Assigning file name as variable name

3 次查看（过去 30 天）
Burak Dermenci
Burak Dermenci 2015-7-7
评论： Image Analyst 2015-7-7
Hi everyone,
I would like to write a program. The program must ask users to enter the name of the text we're importing and change the variable name each time. The code I wrote is below:
name = input('Enter the name of a file: ','s');
s=importdata('name.txt');
data=s.data
t_name=data(:,1);
mass_name=data(:,4);
dtg_name=data(:,7);
[ax,p1,p2]=plotyy(t_name,mass_name, t_name,dtg_name,'plot','plot')
I have mainly 2 problems. Importing file from the code generated by input command and assigning t_name, dtg_name etc. variables each time. How can I fix it?
Thank you for your help

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2015-7-7
Try this:
% Have user browse for a file, from a specified "starting folder."
% For convenience in browsing, set a starting folder from which to browse.
startingFolder = 'C:\Program Files\MATLAB';
if ~exist(startingFolder, 'dir')
% If that folder doesn't exist, just start in the current folder.
startingFolder = pwd;
end
% Get the name of the file that the user wants to use.
defaultFileName = fullfile(startingFolder, '*.*');
[baseFileName, folder] = uigetfile(defaultFileName, 'Select a file');
if baseFileName == 0
% User clicked the Cancel button.
return;
end
fullFileName = fullfile(folder, baseFileName)
s=importdata(fullFileName);
  2 个评论
Burak Dermenci
Burak Dermenci 2015-7-7
This is not what I asked but exactly what I want.
Thank you for your reply
Image Analyst
Image Analyst 2015-7-7
If the importdata() is not working with your data, then you can try another input option like csvread(), textscan(), or whatever, or else write your own custom reading function.

请先登录，再进行评论。

更多回答（1 个）

Titus Edelhofer
Titus Edelhofer 2015-7-7
Hi,
you should use name as a variablename to importdata:
name = input('Enter the name of a file: ','s');
s=importdata(name);
Titus
  1 个评论
Burak Dermenci
Burak Dermenci 2015-7-7
I tried this and it gives error:
Unable to load file.
Use TEXTSCAN or FREAD for more complex formats.
Caused by:
Error using fread
Invalid file identifier. Use fopen to generate a valid file identifier.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Debugging and Analysis 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by