how to generate random isotropic vectors using R?

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Generate vectors using R

I would like to ask,if some of You dont know any simple way to solve this kind of problem: I need to generate all combinations of A numbers taken from a set B (0,1,2...B), with their sum = C. ie if A=2, B=3, C=2: Solution in this case: (1,1);(0,2);(2,0) So the vectors are length 2 (A), sum of all its items is 2 (C), possible values for each of vectors elements come from the set {0,1,2,3} (maximum is B).

Answer:

z <- expand.grid(0:3,0:3) z[rowSums(z)==2, ] Var1 Var2 3 2 0 5 1 1 7 0 2 If you wanted to do the...

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Other solutions

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You're on the right track. First of all, notice this error your code: altitude(k)=altitude. You're telling...

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Racceee Girl <333 at Yahoo! Answers Mark as irrelevant Undo

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Let A,B be vectors in R{n}, so that formally A = {A_1, ... , A_n} B = {B_1, ... , B_n} A + B = { A_...

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There are a couple errors I see. Your x vector (x = [2;5;3;5]) is incorrect. As defined earlier the...

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I used class for doing this vectorsHere v1 and v2 were two vectors provided by user and cross_p is the...

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Chinmay Shah at Quora Mark as irrelevant Undo

Answer:

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There are PDF functions in PHP. Try reading the manual: http://www.php.net/manual/en/book.pdf.ph&hellip...

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