def select_indices():
print 'reading in features'
test_features = Input.load_testdata_caffefeatures(padded=True)
train_features = Input.load_traindata_caffefeatures(padded=True)
print 'selecting indices'
#get indices of features that have a non-zero variance in the test data
selector1 = VarianceThreshold()
selector1.fit_transform(test_features)
indices_test = selector1.get_support(indices=True)
#get indices of features that have a non-zero variance in the train data
selector2 = VarianceThreshold()
selector2.fit_transform(train_features)
indices_train = selector2.get_support(indices=True)
#only keep indices that have variance in both test and train data
indices = list(set(indices_test) & set(indices_train))
#add 1 to all indices
indices = [x + 1 for x in indices]
#save indices to csv file
myfile = open('caffefeature_indices_padded.csv', 'wb')
wr = csv.writer(myfile)
wr.writerow(indices)
'''Simple test file to test whether loading caffefeatures works properly. Selecting percentiles, selecting rows and giving error messages.
@author: Diede Kemper'''
from IO import Input
features = Input.load_validationset_caffefeatures()
print features.shape
print 'should be: 8061x3983'
features = Input.load_traindata_caffefeatures(userows=range(3000, 5500))
print features.shape
print 'should be: 2500x3983'
features = Input.load_validationset_caffefeatures(
featureSelectionMethod='chi2', Percentile=100)
print features.shape
print 'should be: 8061x3983'
features = Input.load_validationset_caffefeatures(featureSelectionMethod='hoi',
Percentile=90)
print features.shape
print 'should print error message'
features = Input.load_validationset_caffefeatures(
featureSelectionMethod='chi2', Percentile=210)
print features.shape
print 'should print error message'
features = Input.load_traindata_caffefeatures(featureSelectionMethod='chi2',
Percentile=5)
print features.shape
import pandas as pd
import time
from sklearn.ensemble import RandomForestClassifier
from IO import Input
from IO import Output
start_time = time.time()
# load train data
df_traindata_caf = Input.load_traindata_caffefeatures()
df_traindata_lab = Input.load_traindata_labels()
# Load test data
df_testdata_caf = Input.load_testdata_caffefeatures()
print("--- load data: %s seconds ---" % round((time.time() - start_time), 2))
start_time = time.time()
x_train = df_traindata_caf
y_train = df_traindata_lab
x_test = df_testdata_caf
# Train model
rf = RandomForestClassifier(n_estimators=500)
rf.fit(x_train, y_train)
print("--- train model: %s seconds ---" % round((time.time() - start_time), 2))
start_time = time.time()
# Predict