Index

If this argument is greater than null the corresponding element will be drawn. If you select the first element several times and use the auto-initialization mode, you will draw all elements from the set in reverse order as they have been defined beginning with the first, e.g.: 1st Nth (N-1)th (N-2)th and so on.

0 Random draw

n Selection of the n-th element

 Example for drawing random elements from set

PICTURE RndPic N ; Dummy picture used as destination object

PICTURE A N
PICTURE B N
PICTURE C N

SET abc V
A B C

; If this trial is executed many times, all letters are displayed in random order

TRIAL SelectPic
DE abc RndPic 2 0          ; Draw random element and assign it to RndPic
RK ResKeys 1500          ; Record Keys, (MaxRt = 1500 ms)
SP RndPic MidPos 1 0 1          ; Show random picture until response or MaxRt

PICTURE Red   N
PICTURE Green N
PICTURE Blue N

COLOR CRed      R 100    0    0
COLOR CGreen    R    0 100    0
COLOR CBlue     R    0    0 100

COLOR RndColor R    0    0    0

SET Pictures V Red   Green   Blue
SET Colors   V CRed CGreen CBlue

;This trial displays a random color word in the corresponding color

TRIAL ParallelDraw
DE Colors RndPic          ; Draw random picture
DE Colors RndColor 0 1 1          ; Select parallel color
SP RndPic   MidPos 1 1000 0 RndColor          ; Show random picture in corresponding color