[R] modifying a vector

Marc Schwartz mschwartz at medanalytics.com
Sun Jun 30 20:22:01 CEST 2002

> -----Original Message-----
> From: owner-r-help at stat.math.ethz.ch
[mailto:owner-r-help at stat.math.ethz.ch] On
> Behalf Of Frank E Harrell Jr
> I'll second that.  And we've already seen the big trouble that can be
caused by "="
> (e.g., mistyping sex=='male' as sex='male') that was not envisioned by
> developers.  -Frank Harrell
> --

I'll echo and support Dr. Harrell's comments as I have been burned
several times on my own typos paralleling his example.

It has cost me a sufficient amount of time that I have re-configured the
color syntax highlighting in my editor such that the assignment
operators (ie. "<-" and "=") are colored in bold red to differentiate
them from the equality/inequality operators (ie. "==", "<", "<=", etc.)


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