Hello,

Suppose that you have a data frame 'df' with variables 'V1', 'V2', 'V3',
etc.
Is there any (performance) difference (except the difference of the return
types)
between the following two computations?


subset(df, V1 > 0, V2)

and

df$V2[df$V1 > 0]


Best Regards,
hyunjo

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