Matlab的输出太多 [英] Matlab too many outputs

问题描述

程序myfile.m读取一个txt文件，该文件总共包含25个名称和数字，例如

The program myfile.m reads a txt file that contains a total of 25 names and numbers like

例如:

约翰·唐格拉斯15986

John doughlas 15986

Filip duch 357852

Filip duch 357852

，依此类推.

程序将它们转换为

15986 Doughlas John
357852 duch Filip 

这是没有功能的，我得到了太多的输出.

This is without function, with it I get too many outputs.

Error message:
Error using disp
Too many output arguments.

Error in red4 (line 26)
  array = disp(All);

以下原始代码:

function array = myfile(~) 
if nargin == 0 
dirr = '.';
end
answer = dir(dirr);  
k=1;
while k <= length(answer) 
    if answer(k).isdir 
        answer(k)=[]; 
    else
        filename{k}=answer(k).name;
        k=k+1;
    end
 end
chose=menu( 'choose file',filename);
namn = char(filename(chose));  
fid = fopen(namn, 'r');    
R = textscan(fid,'%s %s %s');  
x=-1;                                            
k=0;                                               
while x <= 24                                  
      x = k + 1;                                    
      All = [R{3}{x},'   ',R{1}{x},' ',R{2}{x}];
      disp(All)                                     
      k = k + 1;                                   
end                                                
fclose(fid);

现在我从诸如功能但我无法通过函数获得如上结果.

Now I have got many good answers from people and sites like functions but I cant get the results like the above with function.

我尝试将它们结合起来并得到一些结果:

I have tried combining them and got some results:

y = 15986 & [a,z,b] = myfile
y = 25 & myfile = x
y = numbers name1,2,3,4 and so one & myfile = fprintf(All)
y =                       & I used results().namn, 
numbers name 1            & results().id, results().lastname
y =
numbers name 2 and so on.

我想要的结果是:

y = myfile
y =
15986 Doughlas John
357852 duch Filip 

---

更新:像Eitan T所说的那样进行更改，但没有得到上面的结果.

---

update: Change it like Eitan T said but did't get the result like above.

得到结果:

'约翰·唐格拉斯15986'

'John doughlas 15986'

'Filip duch 357852'

'Filip duch 357852'

function C = myfile()                            
 if nargin == 0 
    dirr = '.';
end
answer = dir(dirr); 
k=1;
while k <= length(answer)   
    if answer(k).isdir 
        answer(k)=[]; 
    else
        filname{k}=answer(k).name;
        k=k+1;
    end
end
chose=menu( 'choose',filname); 
name = char(filname(chose)); 
fid = fopen(name, 'r');
C = textscan(fid, '%s', 'delimiter', '');
C = regexprep(C{1}, '(\w+) (\w+) (\w+)', '$3 $2 $1');
fclose(fid); 

推荐答案

为什么要使用循环?用textscan一次读取行，并使用regexprep操纵单词:

Why use loops? Read the lines at once with textscan and use regexprep to manipulate the words:

fid = fopen(filename, 'r');
C = textscan(fid, '%s', 'delimiter', '');
C = regexprep(C{1}, '(\w+) (\w+) (\w+)', '$3 $2 $1')
fclose(fid);

结果是一个单元格数组C，每个单元格都存储一行.对于您的示例，您将获得2×1的单元格数组:

The result is a cell array C, each cell storing a line. For your example, you'll get a 2×1 cell array:

C = 
    '15986 doughlas John'
    '357852 duch Filip'

我不确定您要怎么做，但是如果您提供更多详细信息，我可以进一步改善答案.

I'm not sure what you want to do with it, but if you provide more details I can improve my answer further.

希望这会有所帮助！

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