Create a folder and save it with a field name

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Daniel Boateng 2019-3-12

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https://ww2.mathworks.cn/matlabcentral/answers/449661-create-a-folder-and-save-it-with-a-field-name

回答： dpb 2019-3-12

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I have a matlab structure called DATA and in this structure I have a field Site and value entry

I want to create a folder Called newfolder_entry. Where Site is a field in the matlab structure.

Please how do I do this.

Name_Project_folder = [C:\PROJECTFILES\Code'\..\Projects'];
cd(Name_Project_folder)
mkdir([Name_Project_folder '\newfolder_DATA.Site']) 

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Geoff Hayes 2019-3-12

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Daniel - which folder are you trying to save the data into? You have

Name_Project_folder = [C:\PROJECTFILES\Code'\..\Projects'];

but I'm not sure if you intend it to be the above (missing single quotes) or something like

Name_Project_folder = 'C:\PROJECTFILES\Code\..\Projects';

or

Name_Project_folder = 'C:\PROJECTFILES\Projects';

Daniel Boateng 2019-3-12

I am saving it in this folder. Sorry for the typo

Name_Project_folder = 'C:\PROJECTFILES\Projects';

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Answer 1

dpb 2019-3-12

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Would be easier to see the actual struct via

whos DATA

to ensure we follow the actual construction, but basically if Data.Site returns a char() string 'Entry' then

newfoldername=['newfolder_' DATA.Site];
mkdir(fullfile(Name_Project_folder,newfoldername) )

The above is, of course, subject to many possible errors in interpretation of what you really have and what you intend...but it's a first guess from what we have been given.

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Daniel Boateng 2019-3-12

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newfoldername=['newfolder_' DATA.Site];
mkdir(fullfile('C:\MicrogridDesignTool\Projects',newfoldername'))

the error message I get:

Error using fullfile (line 103)
Char inputs with multiple rows are not supported.

dpb 2019-3-12

As far as the message goes regarding missing arguments, we would need to see the result of the fullfile() call for the newdir parameter in order to know if that form is what is triggering the need for the optional parendir parameter.

That would also entail knowing the current working directory at the time you're trying to execute the call...

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Answer 2

dpb 2019-3-12

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>> newfoldername=['newfolder_' DATA.Site];
mkdir(fullfile('C:\MicrogridDesignTool\Projects',newfoldername'))
Error using fullfile (line 90)
Char inputs with multiple rows are not supported. 
>> newfoldername
newfoldername =
    'newfolder_entry'
>> newfoldername'
ans =
  15×1 char array
    'n'
    'e'
    'w'
    'f'
    'o'
    'l'
    'd'
    'e'
    'r'
    '_'
    'e'
    'n'
    't'
    'r'
    'y'
>> 

You've got an extra quote at the end of variable newfoldername that transforms it to a column vector...get rid of that.

> (fullfile('C:\MicrogridDesignTool\Projects',newfoldername))
ans =
    'C:\MicrogridDesignTool\Projects\newfolder_entry'
>> mkdir(fullfile('C:\MicrogridDesignTool\Projects',newfoldername))
>> dir c:\MicrogridDesignTool\Projects\newfolder_entry\
.   ..  
>> 