TY - JOUR T1 - Gene expression data preprocessing JF - Bioinformatics Y1 - 2003 A1 - Herrero, J. A1 - Diaz-Uriarte, R. A1 - Dopazo, J. KW - *Database Management Systems Gene Expression Profiling/*methods Information Storage and Retrieval/methods Internet Oligonucleotide Array Sequence Analysis/*methods Sequence Alignment/*methods Sequence Analysis KW - DNA/*methods *Software *User-Computer Interface AB - We present an interactive web tool for preprocessing microarray gene expression data. It analyses the data, suggests the most appropriate transformations and proceeds with them after user agreement. The normal preprocessing steps include scale transformations, management of missing values, replicate handling, flat pattern filtering and pattern standardization and they are required before performing any pattern analysis. The processed data set can be sent to other pattern analysis tools. VL - 19 UR - http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12651726 N1 - Herrero, J Diaz-Uriarte, R Dopazo, J England Bioinformatics (Oxford, England) Bioinformatics. 2003 Mar 22;19(5):655-6. ER -