Transcription of Multivariate Regression (Chapter 10)
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Multivariate Regression ( chapter 10)This week we ll cover Multivariate Regression and maybe a bit of canonicalcorrelation. Today we ll mostly review univariate Multivariate Multivariate Regression , there are typically multiple dependentvariables as well as multiple independent or explanatory variables. Aspecial case of this is when the explanatory variables are categorical andthe dependent variables are continuous (particularly Multivariate normal),in which case we have MANOVA. For Multivariate Regression , we allow theexplanatory variables to be continuous. This approach generalizes multipleregression much as MANOVA generalizes in Regression , we think of theyvariables as random and thexvariables as fixed. For Multivariate Regression , we ll considerxvariables aseither fixed or random. We ll start with them being treated as 29, 20151 / 35 Multivariate regressionFirst, we ll review multiple (univariate) Regression with this model, we havey1= 0+p j=1 jx1j+ 1y2= 0+p j=1 jx2j+ 0+p j=1 jxnj+ nApril 29, 20152 / 35 Multivariate regressionThe standard assumptions for multiple Regression areE( i) = 0 Var( i) = 2cov( i, j) = 0 Equivalently, you can writeE( ) =0 Cov( ) = 2 IApril 29, 20153 / 35 Multivariate regressionUnder the assumption that thexs are fixed, we haveE(yi) = 0+p j=1 jx1jVar(yi) = 2 Cov(yi,yj) =Cov( i, j) = 0 Equivalently,E(y) =X Cov(y) = 2 IApril 29, 20154 / 35 Multivariate regressionThe regres
Multivariate regression For multivariate regression, we have p variables for y, so that Y = (y ij) is an n p matrix. The observation vectors are y0 i, i = 1;:::;n. As usual, observation vectors are considered as column vectors even though they are written horizontally in the data le and even though they correspond to rows of Y. April 29, 2015 ...
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Random Vectors and Multivariate Normal, Random, Multivariate normal, Random vectors, Normal random, 3. The Multivariate Normal Distribution, The Multivariate Normal Distribution, Normal, Random Vectors and the Variance{Covariance Matrix, Multivariate, Gaus-sian, Gaussian, Vectors, Intuitive Tutorial to Gaussian Processes Regression