean = Train_DS_New.groupby([feature]).agg({'target': ['sum', 'count']}).reset_index()
# Feature_mean.columns = [feature,feature+'_sum',feature+'_count']
# Train_DS_New = Train_DS_New.merge(Feature_mean, on=feature, how='left')
#
# # excluding the value of current record and taking mean
# Train_DS_New[feature+'_mean'] = (Train_DS_New[feature+'_sum'] - Train_DS_New['target'])/(Train_DS_New[feature+'_count']- 1)
# Train_DS_New = Train_DS_New.drop([feature+'_sum',feature+'_count'], axis = 1).replace([np.inf, -np.inf], np.nan).fillna(0)
#
# Actual_DS_New = Actual_DS_New.merge(Feature_mean, on=feature, how='left')
# Actual_DS_New[feature+'_mean'] = (Actual_DS_New[feature+'_sum'])/(Actual_DS_New[feature+'_count'])
# Actual_DS_New = Actual_DS_New.drop([feature+'_sum',feature+'_count'], axis = 1).replace([np.inf, -np.inf], np.nan).fillna(0)
#
# Train_DS_New = Train_DS_New.sort(['index'], ascending=[True]).reset_index(drop=True).drop(['index'], axis=1)
# Actual_DS_New = Actual_DS_New.sort(['index'], ascending=[True]).reset_index(drop=True).drop(['index'], axis=1)
#
# Train_DS_New = Train_DS_New.drop(['target'], axis = 1)
#Delete only for testing purpose
#Train_DS_New = Train_DS_New.drop(Factors, axis = 1)
#Actual_DS_New = Actual_DS_New.drop(Factors, axis = 1)
#-------------------------------------------------------------------------------------------------------------------
# Try imputing 99, 999, 999999.... values
# imp_val_list = [9999,99999,999999,9999999,999999999,9998]
# for imp_val in imp_val_list:
# imp_cols = Filter_DS[Filter_DS['Max']==imp_val]['feature']
#
# for i in range(10):
# Train_DS_New[imp_cols] = Train_DS_New[imp_cols].replace(to_replace=(imp_val-i), value='NaN')
#
# imp = Imputer(missing_values='NaN', strategy='most_frequent', axis=0,copy=False)
# Train_DS_New[imp_cols] = imp.fit_transform(Train_DS_New[imp_cols])
#-------------------------------------------------------------------------------------------------------------------
# Try replacing 99, 999, 999999.... values with -999 ( a common value)
imp_val_list = [ 9999,99999,999999,9999999,999999999,9998]
#best now
imp_val_list = [99999,999999,9999999,999999999]
#imp_val_list = [999999,9999999,99999999,999999999,999998,9999998,99999998,999999998,999997,9999997,99999997,999999997]
for imp_val in imp_val_list:
imp_cols = Filter_DS[Filter_DS['Max']==imp_val]['feature']
for i in range(2):
Train_DS_New[imp_cols] = Train_DS_New[imp_cols].replace(to_replace=(imp_val-i), value=-999)
Actual_DS_New[imp_cols] = Actual_DS_New[imp_cols].replace(to_replace=(imp_val-i), value=-999)
#-------------------------------------------------------------------------------------------------------------------
Train_DS_New['VAR_0212'] = Train_DS_New['VAR_0212'] / 100000
Actual_DS_New['VAR_0212'] = Actual_DS_New['VAR_0212'] / 100000
#-------------------------------------------------------------------------------------------------------------------
#Try binning the numeric data
# Max_groups = Filter_DS['Uniq']
# bin_value = 10
#
# row_iterator = Filter_DS.iterrows()
#
# for i, row in row_iterator:
#
# if Filter_DS.loc[i, 'Uniq'] > 999:
# data = np.array(Train_DS_New[str(Filter_DS.loc[i, 'feature'])])
#
# #bins = np.linspace(data.min(), data.max(), bin_value)
# bins = np.linspace(0, 999999999, bin_value)
#
# print(bins)
# sys.exit(0)
# digitized = np.digitize(data, bins)
# bin_means = [data[digitized == i].size for i in range(1, len(bins))]
#
# print(digitized)
# print(pd.DataFrame(bin_means))
#
# sys.exit(0)
#
# data = np.random.random(100)
# bins = np.linspace(0, 1, 10)
# digitized = np.digitize(data, bins)
# bin_means = [data[digitized == i].mean() for i in range(1, len(bins))]
#
# print(bins)
# print(data)
# print(digitized)
# sys.exit(0)
#-------------------------------------------------------------------------------------------------------------------
# Trying to take the avg of each cluster values
# Max_groups = Filter_DS['cluster'].max()
#
# for i in range(Max_groups+1):
# clust = list(Filter_DS[Filter_DS['cluster'] == i ] ['feature'])
# clust = list(set(cols_obj).intersection(clust))
#
# if len(clust) > 0:
# Train_DS_New[str(i)+'_clust_avg'] = Train_DS_New[clust].mean(axis=1)
# Actual_DS_New[str(i)+'_clust_avg'] = Actual_DS_New[clust].mean(axis=1)
#
# Train_DS_New = Train_DS_New.drop(cols_grp, axis = 1)
# Actual_DS_New = Actual_DS_New.drop(cols_grp, axis = 1)
print("Ending Numeric conversion....")
print(np.shape(Train_DS_New))
print(np.shape(Actual_DS_New))
####################################################################################################################
# Verify the non-numeric lists
columns = Train_DS.columns
col_types = (Train_DS.dtypes).reset_index(drop=True)
cols_type = pd.DataFrame()
cols_type['name'] = columns
cols_type['type'] = col_types
cols_obj = list(cols_type['name'][cols_type['type'] == 'object'])
cols_boolean = ['VAR_0008','VAR_0009','VAR_0010','VAR_0011','VAR_0012','VAR_0043','VAR_0196','VAR_0226','VAR_0229','VAR_0230','VAR_0232','VAR_0236','VAR_0239']
cols_date = ['VAR_0073', 'VAR_0075', 'VAR_0156', 'VAR_0157', 'VAR_0158', 'VAR_0159', 'VAR_0166', 'VAR_0167', 'VAR_0168','VAR_0169', 'VAR_0176', 'VAR_0177', 'VAR_0178', 'VAR_0179', 'VAR_0204', 'VAR_0217']
cols_cat = ['VAR_0001','VAR_0005','VAR_0216','VAR_0222','VAR_0237','VAR_0274','VAR_0283','VAR_0305','VAR_0325','VAR_0342','VAR_0352','VAR_0353','VAR_0354','VAR_0466']
cols_others = ['VAR_0200','VAR_0214','VAR_0404','VAR_0467','VAR_0493','VAR_1934']
cols_boolean = sorted(list(set(cols_obj).intersection(cols_boolean)))
cols_cat = sorted(list(set(cols_obj).intersection(cols_cat)))
####################################################################################################################
#For the date fields in Train and Actual
print("Starting Date conversion....")
monthDict={'JAN':'01', 'FEB':'02', 'MAR':'03', 'APR':'04', 'MAY':'05', 'JUN':'06', 'JUL':'07', 'AUG':'08', 'SEP':'09', 'OCT':'10', 'NOV':'11', 'DEC':'12'}
#clean up all date fields, extract DD,MMM,YYYY and combine to a single date for further use
for datecol in cols_date:
Train_DS[datecol+'_DD'] = Train_DS[datecol].str[:2].fillna(1).astype(int)
Train_DS[datecol+'_MM'] = Train_DS[datecol].str[2:5].replace(monthDict).fillna(1).astype(int)
Train_DS[datecol+'_YY'] = Train_DS[datecol].str[5:7].fillna(1).astype(int).apply(lambda x: x+2000)
Train_DS_New[datecol] = pd.to_datetime(Train_DS[datecol+'_YY']*10000+Train_DS[datecol+'_MM']*100+Train_DS[datecol+'_DD'],format='%Y%m%d')
temp = pd.DatetimeIndex(Train_DS_New[datecol])
Train_DS_New[datecol+'_MM'] = temp.month
Train_DS_New[datecol+'_DW'] = temp.dayofweek
Actual_DS[datecol+'_DD'] = Actual_DS[datecol].str[:2].fillna(1).astype(int)
Actual_DS[datecol+'_MM'] = Actual_DS[datecol].str[2:5].replace(monthDict).fillna(1).astype(int)
Actual_DS[datecol+'_YY'] = Actual_DS[datecol].str[5:7].fillna(1).astype(int).apply(lambda x: x+2000)
Actual_DS_New[datecol] = pd.to_datetime(Actual_DS[datecol+'_YY']*10000+Actual_DS[datecol+'_MM']*100+Actual_DS[datecol+'_DD'],format='%Y%m%d')
temp = pd.DatetimeIndex(Actual_DS_New[datecol])
Actual_DS_New[datecol+'_MM'] = temp.month
Actual_DS_New[datecol+'_DW'] = temp.dayofweek
# Get Date Differences
for index , datecol in enumerate(cols_date):
j = index + 1
for i in range(j , len(cols_date)):
newcol = cols_date[index]+"_"+cols_date[i]
Train_DS_New[newcol] = (Train_DS_New[cols_date[index]] - Train_DS_New[cols_date[i]]).astype('timedelta64[D]')
Actual_DS_New[newcol] = (Actual_DS_New[cols_date[index]] - Actual_DS_New[cols_date[i]]).astype('timedelta64[D]')
Train_DS_New = Train_DS_New.drop(cols_date, axis = 1)
Actual_DS_New = Actual_DS_New.drop(cols_date, axis = 1)
print("Ending Date conversion....")
print(np.shape(Train_DS_New))
print(np.shape(Actual_DS_New))
####################################################################################################################
#Inspect Boolean data and apply conversion
print("Starting Boolean conversion....")
Train_DS_New[cols_boolean] = Train_DS[cols_boolean].fillna(False)
Actual_DS_New[cols_boolean] = Actual_DS[cols_boolean].fillna(False)
#print(Train_DS_New.ix[:,'VAR_0226':])
print("Ending Boolean conversion....")
print(np.shape(Train_DS_New))
print(np.shape(Actual_DS_New))
####################################################################################################################
#Inspect Categorical elements and apply conversion
print("Starting Categorical conversion....")
Train_DS_New[cols_cat] = Train_DS[cols_cat].fillna('00')
Actual_DS_New[cols_cat] = Actual_DS[cols_cat].fillna('00')
#-------------------------------------------------------------------------------------------------------------------
#looks like VAR_0274 is state code , but not matching with VAR_0237 (correct as per zipcode-VAR_0241)
Train_DS_New = Train_DS_New.drop(['VAR_0274'], axis = 1)
Actual_DS_New = Actual_DS_New.drop(['VAR_0274'], axis = 1)
#-------------------------------------------------------------------------------------------------------------------
#looks like VAR_0283 , VAR_0305 and VAR_0325 are showing similar values. So lets get encoding with same value
cols_temp = ['VAR_0283','VAR_0305','VAR_0325']
Train_DS_test_key = np.unique(list(np.unique(Train_DS_New[cols_temp].values))+list(np.unique(Actual_DS_New[cols_temp].values)))
Train_DS_test_val = list(range(0,len(Train_DS_test_key)))
dictionary = dict(zip(Train_DS_test_key,Train_DS_test_val))
Train_DS_New[cols_temp] = Train_DS_New[cols_temp].replace(dictionary)
Actual_DS_New[cols_temp] = Actual_DS_New[cols_temp].replace(dictionary)
#-------------------------------------------------------------------------------------------------------------------
#looks like VAR_0352 , VAR_0353 and VAR_0354 are showing similar values. So lets get encoding with same value
cols_temp = ['VAR_0352','VAR_0353','VAR_0354']
Train_DS_test_key = np.unique(list(np.unique(Train_DS_New[cols_temp].values))+list(np.unique(Actual_DS_New[cols_temp].values)))
Train_DS_test_val = list(range(0,len(Train_DS_test_key)))
dictionary = dict(zip(Train_DS_test_key,Train_DS_test_val))
Train_DS_New[cols_temp] = Train_DS_New[cols_temp].replace(dictionary)
Actual_DS_New[cols_temp] = Actual_DS_New[cols_temp].replace(dictionary)
#-------------------------------------------------------------------------------------------------------------------
# Devectorize / one hot encoding 'VAR_0001','VAR_0005' columns
for column in ['VAR_0001','VAR_0005']:
dummies = pd.get_dummies(Train_DS_New[column])
Train_DS_New[dummies.columns] = dummies
dummies = pd.get_dummies(Actual_DS_New[column])
Actual_DS_New[dummies.columns] = dummies
Train_DS_New = Train_DS_New.drop(['VAR_0001','VAR_0005'], axis = 1)
Actual_DS_New = Actual_DS_New.drop(['VAR_0001','VAR_0005'], axis = 1)
#-------------------------------------------------------------------------------------------------------------------
#'VAR_0342' has 2 char values. May be splitting 1st and 2nd char and keeping them sep work???
Train_DS_New['VAR_0342'] = Train_DS_New['VAR_0342'].replace(to_replace='-1', value='01')
Train_DS_New['VAR_0342_1'] = Train_DS_New['VAR_0342'].str[:1]
Train_DS_New['VAR_0342_2'] = Train_DS_New['VAR_0342'].str[1:2]
Actual_DS_New['VAR_0342'] = Actual_DS_New['VAR_0342'].replace(to_replace='-1', value='01')
Actual_DS_New['VAR_0342_1'] = Actual_DS_New['VAR_0342'].str[:1]
Actual_DS_New['VAR_0342_2'] = Actual_DS_New['VAR_0342'].str[1:2]
#-------------------------------------------------------------------------------------------------------------------
#All remaining must be label encoded
label_enc_cols = ['VAR_0237', 'VAR_0342','VAR_0342_1','VAR_0342_2', 'VAR_0466']
for i in range(len(label_enc_cols)):
lbl = preprocessing.LabelEncoder()
lbl.fit((list(Train_DS_New[label_enc_cols[i]].astype(str)) + list(Actual_DS_New[label_enc_cols[i]].astype(str))))
Train_DS_New[label_enc_cols[i]] = lbl.transform(Train_DS_New[label_enc_cols[i]].astype(str))
Actual_DS_New[label_enc_cols[i]] = lbl.transform(Actual_DS_New[label_enc_cols[i]].astype(str))
print("Ending Categorical conversion....")
print(np.shape(Train_DS_New))
print(np.shape(Actual_DS_New))
####################################################################################################################
print("Starting Misc Variable conversion....")
Train_DS_New[cols_others] = Train_DS[cols_others].fillna('00')
Actual_DS_New[cols_others] = Actual_DS[cols_others].fillna('00')
#-------------------------------------------------------------------------------------------------------------------
#looks like VAR_0200 is city description, this will anyway be captured in state code and Zip codes. So delete it
Train_DS_New = Train_DS_New.drop(['VAR_0200'], axis = 1)
Actual_DS_New = Actual_DS_New.drop(['VAR_0200'], axis = 1)
#-------------------------------------------------------------------------------------------------------------------
#VAR_0404 is the profession / designation . May be this requires more cleaning
#*******************************************************************************************************************
#-------------------------------------------------------------------------------------------------------------------
#VAR_0467 , Diff types of Discharges , make everything same
Train_DS_New['VAR_0467'] = Train_DS_New['VAR_0467'].replace(to_replace='Discharge NA', value='Discharged')
Actual_DS_New['VAR_0467'] = Actual_DS_New['VAR_0467'].replace(to_replace='Discharge NA', value='Discharged')
#-------------------------------------------------------------------------------------------------------------------
#VAR_0493 is the profession / designation . May be this requires more cleaning
#*******************************************************************************************************************
#-------------------------------------------------------------------------------------------------------------------
# VAR_1934 - only 5 values - Devectorize / one hot encoding
for column in ['VAR_1934']:
dummies = pd.get_dummies(Train_DS_New[column])
Train_DS_New[dummies.columns] = dummies
dummies = pd.get_dummies(Actual_DS_New[column])
Actual_DS_New[dummies.columns] = dummies
Train_DS_New = Train_DS_New.drop(['VAR_1934'], axis = 1)
Actual_DS_New = Actual_DS_New.drop(['VAR_1934'], axis = 1)
#-------------------------------------------------------------------------------------------------------------------
#All remaining must be label encoded
label_enc_cols = ['VAR_0214','VAR_0404','VAR_0467','VAR_0493']
for i in range(len(label_enc_cols)):
lbl = preprocessing.LabelEncoder()
lbl.fit((list(Train_DS_New[label_enc_cols[i]].astype(str)) + list(Actual_DS_New[label_enc_cols[i]].astype(str))))
Train_DS_New[label_enc_cols[i]] = lbl.transform(Train_DS_New[label_enc_cols[i]].astype(str))
Actual_DS_New[label_enc_cols[i]] = lbl.transform(Actual_DS_New[label_enc_cols[i]].astype(str))
print("Ending Misc Variable conversion....")
####################################################################################################################
print(np.shape(Train_DS_New))
print(np.shape(Actual_DS_New))
####################################################################################################################
#Any Additional Data cleansing before label encoding
# Get the attribute frequency count , then sum it up and add it as a new column
# New_DS = pd.concat([Train_DS, Actual_DS])
#
# Train_DS_T = Train_DS
# Actual_DS_T = Actual_DS
#
# for i in range(Train_DS.shape[1]):
# print(i)
# cols = columns[i]
# Feature_count = (New_DS[cols].value_counts()/ New_DS.shape[0]).reset_index()
# Feature_count.columns = [cols, cols+'_new']
# Train_DS = Train_DS.merge(Feature_count, on=cols)
# Actual_DS = Actual_DS.merge(Feature_count, on=cols)
#
# Train_DS = Train_DS.drop(columns, axis = 1)
# Actual_DS = Actual_DS.drop(columns, axis = 1)
####################################################################################################################
#Train_DS['sum'] = Train_DS_T.sum(axis=1)
#Actual_DS['sum'] = Actual_DS_T.sum(axis=1)
# print(Feature_count)
# print(Train_DS[cols].head())
# print(Train_DS[cols+'_new'].head())
#print(Train_DS['VAR_0001'])
####################################################################################################################
#Feature selection
# selector = GenericUnivariateSelect(score_func=f_classif, mode = 'percentile', param=90)
# selector.fit(Train_DS, y)
# Train_DS = selector.transform(Train_DS)
# Actual_DS = selector.transform(Actual_DS)
#
# print(np.shape(Train_DS))
# print(np.shape(Actual_DS))
#pd.DataFrame(Actual_DS).to_csv(file_path+'Actual_DS_Temp2.csv')
#Feature Selection using wrapper method (l1 regularization)
# clf = LinearSVC(C=0.001, penalty="l1", dual=False)
# #clf = LogisticRegression(C=0.001, penalty="l1", dual=False)
# clf.fit(Train_DS, y)
# Train_DS_New = clf.transform(Train_DS)
# Actual_DS_New = clf.transform(Actual_DS)
# imp = Imputer(missing_values='NaN', strategy='mean', axis=0,copy=False)
# Train_DS_New = imp.fit_transform(Train_DS_New)
# Actual_DS_New = imp.fit_transform(Actual_DS_New)
#Delete features with 0 importance value using random forest check
# Train_DS1 = Train_DS_New
# Irrelevant_feat = list(Featimp_DS[Featimp_DS['imp'] <= 0 ]['col'])
# Irrelevant_feat = ['VAR_0195','VAR_0194','VAR_0193','VAR_0192','VAR_0214','VAR_0191','VAR_0181','VAR_0098','VAR_0139','VAR_0130','VAR_1012','VAR_0114']
# Train_DS_New = Train_DS_New.drop(Irrelevant_feat, axis = 1)
# Actual_DS_New = Actual_DS_New.drop(Irrelevant_feat, axis = 1)
####################################################################################################################
#Shuffle the Dataset
Train_DS_New, y = shuffle(Train_DS_New, y, random_state=21)
# #Setting Standard scaler for data
stdScaler = StandardScaler(with_mean=True, with_std=True)
stdScaler.fit(Train_DS_New,y)
Train_DS_New = stdScaler.transform(Train_DS_New)
Actual_DS_New = stdScaler.transform(Actual_DS_New)
#apply PCA
# print("PCA = 2030")
# #pca = PCA(n_components=2030, whiten=True)
# pca = TruncatedSVD(n_components=2000,algorithm='arpack')
# pca.fit(Train_DS,y)
# Train_DS = pca.transform(Train_DS)
# Actual_DS = pca.transform(Actual_DS)
# print(pca.components_)
# print("LDA = 2030")
# lda = LDA(n_components=100)
# lda.fit(Train_DS,y)
# Train_DS = lda.transform(Train_DS)
# Actual_DS = lda.transform(Actual_DS)
print(np.shape(Train_DS_New))
print(np.shape(Actual_DS_New))
print("***************Ending Data cleansing***************")
return Train_DS_New, Actual_DS_New, y
########################################################################################################################
#Random Forest Classifier (around 80%)
########################################################################################################################
def RFC_Classifier(Train_DS, y, Actual_DS, Sample_DS, Grid):
print("***************Starting Random Forest Classifier***************")
t0 = time()
if Grid:
#used for checking the best performance for the model using hyper parameters
print("Starting model fit with Grid Search")
# specify parameters and distributions to sample from
param_dist = {
"criterion":['gini', 'entropy'],
"max_depth": [1, 2, 3, 4, 5,6,7,8,9,10,11,12,13,14,15, None],
"max_features": [1, 2, 3, 4, 5,6,7,8,9,10,11,12,13,14,15, None,'auto','log2'],
"min_samples_split": sp_randint(1, 50),
"min_samples_leaf": sp_randint(1, 50),
"bootstrap": [True],
"oob_score": [True, False]
}
clf = RandomForestClassifier(n_estimators=100,n_jobs=-1)
# run randomized search
n_iter_search = 3000
clf = RandomizedSearchCV(clf, param_distributions=param_dist,
n_iter=n_iter_search, scoring = 'roc_auc',cv=5)
start = time()
clf.fit(Train_DS, y)
print("RandomizedSearchCV took %.2f seconds for %d candidates"
" parameter settings." % ((time() - start), n_iter_search))
report(clf.grid_scores_)
print("Best estimator found by grid search:")
print(clf.best_estimator_)
else:
#
clf = RandomForestClassifier(n_jobs=-1, n_estimators=100, min_samples_split=1,max_features='auto',bootstrap=True,
max_depth = 8, min_samples_leaf = 4,oob_score=True,criterion='entropy')
clf = RandomForestClassifier(n_jobs=-1, n_estimators=500)
Nfold_score = Nfold_Cross_Valid(Train_DS, y, clf)
sys.exit(0)
#clf = RandomForestClassifier(n_jobs=-1, n_estimators=2000)
#clf = CalibratedClassifierCV(base_estimator=clf, method='sigmoid')
clf.fit(Train_DS, y)
#
feature = pd.DataFrame()
feature['imp'] = clf.feature_importances_
feature['col'] = Train_DS1.columns
feature = feature.sort(['imp'], ascending=False).reset_index(drop=True)
print(feature)
pd.DataFrame(feature).to_csv(file_path+'feature_imp.csv')
sys.exit(0)
#Predict actual model
pred_Actual = clf.predict_proba(Actual_DS)[:,1]
print("Actual Model predicted")
#Get the predictions for actual data set
preds = pd.DataFrame(pred_Actual, index=Sample_DS.ID.values, columns=Sample_DS.columns[1:])
preds.to_csv(file_path+'output/Submission_Roshan_RFC_filter_2.csv', index_label='ID')
print("***************Ending Random Forest Classifier***************")
return pred_Actual
########################################################################################################################
#XGB_Classifier
########################################################################################################################
def XGB_Classifier(Train_DS, y, Actual_DS, Sample_DS, Grid):
print("***************Starting XGB Classifier***************")
t0 = time()
if Grid:
#used for checking the best performance for the model using hyper parameters
print("Starting model fit with Grid Search")
param_grid = {'n_estimators': [100],
'max_depth': [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15],
'min_child_weight': [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15],
'subsample': [0.1,0.2,0.3,0.4,0.5,0.6, 0.7,0.8, 0.9,1],
'colsample_bytree': [0.1,0.2,0.3,0.4,0.5,0.6, 0.7,0.8, 0.9,1],
'silent':[True],
'gamma':[2,1,0.1,0.2,0.3,0.4,0.5,0.6, 0.7,0.8, 0.9]
}
# clf = GridSearchCV(xgb.XGBClassifier(),param_grid, scoring='roc_auc',
# verbose=1,cv=10)
#run randomized search
n_iter_search = 3000
clf = xgb.XGBClassifier(nthread=-1)
clf = RandomizedSearchCV(clf, param_distributions=param_grid,
n_iter=n_iter_search, scoring = 'roc_auc',cv=10)
start = time()
clf.fit(Train_DS, y)
print("GridSearchCV completed")
report(clf.grid_scores_)
print("Best estimator found by grid search:")
print(clf.best_estimator_)
else:
#Best on grid :::: CV:
# clf = xgb.XGBClassifier(n_estimators=500,max_depth=4,learning_rate=0.1,nthread=2,min_child_weight=11,
# subsample=0.8,colsample_bytree=0.7,silent=True, gamma = 0.6)
#from Kaggle
clf = xgb.XGBClassifier(n_estimators=500,max_depth=9,learning_rate=0.01,nthread=2,min_child_weight=6,
subsample=0.7,colsample_bytree=0.5,silent=True, gamma = 4)
Nfold_score = Nfold_Cross_Valid(Train_DS, y, clf)
# clf = xgb.XGBClassifier(n_estimators=2000,max_depth=4,learning_rate=0.1,nthread=2,min_child_weight=11,
# subsample=0.8,colsample_bytree=0.7,silent=True, gamma = 0.6)
#from Kaggle (https://www.kaggle.com/c/springleaf-marketing-response/forums/t/16808/time-window-variables-features)
#clf = xgb.XGBClassifier(n_estimators=2000,max_depth=10,learning_rate=0.005,nthread=2,min_child_weight=11,
# subsample=0.8,colsample_bytree=0.4,silent=True, gamma = 0.6)
#from Kaggle
clf = xgb.XGBClassifier(n_estimators=2000,max_depth=9,learning_rate=0.01,nthread=2,min_child_weight=6,
subsample=0.7,colsample_bytree=0.5,silent=True, gamma = 4)
clf = CalibratedClassifierCV(base_estimator=clf, method='sigmoid')
clf.fit(Train_DS, y)
#Predict actual model
pred_Actual = clf.predict_proba(Actual_DS)[:,1]
print("Actual Model predicted")
#Get the predictions for actual data set
preds = pd.DataFrame(pred_Actual, index=Sample_DS.ID.values, columns=Sample_DS.columns[1:])
preds.to_csv(file_path+'output/Submission_Roshan_xgb_filter_2.csv', index_label='ID')
print("***************Ending XGB Classifier***************")
return pred_Actual
########################################################################################################################
#Misc Classifier
########################################################################################################################
def Misc_Classifier(Train_DS, y, Actual_DS, Sample_DS, Grid):
print("***************Starting Misc Classifier***************")
t0 = time()
if Grid:
#used for checking the best performance for the model using hyper parameters
print("Starting model fit with Grid Search")
else:
#CV - 0.666186155556
#CV - 0.6670 - remove date MM/DD/YY and todays difff
clf = LogisticRegression()
#print("Adaboost")
#CV: 0.7099
#clf = AdaBoostClassifier(n_estimators=100)
# print("BaggingClassifier")
# #CV:
# clf = BaggingClassifier(n_estimators=100)
# Nfold_score = Nfold_Cross_Valid(Train_DS, y, clf)
#
print("ExtraTreesClassifier")
#CV:0.7247
clf = ExtraTreesClassifier(n_estimators=100)
Nfold_score = Nfold_Cross_Valid(Train_DS, y, clf)
print("MultinomialNB")
#CV:
clf = MultinomialNB()
Nfold_score = Nfold_Cross_Valid(Train_DS, y, clf)
print("BernoulliNB")
#CV:
clf = BernoulliNB()
Nfold_score = Nfold_Cross_Valid(Train_DS, y, clf)
sys.exit(0)
clf = CalibratedClassifierCV(base_estimator=clf, method='sigmoid')
clf.fit(Train_DS, y)
# feature = pd.DataFrame()
# feature['imp'] = clf.feature_importances_
# feature['col'] = Train_DS1.columns
# feature = feature.sort(['imp'], ascending=False).reset_index(drop=True)
# print(feature)
#Predict actual model
pred_Actual = clf.predict_proba(Actual_DS)[:,1]
print("Actual Model predicted")
#Get the predictions for actual data set
preds = pd.DataFrame(pred_Actual, index=Sample_DS.ID.values, columns=Sample_DS.columns[1:])
preds.to_csv(file_path+'output/Submission_Roshan_Misc_filter_2.csv', index_label='ID')
print("***************Ending Random Forest Classifier***************")
return pred_Actual
########################################################################################################################
#Main module #
########################################################################################################################
def main(argv):
pd.set_option('display.width', 200)
pd.set_option('display.height', 500)
warnings.filterwarnings("ignore")
global file_path, Train_DS1, Featimp_DS
#random.seed(1)
if(platform.system() == "Windows"):
file_path = 'C:/Python/Others/data/Kaggle/Springleaf_Marketing_Response/'
else:
file_path = '/home/roshan/Desktop/DS/Others/data/Kaggle/Springleaf_Marketing_Response/'
########################################################################################################################
#Read the input file , munging and splitting the data to train and test
########################################################################################################################
#Train_DS = pd.read_csv(file_path+'train.csv',sep=',')
#Actual_DS = pd.read_csv(file_path+'test.csv',sep=',')
Train_DS = pd.read_csv(file_path+'train_25000.csv',sep=',', index_col=0,nrows = 5000 ).reset_index(drop=True)
Actual_DS = pd.read_csv(file_path+'test_25000.csv',sep=',', index_col=0,nrows = 5000).reset_index(drop=True)
Sample_DS = pd.read_csv(file_path+'sample_submission.csv',sep=',')
Filter_DS = pd.read_csv(file_path+'Min_Max_DS_Analysis2.csv',sep=',')
Featimp_DS = pd.read_csv(file_path+'feature_imp.csv',sep=',')
Train_DS, Actual_DS, y = Data_Munging(Train_DS,Actual_DS, Filter_DS)
#pred_Actual = XGB_Classifier(Train_DS, y, Actual_DS, Sample_DS, Grid=False)
pred_Actual = RFC_Classifier(Train_DS, y, Actual_DS, Sample_DS, Grid=False)
#pred_Actual = Misc_Classifier(Train_DS, y, Actual_DS, Sample_DS, Grid=False)
########################################################################################################################
#Main program starts here #
########################################################################################################################
if __name__ == "__main__":
main(sys.argv)