looping through files, filenames varying by number in name gives num2str error

Hello everyone, so I wanna do this really simple loop:

for i = 5:9

A = squeeze(nc_varget('/home/forsker1/Documents/GL2/2001-2010/DMI-HIRHAM5_GL2_2001_' num2str(i) '_maskgreenlandglacier.nc','tas'));

%do something

end

but it keeps underlining the num2str(i) and the second last bracket, with the note "invalid syntax, possibly )]} missing". And when I run it I get the error "unexpected Matlab expression". I'm sorry,I know this should be so easy but I just don't get what I'm doing wrong here and it drives me crazy.

Answer 1

[Guillaume]

You need to tell matlab that you're concatenating strings, thus wrap your concatenation in []:

['/home/forsker1/Documents/GL2/2001-2010/DMI-HIRHAM5_GL2_2001_' num2str(i) '_maskgreenlandglacier.nc']

or in my opinion, better yet, use sprintf:

A = squeeze(nc_varget(sprintf('/home/forsker1/Documents/GL2/2001-2010/DMI-HIRHAM5_GL2_2001_%d_maskgreenlandglacier.nc', i),'tas'))

[Marilena Geng]

awesome, thank you! Made my day :)

Answer 2

[KSSV]

for i = 5:9

A = squeeze(nc_varget(strcat('/home/forsker1/Documents/GL2/2001-2010/DMI-HIRHAM5_GL2_2001_', num2str(i), '_maskgreenlandglacier.nc'),'tas'));

%do something

end