HP 33s - Manual (Page 264)

16–4 Statistics Programs
Program Lines:
(In RPN mode)
Description
'
Sets the loop counter to zero for the first input.
Checksum and length: 5AB9 24
$
$ Defines the beginning of the input loop.
$
Adjusts the loop counter by one to prompt for input.
$
-
$
! % Stores loop counter in X so that it will appear with the
prompt for X.
$
"! % Displays counter with prompt and stores X input.
$
@
If flag 0 is set . . .
$
. . . takes the natural log of the X–input.
$
! Stores that value for the correction routine.
$
"! & Prompts for and stores Y.
$
@ If flag 1 is set . . .
$
. . . takes the natural log of the Y–input.
$
!
$
$
´- Accumulates B and R as x,y–data pair in statistics registers.
$
! $ Loops for another X, Y pair.
Checksum and length: C95E 57
"
" Defines the beginning of the "undo" routine.
"
Recalls the most recent data pair.
"
"
´. Deletes this pair from the statistical accumulation.
"
! $ Loops for another X, Y pair.
Checksum and length: AB71 15
Defines the start of the output routine
T Calculates the correlation coefficient.
! Stores it in R.
#$ Displays the correlation coefficient.
E Calculates the coefficient b.
@ If flag 1 is set takes the natural antilog of b.
H
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