こんな感じだろうか。 library(xcms) tmp_mspecs <- list(matrix(1:10, ncol = 2), matrix(2:11, ncol = 2), matrix(3:12, ncol = 2)) tmp_colnams <- c("seqNum", "acquisitionNum", "msLevel", "polarity", "peaksCount", "totIonCurrent", "retentionTime…