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: tware
See also: twrandomsample twpvalue twnormalize tw1d twpearson twclt

Quantlet: twlinreg
Description: teachware quantlet twlinreg gives visual insight into how least squares simple linear regression works, and the relationship between the regression of Y on X, X on Y, and total regression.

Reference(s):

Usage: twlinreg({x})
Input:
x matrix (n x 2) with user defined data

Note:

Example:
; load teachware library
library("tware")
; predefine matrix
x = normal(100,2)
; call twlinreg teachware quantlet
twlinreg(x)

Result:
a three window port display with the scatterplot of the matrix x
in the upper port and the values of the RSS and the regression
equation in the middle (text) port. The lower port is reserved for
display of the current residuals.



Author: S. Klinke, W. Haerdle, 19990103 license MD*Tech
(C) MD*TECH Method and Data Technologies, 05.02.2006