hi .. i have some features stored in a .mat file, and i want to concatenate numbered image names( without their extension) to the same .mat file. so that i can sort image names along with sorting its numerical features.. how to do plz help? say eg: if a.mat contains features as follows
12 2.3344 3.22 4.22 123.jpg
as i have written this example the mat file contains 5 columns but in fifth column, we have numbered name of an image including its extension i.e. .jpg. how to remove that extension & store only 123 as its name.