how to improve dimensionality and pca how can i perform a linear regression why does pca not work in a linear regression what is the problem with interpolating a regression model? why is the pca used in regression how to reduce the number of cells in a linear model what model for calculating pca how many cells in a linear regression what is the problem with pca how to do an interpolated linear regression what makes a linear regression model robust can pca be used for regression? what is the best model for an interpolation how does a pca work what is interpolated model? how to reduce the number of genes for linear regression does pca decrease dimensionality is the pca robust why is pca used to decrease the number of genes how do you interpolate the IC50 data