Sum through an array until a value is reached, then continue

10 次查看(过去 30 天)
Assume you have 2 arrays x = linspace(0.001,0.005,1000); y = linspace(0,1,1000);
I want to start at the beginning of x, and sum consecutive columns until the sum = 0.1, then take the average of y across that range.... then continue doing this until the end of x
  6 个评论
Bruno Luong
Bruno Luong 2018-11-2
编辑:Bruno Luong 2018-11-2
"With the values given, the first 100 columns would sum to 0.1"
No body know where the 100 comes from. Anyone is guessing and people just wastes theirs times for you.
Not give example is better than give one that doesn't make sense.

请先登录,再进行评论。

采纳的回答

Matt J
Matt J 2018-11-2
编辑:Matt J 2018-11-2
c=cumsum(x);
G=discretize(c, 0:0.1:c(end));
result = splitapply(@mean, y, G),

更多回答(2 个)

madhan ravi
madhan ravi 2018-11-2
编辑:madhan ravi 2018-11-2
mean(y(cumsum(x)<=0.1))
  8 个评论

请先登录,再进行评论。


Guillaume
Guillaume 2018-11-2
sumx = cumsum(x);
meanybelowthreshold = mean(y(sumx <= 0.1));
meanyabovethreshold = mean(y(sumx > 0.1));

类别

Help CenterFile Exchange 中查找有关 Resizing and Reshaping Matrices 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by