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2008 Oct 11
2
R vs SPSS contrasts
Hi Folks,
I'm comparing some output from R with output from SPSS.
The coefficients of the independent variables (which are
all factors, each at 2 levels) are identical.
However, R's Intercept (using default contr.treatment)
differs from SPSS's 'constant'. It seems that the contrasts
were set in SPSS using
/CONTRAST (varname)=Simple(1)
I can get R's Intercept to match