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removing letters from alphanumeric data

• To: mathgroup at smc.vnet.net
• Subject: [mg48377] removing letters from alphanumeric data
• From: charles.koehler at marquette.edu (Charles Koehler)
• Date: Wed, 26 May 2004 02:41:30 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Hello,

I am able to find and read in from a data header a particular variable
value, my difficulty is in my attempt to drop the letters that follow
the number I need to retrieve.

For example, I'll use Find to locate the position of the variable
"Temperature" and then store the value that follows it, however there
is generally a "C" or something after the temperature value, e.g.
"45C".  All I need is the value 45.

Also, If there is no entry at all is there a way to put a placeholder
value in it place, instead a Null.

Sincerely,

Charles Koehler

• Follow-Ups:
  • Re: removing letters from alphanumeric data
    • From: János <janos.lobb@yale.edu>