trans_array function

trans_array

transform rownames for microarray or rnaseq expression matrix

trans_array(exp, ids, from = "probe_id", to = "symbol")

Arguments

• exp: microarray expression matrix with probe_id as rownames
• ids: data.frame with original rownames and new rownames
• from: colname for original rownames
• to: colname for new rownames

Returns

a transformed expression set with new rownames

Examples

exp = matrix(1:50,nrow = 10)
rownames(exp) = paste0("g",1:10)
ids = data.frame(probe_id = paste0("g",1:10),
                symbol = paste0("G",c(1:9,9)))
trans_array(exp,ids)

See Also

trans_exp

Author(s)

Xiaojie Sun