Creating data set for location Problem
2 views (last 30 days)
Show older comments
I want to create an array of 150*150. filled with randomly generated, 15 cells for Distribution center i(1 to 15) and 50 cells for customer j (1 to 50). Then i want to calculate euclidean distance for each customer from each distribution center. Is there any function for creating the mentioned array of 150*150. Any help will be appreciated as I am totally new to this MATLAB world. Thanks!!!
0 Comments
Answers (1)
Walter Roberson
on 30 May 2012
centers = -(1:15); %flag them with negative
customers = 1:50; %let them be positive
numzero = 150 * 150 - length(centers) - length(customers); %# empty places
to_scramble = [centers, customers, zeros(1,numzero));
neworder = randperm(length(to_scramble));
scrambled = to_scramble(neworder);
filledmatrix = reshape(scrambled, [150, 150]);
If you really needed a built-in routine to do this, you could construct everything up to to_scramble and then use a routine from the stats toolbox to do sampling without replacement with to_scramble as the population space, and then you would reshape() that result. Hardly seems worthwhile, considering you could combine
scrambled = to_scramble(randperm(length(to_scramble)));
and not have the overhead of the stats routine.
2 Comments
See Also
Categories
Find more on Numeric Types in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!