Subset an input object - allele probabilities array or phenotypes matrix or covariates matrix. Kinship has its own subset function

An inputted matrix or 3-dimensional array is first subsetted - by rownames - to remove those subjects who are not in `id2keep`. After that, the object's rows are ordered to match the ordering of subject ids in the vector `id2keep`. This (possibly reordered) object is returned.

subset_input(input, id2keep)

Arguments

input	a matrix of either phenotypes or covariates or array of allele probabilities
id2keep	a character vector of subject ids to identify those subjects that are shared by all inputs

Value

an object resulting from subsetting of `input`. Its rows are ordered per `id2keep`

Examples

# define s_id
s_id <- paste0("s", 1:10)
# set up input matrix
foo <- matrix(data = rnorm(10 * 3), nrow = 10, ncol = 3)
rownames(foo) <- s_id
subset_input(input = foo, id2keep = s_id)
#>            [,1]        [,2]       [,3]
#> s1  -1.34074797 -2.16814685  0.4169224
#> s2  -2.19271124 -0.91754935 -2.2745533
#> s3   1.56809186  0.10268885 -1.2683205
#> s4  -0.03514251  0.07783576  0.6346674
#> s5   1.55185708 -0.54841718  0.2799669
#> s6  -0.63760140  2.20743416  1.1000911
#> s7  -0.98548753  0.31547913  0.6364982
#> s8  -2.10558882  0.03216748  0.8395000
#> s9  -0.04354969  0.15585690 -0.3503503
#> s10  0.90456079 -1.62969131  1.1048359