Finding the Euclidean Distance

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Pat
Pat on 29 Dec 2012
I have values as
data2 =
[20x480 double] [20x480 double] [20x480 double] [20x480 double]
{ 1x8 cell } { 1x8 cell } { 1x8 cell } { 1x8 cell }
data1 =
[20x480 double]
{ 1x8 cell }
i want to match data2 and data1 by euclidean distance and if same values are present i want to display it,plz help
  1 Comment
Matt J
Matt J on 29 Dec 2012
Edited: Matt J on 29 Dec 2012
What's in the 1x8 cells?
What do you want displayed? The data? The column numbers of data2 which agree with data1?
When are the values considered "the same"? When the Euclidean distance = 0 precisely or is there some tolerance>0? If the tolerance=0, why care about the Euclidean distance at all? Why not just use ISEQUAL, as in my Answer below?

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Accepted Answer

Matt J
Matt J on 29 Dec 2012
find(arrayfun(@(i) isequal(data2(:,i),data1), 1:size(data2,2) )),
  8 Comments
Pat
Pat on 3 Jan 2013
if data1 has different values i get empty matrix
i want to display data is present ,how can i check the answer if it is empty matrix or not and display it
so how i can display it as "data is present".

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