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Extracting decimal number from string

Sat, 03/14/2015 - 01:43 am

I am trying to extract decimal number from string. The string always looks like "+/- 0.01093" and the i need at least 4 digits after the decimal dot.
I am trying with sscanf command :

<br />

                        printf "Location error for peak: %g is : %s \r",  peaknumber, ErrorString<br />

            variable  FPError<br />

            sscanf ErrorString , "%e" , FPError<br />

            printf "Location error  in number :  %g \r", FPError<br />

            <br />

                       // ErrorString = string value in error example +/- 0.018739<br />

                       // FPError = numeric value for error<br />

<br />

I have tried with %d , %u tags but it didn't work. Always the numeric variable has zero value (indicating it is taking only the value before the decimal).
Should I try SplitString command.

ankit7540

Solved :

Using sscanf with a format expression does the job.

string formatString = "%s %f" 

sscanf Errorstring, formatString , v1, FPError

:-)

March 14, 2015 at 02:52 am - Permalink