如何解决Python 将包含科学值和浮点值的 Pandas 数据框与浮点数相乘
import pandas as pd
df=pd.DataFrame({‘years’:[‘Y0’,‘Y1’,’Y2’,’Y3’],‘price1’:[0.01,0.0029,0.00368,0.00439536],‘price2’:[0.02,0.001,9.161781253394068e-04,0.001718]})
df.iloc[1:,1:] = df.iloc[1:,1:].mul(0.75)
由于 df 中的科学值,它出现错误,如果有人有任何建议或帮助解决此问题,请告诉我?
错误:
TypeError: Could not operate 0.75 with block values can’t multiply sequence by non-int of type ‘float’
解决方法
你可以试试下面的方法吗?
void
,
我猜您是因为类型而遇到此问题。您可以尝试将列转换为浮点类型 -
import pandas as pd
df=pd.DataFrame({'years':['Y0','Y1','Y2','Y3'],'price1':[0.01,0.0029,0.00368,0.00439536],'price2':[0.02,0.001,9.161781253394068e-04,0.001718]})
# converting dtype
df['price1'] = pd.to_numeric(df['price1'],errors='coerce')
df['price2'] = pd.to_numeric(df['price2'],errors='coerce')
df.iloc[1:,1:] = df.iloc[1:,1:].mul(0.75)
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