How I define the variable B in a function [A, B] = ReadHypercube(strcat(pathname,filename)); ?

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Surya Gnyawali 2018-4-25

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https://ww2.mathworks.cn/matlabcentral/answers/397406-how-i-define-the-variable-b-in-a-function-a-b-readhypercube-strcat-pathname-filename

评论： Rik 2018-4-26

[filename, pathname, indx] = uigetfile( ...
{'*.hdr','Image Cube(*.bil)';
   '*.*',  'All Files (*.*)'},'Pick a file','file path'); 
if indx == 1
    [A, B] = ReadHypercube(strcat(pathname,filename));
elseif indx == 2

I will appreciate it. Thanks

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Surya Gnyawali 2018-4-26

编辑：Stephen23 2018-4-26

在 MATLAB Online 中打开

Hi Rik,

[A, B] = ReadHypercube(strcat(pathname,'.bil'));

This arises when I try to process cubical data set (hyperspectral).This function runs well but when I run another piece of code

%Copy wavelength data into array
hyperdata=zeros(size(B,1), 4);
hyperdata(:,1)=B;
hyperdata(:,2)=B;

This gives me an error

Undefined function or variable 'B'

That's why I am trying to define 'B' as out put

Rik 2018-4-26

We have no idea what function you are trying to use/modify, so we can't help you. Based on the second block of code, I would guess that B is a columnar vector that contains the wavelengths of the hypercube, but we have no idea what your function does or how it would have to infer this vector.

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