I want to calculate a cumulative sum of the values in column 2 of dat.txt below for each string of ones in column 1. The desired output is shown as dat2.txt: dat.txt dat2.txt 1 20 1 20 20 % 20 + 0 1 22 1 22 42 % 20 + 22 1 20 1 20 62 % 42 + 20 0 11 0 11 11 0 12 0 12 12 1 99 1 99 99 % 99 + 0 1 20 ...
This question is related to http://stackoverflow.com/questions/3101893/how-can-i-perform-this-cumulative-sum-in-matlab. Is it possible to use TWO conditions to perform cumsum? or just one condition? EDITED: data = [1 22 20;... %# Initial data 1 22 22;... 1 22 20;... 1 44 11;... 0 44 12;... 1 33...
Hi, I have a vector of doubles and I need to create another array which is a cumulative sum of the elements of the first. For example; vector<double> Array(10,1); vector<double> Sum(10); Sum[0] = Array[0]; for(unsigned int i=1; i<Array.size(); i++) Sum[i] = Sum[i-1] + Array[i]; Is there an in-built function that will ...
I need a MDX query which returns the top N percent of the rows based on a cumulative sum of a measure. The tricky part is that the set must be ordered based on a different measure than is used for the sum, so using the TopPercent function is not possible. To clarify what I need, here's an example. I want to buy at least 1000 grams of me...