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\item \textcolor{red}{ -d [filename]} \quad specify input eigen value file name
\item \textcolor{red}{ -u [filename]} \quad specify input eigen vector file name
\item \textcolor{red}{ -c [filename] } \quad specify input covariates file name (optional); an intercept term is needed in the covariates file
-\item \textcolor{red}{ -widv [filename] } \quad specify input weight file name; this is only used for weighting the residual variance of different individuals
+\item \textcolor{red}{ -widv [filename] } \quad weight file contains a column of positive values to be used as weights for residuals---each weight corresponds to an individual, in which a high weight corresponds to high residual error variance for this individual (similar in format to phenotype file)
\item \textcolor{red}{ -gxe [filename] } \quad specify input environmental covariate file name; this is only used for detecting gene x environmental interactions
\item \textcolor{red}{ -cat [filename] } \quad specify input SNP category file name; this is only used for variance component estimation using summary statistics
\item \textcolor{red}{ -beta [filename] } \quad specify input beta/z file name; this is only used for variance component estimation using summary statistics