There is any function displacement
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This array
I want find differential between the numbers then, i want find displacement
and thank u
回答(1 个)
Joseph Cheng
2015-5-17
编辑:Joseph Cheng
2015-5-17
you can use the function diff() to perform this differential. so you'll have something like
da = diff(a); %this will get your your [4 5 ...]
then you can perform your da./a(1:end-1)*100.
7 个评论
abduall hassn
2015-5-17
编辑:abduall hassn
2015-5-17
Joseph Cheng
2015-5-17
编辑:Joseph Cheng
2015-5-17
well then you did not explain it very well. this will give you the displacement that you asked for of each neighboring indexes, so by going diff(a) you get your first second third differential like you explained. Then you can divide by the original and multiply by the 100.
so if
da = 100*diff(a)./a(1:end-1)
is not what you are looking for please explain more
abduall hassn
2015-5-17
abduall hassn
2015-5-17
Image Analyst
2015-5-17
Try executing this line of code before you do that:
format long g;
abduall hassn
2015-5-19
Joseph Cheng
2015-5-19
da = diff(a,[],2)./a read the documentation of the function diff() to see that by performing diff(a,[],2) we perform it in the correct dimension.
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