grm2mat

grmfullheader

This function inputs the data from filename.grm.gz and filename.grm.id and converts it into an n x n correlation matrix appropriate for <code><a href="/link/okriging?package=OmicKriging&version=1.0" rd-options="" data-mini-rdoc="OmicKriging::okriging">okriging</a></code>.

This package provides functions to generate correlation
        matrices from SNP, gene expression, methylation or other
        'omics' datasets and to use these matrices to predict the
        phenotype of an individual by using the phenotypes of the
        remaining individuals through kriging. Kriging is a
        geostatistical method for optimal prediction or best unbiased
        linear prediction. It consists of predicting the value of a
        variable at an unobserved location as a weighted sum of the
        variable at observed locations. Intuitively, it works as a
        reverse linear regression: instead of computing correlation
        (univariate regression coefficients are simply scaled
        correlation) between a dependent variable Y and independent
        variables X, it uses known correlation between X and Y to
        predict Y.

grm2mat: read one set of grm files into a correlation matrix

Description

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See Also