How can I create an dynamically increasing array to store positions?
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load iris.dat
for i:size(iris,2)-1
if (iris(:,i)==iris(1,1)
%store the row number in a dynamically increasing array (could be a cell array, or any %other matlab structure
%Please explain in simple terms. I am new to matlab
1 个评论
mizuki
2016-9-18
Do you want to find elements in iris(:,1) (the first column) that are same as iris(1,1)? If so, the following code can:
load iris.dat
j = 1;
for i=1:size(iris,1)-1
if ( iris(i,1)==iris(1,1) )
idx(j) = i; % store the row# which has the same element with iris(1,1)
j = j+1;
end
end
I do not recommend you to make a code which includes the variable that increases the size of the variable dynamically because it takes much more time than creating a variable in one time like:
find(iris(:,1) == iris(1,1))
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