python - 列长度​​可以是小数吗

Question

我的问题是可能len(df)是小数

len(DataFrame)

编码：

import pandas as pd
from sklearn import preprocessing ,model_selection ,svm
from sklearn.linear_model import LinearRegression

df = quandl.get('WIKI/GOOGL',authtoken = 
't_nBiw5yVx3CXs3Zsuco')


df = df[['Open','High','Low','Close','Volume']]
HL_pct = (df['High'] - df['Low']) / df['Low'] * 100
PCT_change = (df['Close'] - df['Open']) / df['Open'] * 100

df = ['Volume','HL_pct','PCT_change','Close']

print(len(df))
forcast_col  = df['Close']

标签： pythonpandasdataframe

Answer 1

如果您指的是 python 函数len，该函数将返回对象中的项目数。它不能是小数，因为项目不能是十进制数（即半个int）。