XploRe Help : xgobinadawat

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

Library:	rpclib
See also:	xgobilocpol xgobilowess xgobineunet

Macro:		xgobinadawat
Description:		conmputes a kernel fit for XGobi

Link:

XGobi

Usage:	`yh = xgobinadawat(x,y,g,h)`
Input:
	`x`	n x 1 matrix
	`y`	n x 1 matrix
	`g`	n x 1 matrix with integers starting at zero
	`h`	scalar bandwidth
Output:
	`yh`	n x 1 matrix smoothed fit

Note:

XGobi gives h as negative number which allows the user to use the macro for other purposes. We expect that XGobi sets h between -333 and -3900.

Example:

; load the library for XGobi library ("rpclib") ; create a display d=createdisplay(1,1) ; read a data set x=read("motcyc") ; generate randomly three subgroups g=floor(3.*uniform(rows(x))) ; color the data after the subgroups setmaskp (x, g, 3, 4) ; show the data and the smooth show (d, 1, 1, x, x[,1]~xgobinadawat(x[,1],x[,2],g,10))

Result:

shows a kernel fit of for the three 
different subgroups in the data

Library:	rpclib
See also:	xgobilocpol xgobilowess xgobineunet

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

Author: Sigbert Klinke, 960709