Apr 12, 2012 · I want to select a random element from a column, for example from Column 1 or Column 2 or Column 3. Would you help me with the code?

Use rand, randi, randn, and randperm to create arrays of random numbers.

Jan 7, 2022 · Just use randi to generate a random index over the length of A. No fancy toolboxes needed: etc. randi(A) does not work because the first argument of randi is the bound of the …

Jun 8, 2014 · I have an array of values and I need to frame an expression such that it chooses the value from the array automatically instead of me assigning a value from the array everytime. …

May 3, 2015 · Try C (randi (numel (C),1)) where randi (numel (C),1) will be your index if you need it later on. Consider adding that to your question. C = [1,2,3,4,5,4,4,5]; %// Example input. …

Dec 29, 2014 · In Matlab (Statistics Toolbox), randsample does exactly that: result = randsample(dataset, n, true); where n is the desired ouput size and true indicates sampling …

Jun 8, 2021 · There are a few ways to do it. For example, using randi to select in which position is the card that you will extract. I'm brand new to matlab. I'm not sure what you mean by that. …

Apr 26, 2025 · Selecting Random Rows From a Matrix: We can use the randi() function to select random rows from a given matrix. Syntax: randi(n) It gets random integers from the range 1 to …

Feb 1, 2013 · If your matrix is M then to pick a random element with uniform probability you can use randi: M(randi(numel(M)))

Jun 21, 2018 · I want to select a random element among the values which are lower than 50 from the third row, in other words, one of the 35s. I also want to obtain the column number of the …