" <-APL2-------------------- sam235.txt ---------------------------->
" <- compress (from slash) ----------------------------------------->
1 1 0 0 1 / 'stray'
L#q#3 4RI12
1 0 1 0 / q
L#m#3 2RI6
(1 0 / m)#'abc'
m
" <- compress with axis (from slash) ------------------------------->
L#n#3 2 4R'highlow hot coldup  down'
1 0 /[2]n
1 0 1 /[1]n
" <- compress (selective specification) ---------------------------->
L#m#3 2RI6
L#t#2 2R'abcd'
(1 0 1/[1]m)#t
m
)off