Creating a loop for finding max value from a specified range

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Jamie Mcwilliam
Jamie Mcwilliam 2017-2-24
评论： Jamie Mcwilliam 2017-2-24
Hi all,
I have a vector with 8352 rows and I want to find the max value from each consecutive 288 rows, e.g 1:288, 289:577 etc. So I should end up with 29 max values
I am struggling with making a for loop with this
The vector size will change of course depending on the dataset I am using so need to account for this when reusing the loop
Thanks

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Jan
Jan 2017-2-24
编辑：Jan 2017-2-24
x = rand(8352, 1);
x = reshape(x, 288, []);
y = max(x, [], 1);
And if the length is not a multiple of the window size:
Win = 288;
Len = size(x, 1);
LenP = Len - mod(Len, Win);
x = reshape(x(1:LenP), 288, []);
y = max(x, [], 1);
yRest = max(x(LenP:Len), [], 1);
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Adam
Adam 2017-2-24
编辑：Adam 2017-2-24
doc max
would tell you that the 2nd output argument gives you this:
[y,idx] = max(...);
Jamie Mcwilliam
Jamie Mcwilliam 2017-2-24
Hi adam, yep I did use this but because the vector is reshaped the corresponding index does not match my time vector (8352x1)

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