has specified data input has specified data output implements has format specification is executed in data format specification OrderedList Detection of similarities between ordered lists of genes. Thereby, either simple lists can be compared or gene expression data can be used to deduce the lists. Significance of similarities is evaluated by shuffling lists or by resampling in microarray data, respectively. Nandini Badarinarayan http://bioconductor.org/packages/2.4/bioc/html/OrderedList.html Gene list Similarity score Gene expression dataset R software differential expression analysis