RE: [R] modifying a vector

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From: Marc Schwartz (mschwartz@medanalytics.com)
Date: Mon 01 Jul 2002 - 04:22:01 EST 

Message-id: <001c01c22063$08930860$0201a8c0@MARC>

> -----Original Message-----
> From: owner-r-help@stat.math.ethz.ch
[mailto:owner-r-help@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
the
> 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.)

Marc

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