def pd_colcat_bin(df, col=None, pars=None):
# dfbum_bin = df[col]
path_pipeline = pars.get('path_pipeline', False)
colcat_bin_map = load(
f'{path_pipeline}/colcat_bin_map.pkl') if path_pipeline else None
colcat = [col] if isinstance(col, str) else col
log("#### Colcat to integer encoding ")
dfcat_bin, colcat_bin_map = util_feature.pd_colcat_toint(
df[colcat], colname=colcat, colcat_map=colcat_bin_map, suffix="_int")
colcat_bin = list(dfcat_bin.columns)
##### Colcat processing ################################################################
colcat_map = util_feature.pd_colcat_mapping(df, colcat)
log(df[colcat].dtypes, colcat_map)
if 'path_features_store' in pars:
save_features(dfcat_bin, 'dfcat_bin', pars['path_features_store'])
save(colcat_bin_map,
pars['path_pipeline_export'] + "/colcat_bin_map.pkl")
save(colcat_bin, pars['path_pipeline_export'] + "/colcat_bin.pkl")
col_pars = {}
col_pars['colcat_bin_map'] = colcat_bin_map
col_pars['cols_new'] = {
'colcat': col, ###list
'colcat_bin': colcat_bin ### list
}
return dfcat_bin, col_pars
def preprocess(df, path_pipeline="data/pipeline/pipe_01/", preprocess_pars={}):
"""
FUNCTIONNAL approach is used for pre-processing, so the code can be EASILY extensible to PYSPPARK.
PYSPARK supports better UDF, lambda function
"""
from util_feature import (pd_colnum_tocat, pd_col_to_onehot,
pd_colcat_toint, pd_feature_generate_cross)
log("########### Load column by column type ##################################"
)
colid = load(f'{path_pipeline}/colid.pkl')
coly = load(f'{path_pipeline}/coly.pkl')
colcat = load(f'{path_pipeline}/colcat.pkl')
colcat_onehot = load(f'{path_pipeline}/colcat_onehot.pkl')
colcat_bin_map = load(f'{path_pipeline}/colcat_bin_map.pkl')
colnum = load(f'{path_pipeline}/colnum.pkl')
colnum_binmap = load(f'{path_pipeline}/colnum_binmap.pkl')
colnum_onehot = load(f'{path_pipeline}/colnum_onehot.pkl')
### OneHot column selected for cross features
colcross_single_onehot_select = load(
f'{path_pipeline}/colcross_single_onehot_select.pkl')
pipe_default = [
'filter',
'label',
'dfnum_bin',
'dfnum_hot',
'dfcat_bin',
'dfcat_hot',
'dfcross_hot',
]
pipe_list = preprocess_pars.get('pipe_list', pipe_default)
if "dfcat_bin" in pipe_list:
log("###### Colcat as integer encoded ####################################"
)
dfcat_bin, _ = pd_colcat_toint(df[colcat],
colname=colcat,
colcat_map=colcat_bin_map,
suffix="_int")
colcat_bin = list(dfcat_bin.columns)
if "dfcat_hot" in pipe_list:
log("###### Colcat to onehot ###############################################"
)
dfcat_hot, _ = pd_col_to_onehot(df[colcat],
colname=colcat,
colonehot=colcat_onehot,
return_val="dataframe,param")
log(dfcat_hot[colcat_onehot].head(5))
if "dfnum_bin" in pipe_list:
log("###### Colnum Preprocess ###########################################"
)
dfnum_bin, _ = pd_colnum_tocat(df,
colname=colnum,
colexclude=None,
colbinmap=colnum_binmap,
bins=-1,
suffix="_bin",
method="",
return_val="dataframe,param")
log(colnum_binmap)
colnum_bin = [x + "_bin" for x in list(colnum_binmap.keys())]
log(dfnum_bin[colnum_bin].head(5))
if "dfnum_hot" in pipe_list:
###### Map numerics bin to One Hot
dfnum_hot, _ = pd_col_to_onehot(dfnum_bin[colnum_bin],
colname=colnum_bin,
colonehot=colnum_onehot,
return_val="dataframe,param")
log(dfnum_hot[colnum_onehot].head(5))
print('------------dfcat_hot---------------------', dfcat_hot)
print('------------dfnum_hot---------------------', dfnum_hot)
print('------------colcross_single_onehot_select---------------------',
colcross_single_onehot_select)
if "dfcross_hot" in pipe_list:
log("####### colcross cross features ###################################################"
)
dfcross_hot = pd.DataFrame()
if colcross_single_onehot_select is not None:
df_onehot = dfcat_hot.join(dfnum_hot, on=colid, how='left')
# colcat_onehot2 = [x for x in colcat_onehot if 'companyId' not in x]
# log(colcat_onehot2)
# colcross_single = colnum_onehot + colcat_onehot2
df_onehot = df_onehot[colcross_single_onehot_select]
dfcross_hot, colcross_pair = pd_feature_generate_cross(
df_onehot,
colcross_single_onehot_select,
pct_threshold=0.02,
m_combination=2)
log(dfcross_hot.head(2).T)
colcross_onehot = list(dfcross_hot.columns)
del df_onehot
gc.collect()
log("##### Merge data type together : #######################3############################ "
)
dfX = df[colnum + colcat]
for t in [
'dfnum_bin',
'dfnum_hot',
'dfcat_bin',
'dfcat_hot',
'dfcross_hot',
]:
if t in locals():
dfX = pd.concat((dfX, locals()[t]), axis=1)
# log(t, list(dfX.columns))
colX = list(dfX.columns)
#colX.remove(coly)
del df
gc.collect()
log("###### Export columns group ##########################################################"
)
cols_family = {}
for t in [
'colid',
'coly', #added 'coly'
"colnum",
"colnum_bin",
"colnum_onehot",
"colnum_binmap", #### Colnum columns
"colcat",
"colcat_bin",
"colcat_onehot",
"colcat_bin_map", #### colcat columns
'colcross_single_onehot_select',
"colcross_pair_onehot",
'colcross_pair', #### colcross columns
'colsX',
'coly'
]:
t_val = locals().get(t, None)
if t_val is not None:
cols_family[t] = t_val
return dfX, cols_family
def preprocess(path_train_X="", path_train_y="", path_pipeline_export="", cols_group=None, n_sample=5000,
preprocess_pars={}, filter_pars={}, path_features_store=None):
"""
:param path_train_X:
:param path_train_y:
:param path_pipeline_export:
:param cols_group:
:param n_sample:
:param preprocess_pars:
:param filter_pars:
:param path_features_store:
:return:
"""
from util_feature import (pd_colnum_tocat, pd_col_to_onehot, pd_colcat_mapping, pd_colcat_toint,
pd_feature_generate_cross)
##### column names for feature generation #####################################################
log(cols_group)
coly = cols_group['coly'] # 'salary'
colid = cols_group['colid'] # "jobId"
colcat = cols_group['colcat'] # [ 'companyId', 'jobType', 'degree', 'major', 'industry' ]
colnum = cols_group['colnum'] # ['yearsExperience', 'milesFromMetropolis']
colcross_single = cols_group.get('colcross', []) ### List of single columns
coltext = cols_group.get('coltext', [])
coldate = cols_group.get('coldate', [])
colall = colnum + colcat + coltext + coldate
log(colall)
#### Pipeline Execution
pipe_default = [ 'filter', 'label', 'dfnum_bin', 'dfnum_hot', 'dfcat_bin', 'dfcat_hot', 'dfcross_hot', ]
pipe_list = preprocess_pars.get('pipe_list', pipe_default)
pipe_list.append('dfdate')
pipe_list_pars = preprocess_pars.get('pipe_pars', [])
##### Load data ##############################################################################
df = load_dataset(path_train_X, path_train_y, colid, n_sample= n_sample)
##### Filtering / cleaning rows : #########################################################
if "filter" in pipe_list :
def isfloat(x):
try :
a= float(x)
return 1
except:
return 0
ymin, ymax = filter_pars.get('ymin', -9999999999.0), filter_pars.get('ymax', 999999999.0)
print(coly)
df['_isfloat'] = df[ coly ].apply(lambda x : isfloat(x))
print(df['_isfloat'])
df = df[ df['_isfloat'] > 0 ]
df = df[df[coly] > ymin]
df = df[df[coly] < ymax]
##### Label processing ####################################################################
y_norm_fun = None
if "label" in pipe_list :
# Target coly processing, Normalization process , customize by model
log("y_norm_fun preprocess_pars")
y_norm_fun = preprocess_pars.get('y_norm_fun', None)
if y_norm_fun is not None:
df[coly] = df[coly].apply(lambda x: y_norm_fun(x))
save(y_norm_fun, f'{path_pipeline_export}/y_norm.pkl' )
save_features(df[coly], 'dfy', path_features_store)
########### colnum procesing #############################################################
for x in colnum:
print('bam',x)
df[x] = df[x].astype("float")
log(df[colall].dtypes)
if "dfnum" in pipe_list :
pass
if "dfnum_norm" in pipe_list :
log("### colnum normalize ###############################################################")
from util_feature import pd_colnum_normalize
pars = { 'pipe_list': [ {'name': 'fillna', 'naval' : 0.0 }, {'name': 'minmax'} ]}
dfnum_norm, colnum_norm = pd_colnum_normalize(df, colname=colnum, pars=pars, suffix = "_norm",
return_val="dataframe,param")
log(colnum_norm)
save_features(dfnum_norm, 'dfnum_norm', path_features_store)
if "dfnum_bin" in pipe_list :
log("### colnum Map numerics to Category bin ###########################################")
dfnum_bin, colnum_binmap = pd_colnum_tocat(df, colname=colnum, colexclude=None, colbinmap=None,
bins=10, suffix="_bin", method="uniform",
return_val="dataframe,param")
log(colnum_binmap)
### Renaming colunm_bin with suffix
colnum_bin = [x + "_bin" for x in list(colnum_binmap.keys())]
log(colnum_bin)
save_features(dfnum_bin, 'dfnum_binmap', path_features_store)
if "dfnum_hot" in pipe_list and "dfnum_bin" in pipe_list :
log("### colnum bin to One Hot")
dfnum_hot, colnum_onehot = pd_col_to_onehot(dfnum_bin[colnum_bin], colname=colnum_bin,
colonehot=None, return_val="dataframe,param")
log(colnum_onehot)
save_features(dfnum_hot, 'dfnum_onehot', path_features_store)
##### Colcat processing ################################################################
colcat_map = pd_colcat_mapping(df, colcat)
log(df[colcat].dtypes, colcat_map)
if "dfcat_hot" in pipe_list :
log("#### colcat to onehot")
dfcat_hot, colcat_onehot = pd_col_to_onehot(df[colcat], colname=colcat,
colonehot=None, return_val="dataframe,param")
log(dfcat_hot[colcat_onehot].head(5))
save_features(dfcat_hot, 'dfcat_onehot', path_features_store)
if "dfcat_bin" in pipe_list :
log("#### Colcat to integer encoding ")
dfcat_bin, colcat_bin_map = pd_colcat_toint(df[colcat], colname=colcat,
colcat_map=None, suffix="_int")
colcat_bin = list(dfcat_bin.columns)
save_features(dfcat_bin, 'dfcat_bin', path_features_store)
if "dfcross_hot" in pipe_list :
log("##### Cross Features From OneHot Features ######################################")
try :
df_onehot = dfcat_hot.join(dfnum_hot, on=colid, how='left')
except :
df_onehot = copy.deepcopy(dfcat_hot)
colcross_single_onehot_select = []
for t in list(df_onehot) :
for c1 in colcross_single :
if c1 in t :
colcross_single_onehot_select.append(t)
df_onehot = df_onehot[colcross_single_onehot_select ]
dfcross_hot, colcross_pair = pd_feature_generate_cross(df_onehot, colcross_single_onehot_select,
pct_threshold=0.02, m_combination=2)
log(dfcross_hot.head(2).T)
colcross_pair_onehot = list(dfcross_hot.columns)
save_features(dfcross_hot, 'dfcross_onehot', path_features_store)
del df_onehot ,colcross_pair_onehot
if "dftext" in pipe_list :
log("##### Coltext processing ###############################################################")
stopwords = nlp_get_stopwords()
pars = {'n_token' : 100 , 'stopwords': stopwords}
dftext = None
for coltext_i in coltext :
##### Run the text processor on each column text #############################
dftext_i = pipe_text( df[[coltext_i ]], coltext_i, pars )
dftext = pd.concat((dftext, dftext_i), axis=1) if dftext is not None else dftext_i
save_features(dftext_i, 'dftext_' + coltext_i, path_features_store)
log(dftext.head(6))
save_features(dftext, 'dftext', path_features_store)
if "dfdate" in pipe_list :
log("##### Coldate processing #############################################################")
from utils import util_date
dfdate = None
for coldate_i in coldate :
dfdate_i = util_date.pd_datestring_split( df[[coldate_i]] , coldate_i, fmt="auto", return_val= "split" )
dfdate = pd.concat((dfdate, dfdate_i), axis=1) if dfdate is not None else dfdate_i
save_features(dfdate_i, 'dfdate_' + coldate_i, path_features_store)
save_features(dfdate, 'dfdate', path_features_store)
print('spoo',dfdate)
###################################################################################
# ###############
##### Save pre-processor meta-parameters
os.makedirs(path_pipeline_export, exist_ok=True)
log(path_pipeline_export)
cols_family = {}
for t in ['colid',
"colnum", "colnum_bin", "colnum_onehot", "colnum_binmap", #### Colnum columns
"colcat", "colcat_bin", "colcat_onehot", "colcat_bin_map", #### colcat columns
'colcross_single_onehot_select', "colcross_pair_onehot", 'colcross_pair', #### colcross columns
'coldate',
'coltext',
"coly", "y_norm_fun"
]:
tfile = f'{path_pipeline_export}/{t}.pkl'
log(tfile)
t_val = locals().get(t, None)
if t_val is not None :
save(t_val, tfile)
cols_family[t] = t_val
###### Merge AlL #############################################################################
dfXy = df[colnum + colcat + [coly] ]
print('localTT',dfXy)
for t in [ 'dfnum_bin', 'dfnum_hot', 'dfcat_bin', 'dfcat_hot', 'dfcross_hot',
'dfdate', 'dftext' ] :
if t in locals() :
print('localT', t, locals()[t])
dfXy = pd.concat((dfXy, locals()[t] ), axis=1)
save_features(dfXy, 'dfX', path_features_store)
colXy = list(dfXy.columns)
colXy.remove(coly) ##### Only X columns
cols_family['colX'] = colXy
save(colXy, f'{path_pipeline_export}/colsX.pkl' )
save(cols_family, f'{path_pipeline_export}/cols_family.pkl' )
###### Return values #########################################################################
return dfXy, cols_family