Design matrix, Advanced Statistics

It is used generally for the matrix which specifies a statistical model for a set of observations.

For instance, in a one-way design with the three observations in one group, two observations in the  second group and a one observation in the third group, and where the model is
2142_design matrix.png 

the design matrix, X is
1554_design matrix1.png 
By making use of this matrix the model for all the observations can be conveniently expressed in matrix form as
1081_design matrix2.png 
1904_design matrix3.png 
It is also used specifically for the matrix X in the designed industrial experiments which specify the chosen values of the explanatory variables; these are frequently selected using one or the other criteria.

Posted Date: 7/27/2012 2:24:53 AM | Location : United States







Related Discussions:- Design matrix, Assignment Help, Ask Question on Design matrix, Get Answer, Expert's Help, Design matrix Discussions

Write discussion on Design matrix
Your posts are moderated
Related Questions
Generalized method of moments (gmm) is the estimation method popular in econometrics which generalizes the method of the moments estimator. Essentially same as what is known as the

Mann Whitney test is a distribution free test which is used as an alternative to the Student's t-test for assessing that whether the two populations have the same median. The test

A statewide survey of 1,706 California adults’ residents include the following question: would you favor or oppose providing a path to citizenship for illegal immigrants in the U.S

#how to analyse data

The interplay of the genes and environment on, for instance, the risk of disease. The term represents the step away from the argument as to whether the nature or nurture is the pre

Machine learning  is a term which literally means the ability of a machine to recognize patterns which have occurred repetitively and to improve its performance based on the past

The division of a sample of observations into several classes, together with the number of observations in each of them.  It acts as a useful summary of the main features of the da

Residual plots are the plots of some type of residual which might be helpful in assessing the assumption made by the fitted model. In regression analysis there are various method

Infant mortality rate is the ratio of the number of deaths during the calendar year among the infants under one year of age to the total number of live births during that particul

I do have a data of real gdp for each state and from 2000 to 2010 and I also have estimated population of illigel immigrants for each state from 2000 to 2010. In my thesis I am try