Re: [R] Replace a column value on condition

2015-03-23 Thread PIKAL Petr
elp [mailto:r-help-boun...@r-project.org] On Behalf Of Kuma > Raj > Sent: Monday, March 23, 2015 1:59 PM > To: r-help@r-project.org > Subject: [R] Replace a column value on condition > > I want to replace column c3 with values from column c2 whenever values > of column Id are 2.

Re: [R] Replace a column value on condition

2015-03-23 Thread Berend Hasselman
> On 23-03-2015, at 13:58, Kuma Raj wrote: > > I want to replace column c3 with values from column c2 whenever values > of column Id are 2. In stata I could use replace c3 = c2 if id ==2. > How could I do that in R? > k <- which(df4$id==2) df4[k,"c3"] <- df4[k,"c2”] Berend > Thanks > > >

[R] Replace a column value on condition

2015-03-23 Thread Kuma Raj
I want to replace column c3 with values from column c2 whenever values of column Id are 2. In stata I could use replace c3 = c2 if id ==2. How could I do that in R? Thanks Sample data found below: > dput(df4) structure(list(c2 = c(42L, 42L, 47L, 47L, 55L, 55L, 36L, 36L, 61L, 61L), c3 = c(68L, 5