set mode ignore_errors

can region
let a = pass_thru(x)
plot a[i=1:20]
set region/i=1:20
plot sin(a)
can var/all
can region

use coads_climatology
let a = pass_thru(sst[l=@ave,y=@sbx:11])
shade a
let a = pass_thru(sst)
set region/@w
shade a                       ! DELIBERATE ERROR
shade a[l=1]
shade a[l=@ave,y=@sbx:11]

set mode/last ignore_errors
