Thread: generating vector of random numbers in matlab until sum exceeds M

Given M and lamda by the user, i am trying to write matlab code that produces a vector of increasing size whose entries are exponentially distributed random variables (mean 1/lambda) until the sum of the vector exceeds M..

any ideas how to do this?? I have been trying with while loops but cant quite do it...

Originally Posted by johnbarkwith

Given M and lamda by the user, i am trying to write matlab code that produces a vector of increasing size whose entries are exponentially distributed random variables (mean 1/lambda) until the sum of the vector exceeds M..

any ideas how to do this?? I have been trying with while loops but cant quite do it...

Write a loop that calculates a single random number of the correct type, keep a running total when this exceeds M stop, otherwise append the new random number to the vector of those already found.

CB