Re: [R] FW: Group by and duplicate a value/dplyr

Hi Petr, Thanks for your help! it works perfectly fine.  On Tuesday, May 11, 2021, 01:36:50 PM GMT+2, PIKAL Petr wrote: I forgot to cc to rhelp. Petr Hi Dunno how to do it by dplyr I would use ave df$MinValue <- ave(df$Value, paste(df$Class, df$Department), FUN = function(x) min(

[R] FW: Group by and duplicate a value/dplyr

I forgot to cc to rhelp. Petr Hi Dunno how to do it by dplyr I would use ave df$MinValue <- ave(df$Value, paste(df$Class, df$Department), FUN = function(x) min(x[x>0])) Cheers Petr > > -Original Message- > > From: R-help On Behalf Of Elahe chalabi > via > > R-help > > Sent: Tuesday,