make.regressor.matrix {bqtl}

Create regressors using expected marker values

Description

Create regression variables for markers and loci between or near markers by imputation conditional on known marker states.

Usage

make.regressor.matrix(state.matrix, mode.mat=NULL)

Arguments

state.matrix

A state.matrix.object - see make.state.matrix for more details

mode.mat

A matrix which indicates the values of regressor variables corresponding to the allele states. If mode.mat=NULL (the default) a mode.mat is inferred from the dimensions of state.matrix. For the F2 intercross these are typically additive and dominance codes like (-1,0,1) and (1,-1,1). For BC1 backcross and RI lines, typically the values are (-1,1).

Value

A matrix with variables suitable for use as regressors.

References

Haley C.S. and Knott S.A. (1992) A simple regression method for mapping quantitative trait loci in line crosses using flanking markers. Heredity 69,315-324.

See Also

make.state.matrix