how do you Apply math multiply a number to a decimal point python-CodePudding

i want apply lambda to do multiplication which is condition type data float value like this

0.412

0.0036

0.0467

0.000678

0.00000342

expected output

0.41

0.36

0.47

0.68

0.34

CodePudding user response：

Try this :

df["col"] = df["col"].replace("\.0*", ".", regex=True).astype(float).round(2)

print(df)

   col
0 0.41
1 0.36
2 0.47
3 0.68
4 0.34

CodePudding user response：

Try this:

import re
lambda_func = lambda x: re.sub(r'(\.0*)', r'.', str(x))