set mode ignore_errors

can region
use coads_climatology
let a1 = sst[d=1,l=1]
let a2 = sst[d=1,l=2]
let a3 = sst[d=1,l=3]

let a = add_9(a1,a2,a3,a1,a2,a3,a1,a2,a3)
shade a
shade a - 3 * sst[d=1,l=1:3@sum]

let a3 = sst[d=1,x=180]
shade a                   ! DELIBERATE ERROR

let a3 = sst[d=1,x=180,l=3]
shade a

let a3 = sst[d=1,x=180,y=0,l=1]
shade a

let a3 = 1000
shade a

use gtbc011
let a3 = temp[k=1]
shade a                   ! DELIBERATE ERROR

let a = add_9(a1,a2,1000,a1,a2,1000,a1,a2,1000)
shade a

set mode/last ignore_errors
