我编写了这段代码来计算大样本的众数和标准差:
import numpy as np
import csv
import scipy.stats as sp
import math
r=open('stats.txt', 'w') #file with results
r.write('Data File'+'\t'+ 'Mode'+'\t'+'Std Dev'+'\n')
f=open('data.ls', 'rb') #file with the data files
for line in f:
dataf=line.strip()
data=csv.reader(open(dataf, 'rb'))
data.next()
data_list=[]
datacol=[]
data_list.extend(data)
for rows in data_list:
datacol.append(math.log10(float(rows[73])))
m=sp.mode(datacol)
s=sp.std(datacol)
r.write(dataf+'\t'+str(m)+'\t'+str(s)+'\n')
del(datacol)
del(data_list)
哪个运作良好-我认为!但是,在我运行代码之后,我的终端上出现了一条错误消息,我想知道是否有人可以告诉我这意味着什么?
/usr/lib/python2.6/dist-packages/scipy/stats/stats.py:1328: DeprecationWarning: scipy.stats.std is deprecated; please update your code to use numpy.std.
Please note that:
- numpy.std axis argument defaults to None, not 0
- numpy.std has a ddof argument to replace bias in a more general manner.
scipy.stats.std(a, bias=True) can be replaced by numpy.std(x,
axis=0, ddof=0), scipy.stats.std(a, bias=False) by numpy.std(x, axis=0,
ddof=1).
ddof=1).""", DeprecationWarning)
/usr/lib/python2.6/dist-packages/scipy/stats/stats.py:1304: DeprecationWarning: scipy.stats.var is deprecated; please update your code to use numpy.var.
Please note that:
- numpy.var axis argument defaults to None, not 0
- numpy.var has a ddof argument to replace bias in a more general manner.
scipy.stats.var(a, bias=True) can be replaced by numpy.var(x,
axis=0, ddof=0), scipy.stats.var(a, bias=False) by var(x, axis=0,
ddof=1).
ddof=1).""", DeprecationWarning)
/usr/lib/python2.6/dist-packages/scipy/stats/stats.py:420: DeprecationWarning: scipy.stats.mean is deprecated; please update your code to use numpy.mean.
Please note that:
- numpy.mean axis argument defaults to None, not 0
- numpy.mean has a ddof argument to replace bias in a more general manner.
scipy.stats.mean(a, bias=True) can be replaced by numpy.mean(x,
axis=0, ddof=1).
axis=0, ddof=1).""", DeprecationWarning)