Reading a string and retriving data from the string.

I have a str='length=12_height=231_width=123' I want to be able to get the three variables, length=12 height=231 width=123 I have some problems reading because I have many different such strings for example, str1='length=122_height=21_width=12.3' where the variable keeps changing and a decimal place i involved. How will I be able to do that? Please advise and thanks in advance!

Answer 1

[Friedrich]

Hi,

I would use textscan and set the delimiter option to '_'

out = textscan(str1,'%s %s %s','delimiter','_')

After that you will have each variable for his own. But if you really want to create this strings as a variable and assignn the given value, I would do the following

ex_str = strrep(str1,'_',';')
eval(ex_str)

Answer 2

[cr]

Another Way:

n = textscan(str,'%s', 'delimiter', '_=');
n = str2double(n{1}(2:2:end))

[Oleg Komarov]

'%s%f%s%f%s%f'