How to give an option to user of where to save the generated file

How to give an option to user of where to save the generated file, right now it is storing those files where .m files are there, but i want to give user the flexibility of storing those files where ever they want, i have tried the following code and its not working. It is opening the that browse location window but the output is not storing there, it still stores at, where .m files are.

downloadsFolder = strcat('C:\Users\',getenv('username'),'\Downloads');

SaveDir = uigetdir(downloadsFolder,'Select folder to save newly created Excel files to...');

while SaveDir == 0

SaveDir = uigetdir(downloadsFolder,'Select folder to save newly created Excel files to...');

dlmwrite('PRM.txt',m1,'delimiter','\t','-append','newline','pc');

dlmwrite('PRM.txt',ThrTbl,'delimiter','\t','-append','newline','pc');

 end

Answer 1

[Stephen23]

Just use fullfile like this, each time you call any function that reads/writes files:

dlmwrite(fullfile(SaveDir,'PRM.txt') ,...)

https://www.mathworks.com/help/matlab/matlab_env/specify-file-names.html

[raghavendra kandukuri]

doesn't work

[Steven Lord]

Show us how you've modified your code to make use of fullfile as Stephen suggested.

Also please clarify exactly what "doesn't work" means.

• Does it not place the files in the selected directory?
• Does it throw an error? [If so, what is the full text, everything in red, of the error message?]
• Does it do something else? [If so, please explain in detail.]

[raghavendra kandukuri]

Its giving the following error:

Expression or statement is incorrect--possibly unbalanced (, {, or [.

this is the code

downloadsFolder = strcat('C:\Users\',getenv('username'),'\Downloads');

           SaveDir = uigetdir(downloadsFolder,'Select folder to save newly created Excel files to...');

          while SaveDir == 0

               SaveDir = uigetdir(downloadsFolder,'Select folder to save newly created Excel files to...');

dlmwrite(fullfile(SaveDir,'PRM.txt',m1,'delimiter','\t','-append','newline','pc') ,...);

dlmwrite(fullfile(SaveDir,'PRM.txt',ThrTbl,'delimiter','\t','-append','newline','pc') ,...);

           end

[raghavendra kandukuri]

And if i use this, the file is not storing in any location, not in where .m files are and nor the specified location

dlmwrite(fullfile(SaveDir,'PRM.txt'),m1,'delimiter','\t','-append','newline','pc');

dlmwrite(fullfile(SaveDir,'PRM.txt'),ThrTbl,'delimiter','\t','-append','newline','pc');

[raghavendra kandukuri]

Now it works:

downloadsFolder = strcat('C:\Users\',getenv('username'),'\Downloads');

           SaveDir = uigetdir(downloadsFolder,'Select folder to save newly created Excel files to...');

          while SaveDir == 0

               SaveDir = uigetdir(downloadsFolder,'Select folder to save newly created Excel files to...');

          end

           dlmwrite(fullfile(SaveDir,'PRM.txt'),m1,'delimiter','\t','-append','newline','pc');

           dlmwrite(fullfile(SaveDir,'PRM.txt'),ThrTbl,'delimiter','\t','-append','newline','pc');

[Stephen23]

@raghavendra kandukuri: remember to accept the answer that helped you to resolve your original question!

Answer 2

[Image Analyst]

Try this:

% Get the name of the file that the user wants to save.
% Note, if you're saving an image you can use imsave() instead of uiputfile().
startingFolder = userpath % Or "pwd" or wherever you want.
defaultFileName = fullfile(startingFolder, 'PRM.txt');
[baseFileName, folder] = uiputfile(defaultFileName, 'Specify a file');
if baseFileName == 0
  % User clicked the Cancel button.
  return;
end
fullFileName = fullfile(folder, baseFileName)
dlmwrite(fullFileName, .......etc.