vector of random natural numbers to matrix

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Thomas Kozinski
Thomas Kozinski on 12 Mar 2021
Answered: David Hill on 12 Mar 2021
Hello, I have a problem with the task, if someone could direct me / tell me how to do it
I have to do:
Create a 100-element vector of random positive numbers and then write it as a matrix with the number of rows equal to the number of unique numbers in the vector and 100 columns
and then to each element of the original vector encode its value as 1 in the field with index equal to the value of this element (one-hot encoding).
Thanks in advance!!!
  2 Comments
Adam Danz
Adam Danz on 12 Mar 2021
hint:
doc rand
doc randi
doc ismember
doc isequal

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Accepted Answer

David Hill
David Hill on 12 Mar 2021
a=randi(100,1,100);
b=unique(a);
c=zeros(length(b),100);
for k=1:length(b)
c(k,:)=a==b(k);
end

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