Jon pointed out off-list that ABS is not needed. So you could simplify that to:
COMPUTE rprime = 0.5*ln((1+r)/(1-r)).
Bruce Weaver wrote
Do you mean point-
biserial, by any chance? ;-)
COMPUTE rprime = 0.5*ln(abs((1+r)/(1-r))).
Anthony James wrote
Dear colleagues,
I have the point bacterial correlations for 40 test items. I
want to transform them to Fishers z.
They are in one column, as a variable, in SPSS. I want to
make them normally distributed using Fishers z transformation.
How can I do that in SPSS?
Can I do it by pointing and clicking? If not, I’d be thankful if you provided the syntax.
Regards
Anthony
--
Bruce Weaver
bweaver@lakeheadu.ca
http://sites.google.com/a/lakeheadu.ca/bweaver/"When all else fails, RTFM."
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