Using Nearest
Nearest is used to find elements in a list that are closest to a given data point.
| Nearest[{elem1,elem2,...},x] | give the list of  to which x is nearest |
| Nearest[{elem1->v1,elem2->v2,...},x] |
| give the  corresponding to the  to which x is nearest |
| Nearest[{elem1,elem2,...}->{v1,v2,...},x] |
| give the same result |
| Nearest[{elem1,elem2,...}->Automatic,x] |
| take the  to be the integers 1, 2, 3, ... |
| Nearest[data,x,n] | give the n nearest elements to x |
| Nearest[data,x,{n,r}] | give up to the n nearest elements to x within a radius r |
| Nearest[data] | generate a NearestFunction[...] which can be applied repeatedly to different x |
Nearest function.
Nearest works with numeric lists, tensors, or a list of strings.
This finds the elements nearest to 4.5.
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This finds 3 elements nearest to 4.5.
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This finds all elements nearest to 4.5 within a radius of 2.
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This finds the points nearest to
in 2D.
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This finds the nearest string to "cat".
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The rule-based data syntax lets you use nearest elements to return their labels.
Here two-dimensional points are labeled.
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This labels the elements using successive integers.
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If Nearest is to be applied repeatedly to the same numerical data, you can get significant performance gains by first generating a NearestFunction.
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This finds points in the set that are closest to the 10 target points.
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Option for Nearest.
For numerical data, by default Nearest uses the EuclideanDistance. For strings, EditDistance is used.
