https://github.com/linhesun/bilibiliRlearning/blob/4c12723192ec5e2900957e845110c68ccc14e616/2023_r45_pcoa/pcoa.R#L15 rep(c('CK', 'P'), each = 3, times = 2)
bilibiliRlearning/2023_r45_pcoa/pcoa.R
Line 15 in 4c12723
rep(c('CK', 'P'), each = 3, times = 2)