Save Function and uisave are not working properly.

Can you please tell me why the following codes are not working?

The functional form of save is not working right, especially when I am trying to specify a name of the file while saving it.

I have tried to extract the filenames from the user defined names using the following code.

Filename = Name(~isspace(Name));

Then I have tried using the following codes to save the file.

Filename = [Filename{:} '.mat'];
uisave({Name, x, y ,z}, Filename);

Another way I tried...

save(Filename, {Name, x, y, z});

The save function is working when the filename specified is static such as

save('all_variables.mat', {Name, x ,y ,z});

Please tell me what am I doing wrong here. What should I do to save the variables along with the user specified dynamic names? And why am I getting an error message in the above pictures? Should it not be saving the variables dynamically instead of showing an error message dialog box?

Answer 1

[dpb]

Syntax issues...

>> Name='A long File Name';         % just something to follow your lead...
>> Name=Name(~isspace(Name));       % hadn't ever thought of doing this, but does kill embedded blanks
>> dir AlongFileName.*              % prove it wasn't already there...
No matches for pattern 'AlongFileName.*'.

% here's the problem -- the variable name must be char() string; you had the variable itself
>> save(Name,'x')
>> dir AlongFileName.*              % now there is a file there
AlongFileName.mat  
>> whos -file AlongFileName.mat     % whos there -- that's the variable from the workspace here...
  Name      Size             Bytes  Class     Attributes

  x         9x3x3              648  double              
>>

Similar issues with uisave (altho I've never used it). It is different from save however, in that it does accept/require the cell array of variables to have more than one; save will NOT accept that form--

>> save(Name,{'x','xx'})
Error using save
Must be a string scalar or character vector. 
>> 

Instead, it uses a list of variable names...

>> whos x*
  Name      Size             Bytes  Class     Attributes

  x         9x3x3              648  double              
  xx        1x3                 24  double              
  xy        4x5                 40  char                

>> save(Name,'x','xx')
>> whos -file AlongFileName.mat
  Name      Size             Bytes  Class     Attributes

  x         9x3x3              648  double              
  xx        1x3                 24  double              

>>