1. A method of determining and presenting at least one absolute or relative gene expression level from at least one sample, which comprises: providing at least one sample, wherein the sample comprises at least one nucleic acid target sequence; hybridizing the at least one sample to a nucleic acid probe array, such that the at least one target sequence hybridizes to the probe array; measuring emission intensity values from the probe array; providing a computer with a computer program, wherein said program is designed to receive one or more sets of emission intensity data corresponding to probes of the probe array; determining, with the computer program, at least one absolute or relative gene expression level based, at least in part, on a statistical measure of the emission intensity data, at least one user-selectable statistical parameter, and a p-value calculation; and displaying the at least one absolute or relative gene expression level based, at least in part, on at least one user-selectable display parameter, thereby determining and presenting the at least one absolute or relative gene expression level.