[R] replacement has length zero

fabiano chimbioputo at gmail.com
Sun Jul 8 15:57:11 CEST 2012


Thanks Peter.

We had a look at both Hab and habitat. These are integers representing
habitat types. 

habitat <- read.csv("Ungulate_vegetation.csv")
habitat <- habitat[,3]
habitat
[1] 3 3 4 3 3 3 4 4 3 3 3 3 3 4 2 3 2 3 2 3

Hab <- cbind(seq(1,20),habitat)
Hab
         habitat
 [1,]  1       3
 [2,]  2       3
 [3,]  3       4
 [4,]  4       3
 [5,]  5       3
 [6,]  6       3
 [7,]  7       4
 [8,]  8       4
 [9,]  9       3
[10,] 10       3
[11,] 11       3
[12,] 12       3
[13,] 13       3
[14,] 14       4
[15,] 15       2
[16,] 16       3
[17,] 17       2
[18,] 18       3
[19,] 19       2
[20,] 20       3

hab
     [,1] [,2] [,3] [,4] [,5] [,6] [,7]
[1,]   NA   NA   NA   NA   NA   NA   NA
[2,]   NA   NA   NA   NA   NA   NA   NA

for(i in 1:2){ hab[i, ] <- Hab[habitat==i,1] }

The idea is to assign habitat types to hab.

Thanks

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