Decimal class rounding in Pandas

问题

i have problems rounding Decimals() inside a Pandas Dataframe. The round() method does not work and using quantize() neither. I've searched for a solution with no luck so far.

round() does nothing, i asume it is meant for float numbers

quantize() won't work because it is not a DataFrame function

Any thoughts?

回答1:

Since pandas has no quantize method i used the following to solve the problem:

out.applymap(lambda x: x.quantize(dc.Decimal('1.00')))

回答2:

To round your decimal to 2 significant figures for example:

round(df['yourSeries'].astype('float'), 2)

Or if you just want an int:

round(df['yourSeries'].astype('float'))

来源：https://stackoverflow.com/questions/54773447/decimal-class-rounding-in-pandas