CAEN                    Compute the correlation coefficient of gene
                        with category number to identify differentially
                        expressed genes
ZIPLDA                  Classify observations using a Zero-inflated
                        Poisson model.
ZIPLDA.cv               Function to do cross-validation for
                        zero-inflated Poisson classification.
estimatep               Estimate the probability that the read is 0 in
                        a Zero-inflated Poisson model.
newCountDataSet         Generate a simulated sequencing data set using
                        a negative binomial model
realData                A real dataset of gene expression RNA-seq.
