[R] Change factor levels

Suppose I have a dataframe 'd' defined as L3 - LETTERS[1:3] d0 - data.frame(cbind(x = 1, y = 1:10), fac = sample(L3, 10, replace = TRUE)) (d - d0[d0$fac %in% c('A', 'B'),]) x y fac 2 1 2 B 3 1 3 A 4 1 4 A 5 1 5 A 6 1 6 B 8 1 8 A Even though factor 'fac' in 'd' only

Re: [R] Change factor levels

On 14.12.2013 21:09, Gang Chen wrote: Suppose I have a dataframe 'd' defined as L3 - LETTERS[1:3] d0 - data.frame(cbind(x = 1, y = 1:10), fac = sample(L3, 10, replace = TRUE)) (d - d0[d0$fac %in% c('A', 'B'),]) x y fac 2 1 2 B 3 1 3 A 4 1 4 A 5 1 5 A 6 1 6 B 8 1

Re: [R] Change factor levels

[gangch...@gmail.com] Küldve: 2013. december 14. 21:09 To: r-help Tárgy: [R] Change factor levels Suppose I have a dataframe 'd' defined as L3 - LETTERS[1:3] d0 - data.frame(cbind(x = 1, y = 1:10), fac = sample(L3, 10, replace = TRUE)) (d - d0[d0$fac %in% c('A', 'B'),]) x y fac 2

Re: [R] Change factor levels

Feladó: r-help-boun...@r-project.org [r-help-boun...@r-project.org] ; meghatalmaz#243;: Gang Chen [gangch...@gmail.com] Küldve: 2013. december 14. 21:09 To: r-help Tárgy: [R] Change factor levels Suppose I have a dataframe 'd' defined as L3 - LETTERS[1:3