[ncl-talk] Is string numeric?

[Carl Schreck]

Is there a function that would tell me if a string is a numeric? i.e.,
contains no letters and "tofloat" won't give a warning on it?

If not, has anyone already made one? Thanks!

e.g.:
str_is_numeric( "215" ) => True
str_is_numeric( "21.5" ) => True
str_is_numeric( "21e5" ) => True
str_is_numeric( "21N5" ) => False

Carl

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* Cyclone <http://www.cyclonecenter.org/>*Center.org
<http://www.cyclonecenter.org/>   *Carl J. Schreck III, PhD*
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