Cityblock distance of two coordinate arrays

a1 : ^a array

a2 : ^a array

Returns: float

Example

Cityblock distance of two coordinate float arrays (ignores nan)

a1 : float array

a2 : float array

Returns: float

Example

Euclidean distance of two coordinate arrays

a1 : ^a array

a2 : ^a array

Returns: float

Example

Euclidean distance of two coordinate float arrays (ignores nan)

a1 : float array

a2 : float array

Returns: float

Example

Squared Euclidean distance of two coordinate float arrays (ignores nan)

a1 : float array

a2 : float array

Returns: float

Example

Calculates Hamming distance of two coordinate arrays

Note, distance between Nan and Nan is equal to 1

a1 : 'a array

first array

a2 : 'a array

second array

Returns: int

Hamming distance between elements of given arrays

Example

 
 // e.g. a1 and a2 initialization
 let a1 = [|1; 2; 3|]
 let a2 = [|9; 2; 3|]
 
 // Apply the hamming to a1 and a2
 Array.hamming a1 a2

The [Minkowski distance](https://en.wikipedia.org/wiki/Minkowski_distance) between two arrays of order `p`.

The two arrays need not have equal lengths: when one array is exhausted any remaining elements in the other array are ignored.

a1 : ^a array

a2 : ^a array

p : float

float constrained to `p > 0`

Returns: float option

Minkowski distance between elements of given arrays. Returns NaN if arrays contain NaN.

Example

 
 // e.g. a1 and a2 initialization
 let a1 = [|3.14; 2.0; 3.1|]
 let a2 = [|9.1; 2.5; 3.7|]
 
 // Apply the minkowski distance to a1 and a2
 Array.minkowski a1 a2 3

The [Minkowski distance](https://en.wikipedia.org/wiki/Minkowski_distance) between two arrays (ignores NaN) of order `p`.

Non-regular differences between the sequences are ignored. The two arrays need not have equal lengths: when one array is exhausted any remaining elements in the other array are ignored.

a1 : float array

a2 : float array

p : float

float constrained to `p > 0`

Returns: float option

Minkowski distance between elements of given arrays.

Example

 
 // e.g. a1 and a2 initialization
 let a1 = [|3.14; 2.0; 3.1|]
 let a2 = [|9.1; 2.5; 3.7|]
 
 // Apply the minkowski distance to a1 and a2
 Array.minkowskiNaN a1 a2 3