[gradsusr] Convert string to numeric?

[Matt Bunkers - NWS Rapid City]

Hi,

I have a text file with numbers that I'm reading into GrADS and then I want
to perform calculations with them.  However, the numbers I'm reading won't
work and I get an error that says I have non-numeric args to a numeric
operations, even though when I print my variable it shows 2.19.

I've tried both of these options:

'define BUFratio='BUFawips'/'BUFqpe''
BUFratio='BUFawips'/'BUFqpe'

Is there a command I can use to convert my "2.19" string to a number that
can be used in calculations?

Thanks,

-- Matt
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