Extracting a double from a text file

Hi everone,

I want to extract the number that in front of Volt[M/Y] from alarge Text file. the structure of the file is described bellow. After reading the files in matlab, i want to look for the numbers in front of Volt [M/Y]. I succeded reading the files, and i also tried to solve the task with the matlab function regexp:

Data= regexp(A,'M/Y]\s*\w*$','tokens');

I have a dificulty to write the aproppriate expression to save the right number. Could you plase give any hints?

Thank you

U I N

2.420 -28.87 3.0710

2.430 -30.82 2.1945

Volt [M/Y] -12.258812

U I N

700 -30.39 1.9684

900 -29.60 2.1034

Volt [M/Y] 100.05

Answer 1

[Mathieu NOE]

hello

my 2 cents suggestion (as I still struggle with regexp !)

 bs = split(fileread('data.txt'));
 values = bs(find(strcmp(bs,'[M/Y]')>0) + 1);

[Rica]

Thank you Mathieu. Great way to solve it. I learnt something new!

[Mathieu NOE]

My pleasure

still have to workout regexp !!