将结果写入Excel

我很新的python编程。 我正在尝试使用python xlwt模块来写入结果来优化。 错误是TypeError：'float'对象是不可迭代的。 我无法修复它。 任何人都可以帮助我这个。 我感谢任何帮助。

from math import * import pylab as z; from matplotlib import style import numpy as np; from xlwt import * import xlwt SMALL_FONT =("Verdana", 8) style.use('ggplot') def PriceMovements(S0, down, up, totalsteps, upsteps): S = S0*(pow(up, upsteps))*(pow(down, totalsteps-upsteps)) return S def binomial(d, u, p): g = np.random.binomial(1,p) if g == 1: return u else: return d def write(self, r, c, label =""): self.row(r).write(c, label) #Use the following numbers to console the setting for binomial graph nodes = 8 #Nodes S = 100.0 #Initial spot price u = 1.1346 #Up factor d = 0.8814 #Down factor p = 0.7844 # Probability r = 1.08 #1+Interest rate n = 3 #Steps numberofpaths = 2**nodes valuelist = [] #Emptylist z.figure(0) #Generating the figure temp = S #Temporary variable for i in range(0, numberofpaths, 1): valuelist =[] S = temp; for c in range(0, nodes + 1, 1): valuelist.append(S) S = S*binomial(d, u, p) z.plot(range(0, nodes + 1, 1), valuelist) for i in range(nodes): z.text(i+.2,valuelist[i]-25,'{:4.1f}'.format(valuelist[i])) wb = xlwt.Workbook() ws = wb.add_sheet('Sheet1') for r, row in enumerate(valuelist): for c, col in enumerate(row): ws.write(r, 2+c, lable = col) wb.save('exampleResult.xls') 

Answer 1

IIUC你需要枚举list值列表，因为row是type float值：

 print valuelist [100.0, 113.46000000000001, 100.00364400000001, 113.46413448240001, 128.73640698373106, 146.06432736374126, 165.72458582690084, 146.06964994783038, 165.73062483080835] for r, row in enumerate(valuelist): print r print row ws.write(r, 2+r, label = row) 0 100.0 1 113.46 2 100.003644 3 113.464134482 4 128.736406984 5 146.064327364 6 165.724585827 7 146.069649948 8 165.730624831 wb.save('exampleResult.xls') 

编辑评论：

我认为你需要在每个循环中创build一个由valuelist lists填充的lists 。 然后你可以创buildDataFrame并将其写入到：

 import pandas as pd ... numberofpaths = 2**nodes valuelist = [] #Emptylist #add listofvaluelists listofvaluelists = [] z.figure(0) #Generating the figure temp = S #Temporary variable for i in range(0, numberofpaths, 1): valuelist =[] S = temp; for c in range(0, nodes + 1, 1): valuelist.append(S) S = S*binomial(d, u, p) z.plot(range(0, nodes + 1, 1), valuelist) #append listofvaluelists listofvaluelists.append(valuelist) for i in range(nodes): z.text(i+.2,valuelist[i]-25,'{:4.1f}'.format(valuelist[i])) #print listofvaluelists #create new DataFrame df = pd.DataFrame(listofvaluelists) print df #write DataFrame to excel df.to_excel('exampleResult.xls', sheet_name='Sheet1')