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tp1457641p1457641
2010 Jan 30
2
Applying a transformation to multiple data frame columns
How can one simplify the folowing?
t$aum[is.na(t$aum)] = 0; t$aum.core[is.na(t$aum.core)] = 0
t$num[is.na(t$num)] = 0; t$num.core[is.na(t$num.core)] = 0
Thank you.
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