Re: [R] Return the indices of rows of a data frame

2016-09-20 Thread Bert Gunter
There are many good R tutorials on the web. Some recommendations can be found here: https://www.rstudio.com/online-learning/#R Please spend some time learning fundamental R constructs and functionality before posting what appear to be very basic questions here. Cheers, Bert Bert Gunter "The t

Re: [R] Return the indices of rows of a data frame

2016-09-20 Thread Robert Baer
On 9/19/2016 10:37 PM, John wrote: Hi, I have the following dataframe: temp<-data.frame(a=c(1,1,2), b=2:4, c=1:3) row.names(temp)<-c("D", "E", "F") temp a b c D 1 2 1 E 1 3 2 F 2 4 3 I would like R to tell me which rows has value "a" equal to 1. The answer is the first row and t

Re: [R] Return the indices of rows of a data frame

2016-09-19 Thread Jeff Newmiller
What do you think? This is covered in the Introduction to R document that comes with R. -- Sent from my phone. Please excuse my brevity. On September 19, 2016 8:37:30 PM PDT, John wrote: >Hi, > > I have the following dataframe: > >> temp<-data.frame(a=c(1,1,2), b=2:4, c=1:3) >> row.names(temp)

[R] Return the indices of rows of a data frame

2016-09-19 Thread John
Hi, I have the following dataframe: > temp<-data.frame(a=c(1,1,2), b=2:4, c=1:3) > row.names(temp)<-c("D", "E", "F") > temp a b c D 1 2 1 E 1 3 2 F 2 4 3 I would like R to tell me which rows has value "a" equal to 1. The answer is the first row and the second row, or row D and row E. Whi