cg@myrias.UUCP (02/18/87)
Is this the correct group for this?
Anyway, a friend and I were playing with my new HP-28C calculator this
weekend and played with the graphics a bit. After rearranging our program
a bit, the result is one which will plot a histogram of any column of the
statistics matrix. Put the column number on the stack and let it go.
In the following, '$' means the sigma character.
HIST:
<< -> c << PPAR 's' STO
(1,0) PMIN
N$ MAX$ R->C PMAX
CLLCD
1 N$ FOR i
i 0
'$DAT' i c 2 ->LIST GET
FOR y DUP y R->C PIXEL NEXT
DROP
NEXT
s 'PPAR' STO 's' PURGE >> >>
Great fun!!
Chris Gray {ubc-vision,sask,ihnp4}!alberta!myrias!cg