Manli Yan wrote:
assume dependent variable y( continuous),independent variable x (
continuous),I try to categorize x with some interval,such that,those
intervals would has most significant different effect on y.
any one knows which method I should apply,I really need some hints,thanks
so much~
This is a dangerous practice. Unless you have mastered the bootstrap so
that you can accurately estimate the damage to the statistical
significance caused by such categorization, it is best to avoid this
altogether.
Frank
--
Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University
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