subarray

Extracts a subarray from an array. Useful for function outputs.

現在この提出コンテンツをフォロー中です。

extracting a subarray from an array is simple:

a = 1:10;
a(4:8) %returns elements 4-8.

but sometimes, I have a function that returns an array, but I only want a subset of that array:

a = foo(x,y,z);
b = a(2,9:end);

Here 'a' is a temporary variable, polluting my workspace. Hence subarray:

b = subarray(foo(x,y,z),2,'9:end');

SUBARRAY should handle all the normal indexing cases (output of FIND, ranges, unspecified dimensions) just like the first example. The only exception is the 'end' keyword, where we have to pass in a string and EVAL it.

I tip my hat to Garret Euler of SUBMAT and SUBMAT_NOEVAL.

引用

Peter Mao (2026). subarray (https://jp.mathworks.com/matlabcentral/fileexchange/24457-subarray), MATLAB Central File Exchange. に取得済み.

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1.1.0.0

prev version wasn't handling 1xn matrices in the expected way (it wasn't skipping the singeton dimensions). usage in functions seems to be well behaved now, provided one uses quotes around :'s and "end"'s

1.0.0.0