textscan

[Roland]

Hello!

i want textscan to recognise my string '(1,500)' as the number 1500
i dont really know how to get rid of the brackets and the comma

number=textscan('(1,500)',??)

any ideas?

Roland

[Walter Roberson]

Sorry, Matlab does not support any way to do that in textscan() in a single
step. If you have a file that uses comma as the decimal grouping character
then it is recommended that you pre-process the file to remove the commas
before attempting to parse the file.

[exosceleton]

How about this one:

number=textscan(strrep('(1,500)',',',''),'(%f)')

[Roland]

Walter Roberson <robe...@hushmail.com> wrote in message <i5ov2b$p5i$1...@canopus.cc.umanitoba.ca>...

sometimes, telling that one function is not capable of doing something also leads to the solution, i use now:

oldstring=('1,500')
modstring=strrep(oldstring, ',' , '')
number=str2num(modstring)

thanks!

[Roland]

"exosceleton" <exosc...@hotmail.com> wrote in message <i5ov3v$9r7$1...@fred.mathworks.com>...

> How about this one:
>
> number=textscan(strrep('(1,500)',',',''),'(%f)')

thanks exosceleton, thats perfect!

[Walter Roberson]

str2num() uses eval() to evaluate the string. That is relatively slow and is a
security risk. str2double() or one of the formatted input routines such as
sscanf() or textscan() are safer and potentially much faster.