Problem with file text size in bytes

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wissa amer
wissa amer 2013-6-30
in GUI MATLAB HOW I CAN FIND THE SIZE OF THE FILE TEXT AFTER IMPORT THIS FILE BY THIS CODE :
[file,path] = uigetfile('*.txt','Select file');
var=strcat(file,path);
file=dlmread(var);
------------------------------
and i used this code to read the file text
[filename,pathname] = uiputfile( ...
{'*.txt','save as'});
var=strcat(pathname,filename);
dlmwrite(var,x);
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Jan
Jan 2013-7-1
@wissa amer: It is recommended to avoid using "path" as name of a variable, because this is an important Matlab command. Such a shadowing can cause serious troubles during debugging. The same concerns to "var", which calculates the variance.
Instead of var=strcat(file,path) the function fullfile is safer:
[fileName, pathName] = uigetfile('*.txt','Select file');
file = fullFile(pathName, fileName); % Swapped arguments!

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回答（1 个）

Chandrasekhar
Chandrasekhar 2013-6-30
编辑：Chandrasekhar 2013-6-30
use the command
a= dir('complete path of the file')
example: F:\Matlab\text.txt
It gives a structure with bytes as one of the field
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Walter Roberson
Walter Roberson 2013-7-1
What happens when you try to do it in your GUI?
Jan
Jan 2013-7-1
Explicitly:
dirList = dir(fullfile(pathName, fileName));
fileSize = dirList.bytes;

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