XploRe Help : grid

Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Group:	Binning, Grids and Sequences
See also:	bindata aseq conv distance mseq

Function:		grid
Description:		This command generates a grid with origin x and stepwidth h with respect to each dimension, n indicating the number of gridpoints in the respective dimension.

Usage:	`z = grid (x, h, n)`
Input:
	`x`	m x 1 x d1 x ... x dn array
	`h`	m x 1 x d1 x ... x dn array
	`n`	m x 1 x d1 x ... x dn array
Output:
	`z`	m x (n1n2...*nm) x d1 x ... x dn array

Note:

The coordinates of n all have to be greater than 0.

Example:

x = #(0, 0, 0) h = #(1, 2, 3) n = #(2, 2, 2) z = grid(x,h,n) sort(z)

Result:

Contents of sort

[1,]        0        0        0
[2,]        0        0        3
[3,]        0        2        0
[4,]        0        2        3
[5,]        1        0        0
[6,]        1        2        0
[7,]        1        2        3
[8,]        1        0        3

Example:

x = #(0, 0, 0) h = #(0.5, 0.5, 0.5) n = #(1, 2, 3) z = grid(x,h,n) sort(z)

Result:

Contents of sort

[1,]        0      0.5      0.5
[2,]        0        0        1
[3,]        0      0.5        0
[4,]        0        0        0
[5,]        0        0      0.5
[6,]        0      0.5        1