Question on the use of function 'load' to open a *.mat file

I have multiple *.mat files. So the filename is generated in a loop as below:

File = ['hb', num2str(A(i)), '.mat'];

When I tried to load it by doing:

load File;

I got the below error:

Error using load
Unable to read file 'File': no such file or directory.

Error in Combine_matfiles (line 17)
    load File;

I am 100% sure the generated filename, File is correct, and the file is right there in the same directory. I can open it by typing load with the file name in the command window without any problem.

What did I do wrong? Thanks.

Answer 1

[James Tursa]

The statement:

load File

is equivalent to:

load('File')

What you want to do is

load(File)

This is a general MATLAB behavior for calling functions without using parentheses, not specific to just the load function. E.g., in general

myfunction thisinput thatinput

is equivalent to

myfunction('thisinput','thatinput')

[Leon]

It works. Thank you so much for the help!