Hello to everyone. I'm trying to use the %in% to match to vectors in ff format. a<-as.ff(data[,1]) %in% fire$fecha
> aff (open) logical length=3653 (3653) [1] [2] [3] [4] [5] [6] [7] [8] [3646] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE : FALSE [3647] [3648] [3649] [3650] [3651] [3652] [3653] FALSE FALSE FALSE FALSE FALSE FALSE FALSE Here you see a part of the data: data[1:20,] (just a sample, data has 3653 obs) fecha juliano altura UTM.E UTM.N 1 1990-07-01 182 15 248500 6239500 2 1990-07-02 183 15 248500 6239500 3 1990-07-03 184 15 248500 6239500 4 1990-07-04 185 15 248500 6239500 5 1990-07-05 186 15 248500 6239500 6 1990-07-06 187 15 248500 6239500 7 1990-07-07 188 15 248500 6239500 8 1990-07-08 189 15 248500 6239500 9 1990-07-09 190 15 248500 6239500 10 1990-07-10 191 15 248500 6239500 11 1990-07-11 192 15 248500 6239500 12 1990-07-12 193 15 248500 6239500 13 1990-07-13 194 15 248500 6239500 14 1990-07-14 195 15 248500 6239500 15 1990-07-15 196 15 248500 6239500 16 1990-07-16 197 15 248500 6239500 17 1990-07-17 198 15 248500 6239500 18 1990-07-18 199 15 248500 6239500 19 1990-07-19 200 15 248500 6239500 20 1990-07-20 201 15 248500 6239500 > fire$fecha[1:20,] [1] "1984-11-08" "1984-11-08" "1984-11-09" "1984-11-09" > "1984-11-09" [6] "1984-11-10" "1984-11-10" "1984-11-11" "1984-11-11" "1984-11-11" [11] "1984-11-11" "1984-11-11" "1984-11-11" "1984-11-12" "1984-11-12" [16] "1984-11-13" "1984-11-13" "1984-11-13" "1984-11-14" "1984-11-14" to see if a got any match: table.ff(a) FALSE TRUE 1687 1966 Mensajes de aviso perdidosIn if (useNA == "no") c(NA, NaN) : la condición tiene longitud > 1 y sólo el primer elemento será usado in a regular data.frame I use data[a,] to extract the rows that a == TRUE, but when i do this in a ffdf i get this error: > data[a,]Error: vmode(index) == "integer" is not TRUE I'm just learning how to use the ff package so, obviously I'm missing something If any of you knows how to solve this, please teach me. Thank you so much. Lucas. [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.