Subset mppData object
Pull out a specified set of markers and/or genotypes from a mppData
object.
## S3 method for class 'mppData' subset(x, mk.list = NULL, gen.list = NULL, ...)
x |
An object of class |
mk.list |
Optional |
gen.list |
Optional |
... |
Ignored. |
Return:
The mppData object but with only the specified subset of data.
Vincent Garin
### Marker subset data(mppData) # Random selection of markers mk.list <- sample(mppData$map[, 1], 50) mppData_sub <- subset(x = mppData, mk.list = mk.list) # Selection of chromosome 1 marker mk.list <- (mppData$map[, 2] == 1) mppData_sub <- subset(x = mppData, mk.list = mk.list) ### Genotype subset # Random selection of genotypes gen.list <- sample(mppData$geno.id, 200) mppData_sub <- subset(x = mppData, gen.list = gen.list) # Selection of genotype from cross 2 and 5 crosses <- unique(mppData$cross.ind) gen.list <- mppData$geno.id[mppData$cross.ind %in% crosses[c(2, 5)]] mppData_sub <- subset(x = mppData, gen.list = gen.list) ### Marker and genotype subset mk.list <- sample(mppData$map[, 1], 50) gen.list <- sample(mppData$geno.id, 200) mppData_sub <- subset(x = mppData, mk.list = mk.list, gen.list = gen.list)
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