Re: [R] aggregate data.frame based on column class

- From: Martin Batholdy To: "r-help@r-project.org" Cc: Sent: Friday, January 11, 2013 10:07 AM Subject: [R] aggregate data.frame based on column class Hi, When using the aggregate function to aggregate a data.frame by one or more grouping variables I often have the problem, that I want t

Re: [R] aggregate data.frame based on column class

3 10:07 AM Subject: [R] aggregate data.frame based on column class Hi, When using the aggregate function to aggregate a data.frame by one or more grouping variables I often have the problem, that I want the mean for some numeric variables but the unique value for factor variables. So for example in

Re: [R] aggregate data.frame based on column class

Please see in line. On Fri, Jan 11, 2013 at 10:07 AM, Martin Batholdy wrote: > Hi, > > When using the aggregate function to aggregate a data.frame by one or more > grouping variables I often have the problem, that I want the mean for some > numeric variables but the unique value for factor vari

[R] aggregate data.frame based on column class

Hi, When using the aggregate function to aggregate a data.frame by one or more grouping variables I often have the problem, that I want the mean for some numeric variables but the unique value for factor variables. So for example in this data-frame: data <- data.frame(x = rnorm(10,1,2), group

Re: [R] aggregate data.frame

Tena koe Alfredo ?merge HTH ... Peter Alspach > -Original Message- > From: r-help-boun...@r-project.org > [mailto:r-help-boun...@r-project.org] On Behalf Of Alfredo > Alessandrini > Sent: Tuesday, 10 November 2009 1:16 p.m. > To: r-help@r-project.org > S

[R] aggregate data.frame

Hi, I've two data.frame: ind_comp and dati_area > ind_comp INDEXindice 1 1 0.3081856 2 2 0.1368007 3 3 0.1290952 4 4 0.2905484 5 5 0.2686706 6 6 0.1122784 7 7 0.4493264 8 8 0.1932665 9 9 0.1982783 1011 0.3724666 > dati_area X_COORD