def export_dataset_to_csv(request, input_dict, output_dict, widget):
"""Visualization for exporting dataset to CSV file and download of the file
:param request:
:param input_dict:
:param output_dict:
:param widget:
:return:
"""
output_dict = {}
dataset = input_dict['dataset']
csv = []
for i, sample in enumerate(dataset.data):
csv.append(np.append(
sample, dataset.target[i])) #join n_sample and n_feature array
destination = helpers.get_media_root() + '/' + str(
request.user.id) + '/' + str(widget.id) + '.csv'
np.savetxt(destination, csv, delimiter=",")
filename = str(request.user.id) + '/' + str(widget.id) + '.csv'
output_dict['filename'] = filename
return render(request, 'visualizations/string_to_file.html', {
'widget': widget,
'input_dict': input_dict,
'output_dict': output_dict
})
def export_dataset_to_csv(request,input_dict,output_dict,widget):
"""Visualization for exporting dataset to CSV file and download of the file
:param request:
:param input_dict:
:param output_dict:
:param widget:
:return:
"""
output_dict={}
dataset= input_dict['dataset']
csv=[]
for i,sample in enumerate(dataset.data):
csv.append(np.append(sample,dataset.target[i])) #join n_sample and n_feature array
destination = helpers.get_media_root()+'/'+str(request.user.id)+'/'+str(widget.id)+'.csv'
np.savetxt(destination, csv, delimiter=",")
filename = str(request.user.id)+'/'+str(widget.id)+'.csv'
output_dict['filename'] = filename
return render(request, 'visualizations/string_to_file.html',{'widget':widget,'input_dict':input_dict,'output_dict':output_dict})
def wekaLocalExportDatasetToARFF(request,input_dict,output_dict,widget):
import utilities as ut
from cf_core import helpers
if not jp.isThreadAttachedToJVM():
jp.attachThreadToJVM()
bunch = input_dict['instances']
output_dict = {}
instances = ut.convert_bunch_to_weka_instances(bunch)
destination = helpers.get_media_root()+'/'+str(request.user.id)+'/'+str(widget.id)+'.arff'
f = open(destination, 'w')
s = instances.toString()
f.write(s)
f.close()
filename = str(request.user.id)+'/'+str(widget.id)+'.arff'
output_dict['filename'] = filename
return render(request, 'visualizations/string_to_file.html',{'widget':widget,'input_dict':input_dict,'output_dict':output_dict})