exist function check file

I am trying to use

 checkfile = exist(inputdlg('Enter the name of the file you wish to analyze input with document type','File name',1),'file');

but it doesn't work

I also tried

 filename = (inputdlg('Enter the name of the file you wish to analyze input with document type','File name',1);
 exist = (filename,'file')

and that doesn't work either

Answer 1

[Stephen23]

The inputdlg help states clearly that the function's "returned variable answer is a cell array", and the exist help clearly states that its input must be a "character vector". So you need to get your character vector out of the cell array and provide it to exist, for example:

 >> C = inputdlg('filename:');
>> exist(C{1},'file')==2
ans =
     1

or even better would be to use the uigetfile dialog box:

>> [FileName,PathName] = uigetfile('*.m')
FileName =
inner.m
PathName =
C:\Temp\TestDir