Guyf的专栏

python的读取文件，主要是语法

#!/usr/bin/env python rd = open('whoBuyWhat.csv') data3 = open('data_16_16_3.csv') wr3 = open('delNoBuyed4.5.1.csv','w+') rdt = rd.readlines() rdt_id = [] for key in rdt:   te = key.split(',')

#!/usr/bin/env python rd3 = open('data_17_17_2.csv') base = open('data_17_17_3.csv') wr3 = open('delNoBuyed3DayAndStoreAndInCar4.5.2.csv','w+') bsData = base.readlines() i = 1 for key in rd3:  

#!/usr/bin/env python from datetime import datetime fl = open('tianchi_mobile_recommend_train_user.csv') ns = open('data_16_16_3.csv','w+') #na = open('data_17_17_2.csv','w+') nsf = [] naf = []

#!/usr/bin/env python fl = open('delNoBuyed4.5.1.csv') na = open('valia_17.csv') fl.readline() submit = fl.readlines() na17 = na.readlines() sub_num = len(submit) na_num = len(na17) ri = 0 fo

data1 元数据 219 precision:0.0401098901099 recall:0.0566330488751 f1:0.0469604374397 大于25天点击 168 precision:0.0431654676259 recall:0.0434445306439 f1:0.0433045495554 大于20天点击 207 preci

#!/usr/bin/env python fl = open('not.csv') wr = open('changeTpye.csv','w+') for key in fl:   pt = key.split(',')   wr.write(pt[0]+'::'+pt[1]+'::'+pt[2]+'::'+pt[4])   print pt fl.close() wr.clo

#!/usr/bin/env python import numpy as np from datetime import datetime #fl = open('te.csv') #item_id,item_geohash,item_category fl = open('tianchi_mobile_recommend_train_user.csv') #user_id,item

#!/usr/bin/env python fl = open('train.csv') wrr = open('no_time_but_add.csv','w+') for key in fl:   pt = key.split(',')   if pt[2] != '':     wrr.write(key)     print pt fl.close() wr.close(

#!/usr/bin/env python import numpy as np fl = open('te.csv') try:   text = fl.readline( ) finally:   print text   #fl.close( ) #print text #data = np.loadtxt("\usr\data\tianchi_mobile_recomm

前4天，通过购物车购买 precision:0.0153313777615 recall:0.177594903106 f1:0.0282260616417 前4天，通过收藏夹购买 precision:0.00326368668608 recall:0.0270772498009 f1:0.00582524271845 前4天 ， 通过购物车&收藏夹购买 precision: