Save values in each iteration

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Ricardo Gutierrez 2019-8-20

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https://ww2.mathworks.cn/matlabcentral/answers/476905-save-values-in-each-iteration

评论： Ricardo Gutierrez 2019-8-20

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Hello !!!

Good Morning.

I have the following code:

----------------------------------------------------------------------

clc; clear; close all; short format
Ccl = 21; % Number of column elements
gene = 5; % Number of times the column is generated
for wl = 1: gen
    for kk = 1: Ccl
        minx1 = 0.2028;
        maxx1 = 1.0141;
        xx1 = (maxx1-minx1). * rand (1,1) + minx1;
        dx1 (kk) = xx1;
        dx1 = dx1 ';
    end
end

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This code randomly generates a vector of a column with 21 lines (21 X 1), but

I would like to keep the values of the 5 columns, this case the variable "gen" has 5

Normally the value of the "gen" variable can be 500.

Greetings and thanks.

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Answer 1

James Tursa 2019-8-20

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https://ww2.mathworks.cn/matlabcentral/answers/476905-save-values-in-each-iteration#answer_388371

编辑：James Tursa 2019-8-20

在 MATLAB Online 中打开

The loops aren't needed. E.g.,

Ccl = 21; % Number of column elements
gene = 5; % Number of times the column is generated
minx1 = 0.2028;
maxx1 = 1.0141;
dx1 = (maxx1-minx1). * rand (Ccl,gene) + minx1;

Then the syntax dx1(:,k) can be used to extract the k'th column.