How can I call inside a function a file *.* ?

2017 11 3
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更新时间：2017 11 3
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I have a set of files with the same name and different extensions, let them be a.env, a.shd, a.arr . I have created a script which calls those files inside a function. Is it possible to set those files as variables so that i can use them whenever it is necessary? I have already used the function genvarname but only for the 'a'. I don't know what to do with the extensions. Can anyone help? Thanks in advance.

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I used the fileparts and uigetfile functions to store the filename as a variable and they worked. However when i call them inside a function i get error. For example :
%1st case
file='/home/raptor/Desktop/BELLHOP_LAB/Bellhop_results/Ray_trace/a.ray';
[filepath,name,ext]=fileparts(file);
plotray name; hold on
plotbty name; hold on
plotati name; hold off
%2nd case
shd_file=uigetfile('*.shd');
plotshd 'shd_file'; hold on
plotbty 'name'; hold on
plotati 'name'; hold off
In both cases the functions plotray, plotshd, ... do not recognize the filename stored in the variable but the variable.

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Walter Roberson
Walter Roberson 2017-11-3

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basename = 'a';
dinfo = dir( [basename, '.*'] );
filenames = {dinfo.name};
Now filenames is a cell array of existing file names all with the same basic name but with the different extensions.

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Thanks a lot for your response Walter. I will give it a shot.
Paschalis Garouniatis
编辑：Paschalis Garouniatis 2017-11-3
I tried your solution. However i still got the same problem. As I mentioned above let's say that the filename is a.env . And i need to plot the file with the function plotray or the function plotshd. Because the name 'a' may vary i created a script that reads the full name of the file (a.env) and in the first case i need only 'a' to appear and in the second case 'a.env' . When i say it may vary i mean that if i execute the whole program, i may give another name to the file so i need the matlab script to read the filename everytime. That's why i don't want to set the filename inside the matlab script.
Walter Roberson
Walter Roberson 2017-11-3
Calls such as
plotshd 'shd_file'; hold on
should be
plotshd(shd_file); hold on
Otherwise you are passing the literal string 'shd_file' to the routine instead of passing the content of shd_file
Is it possible to convert your code for the 1st case in which i don't need the extension of the file? For the second case that i checked it worked.
Walter Roberson
Walter Roberson 2017-11-3
%1st case
file='/home/raptor/Desktop/BELLHOP_LAB/Bellhop_results/Ray_trace/a.ray';
[filepath,name,ext]=fileparts(file);
plotray(name); hold on
plotbty(name); hold on
plotati(name); hold off
%2nd case
shd_file=uigetfile('*.shd');
plotshd(shd_file); hold on
plotbty(name); hold on
plotati(name); hold off

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