facing problem in reshaping the column matrix please help

2022 3 4
1 个回答
更新时间：2022 3 5
16 次查看（30 天）

0 个投票

clc;
close all;
clear all;
printlevel=3;
n=input('n=');
for kk = 0:n
for ii = 0:n
for jj = 0:n
E = ((nchoosek(n,ii))/(2*n+kk+1))*((nchoosek(n,jj))/(nchoosek(2*n+kk,ii+kk+jj)))
end
ee(kk+1,ii+1) = reshape(E,n+1,1)
end
end

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回答（1 个）

Jan
Jan 2022-3-4
编辑：Jan 2022-3-4
Ran in:

1 个投票

Ran in:
Maybe you mean:
n = 3;
E = zeros(n+1, 1); % Pre-allocate in wanted dimension instead of reshape
ee = zeros(n+1, n+1, n+1); % Preallocate!
for kk = 0:n
for ii = 0:n
for jj = 0:n
E(jj + 1) = (nchoosek(n,ii) / (2*n+kk+1)) * ...
(nchoosek(n,jj) / nchoosek(2*n+kk, ii+kk+jj));
% ^^^^^^^^
end
ee(kk+1, ii+1, :) = E;
% ^ E is a vector, you cannot assign it to the
% scalar ee(kk+1,ii+1)
end
end
ee
ee =
ee(:,:,1) = 0.1429 0.0714 0.0286 0.0071 0.0179 0.0179 0.0107 0.0036 0.0040 0.0060 0.0048 0.0020 0.0012 0.0024 0.0024 0.0012 ee(:,:,2) = 0.0714 0.0857 0.0643 0.0286 0.0179 0.0321 0.0321 0.0179 0.0060 0.0143 0.0179 0.0119 0.0024 0.0071 0.0107 0.0083 ee(:,:,3) = 0.0286 0.0643 0.0857 0.0714 0.0107 0.0321 0.0536 0.0536 0.0048 0.0179 0.0357 0.0417 0.0024 0.0107 0.0250 0.0333 ee(:,:,4) = 0.0071 0.0286 0.0714 0.1429 0.0036 0.0179 0.0536 0.1250 0.0020 0.0119 0.0417 0.1111 0.0012 0.0083 0.0333 0.1000

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