TY - JOUR AU - Zhang, Wensheng AU - Fang, Hong-Bin AU - Song, Jiuzhou PY - 2009 DA - 2009/01/30 TI - Principal component tests: applied to temporal gene expression data JO - BMC Bioinformatics SP - S26 VL - 10 IS - 1 AB - Clustering analysis is a common statistical tool for knowledge discovery. It is mainly conducted when a project still is in the exploratory phase without any priori hypotheses. However, the statistical significance testing between the clusters can be meaningful in helping the researchers to assess if the classification results from implementing a clustering algorithm need to be improved, even after the cluster number has been determined by a well-established criterion. This is important when we want to identify highly-specific patterns through classification. SN - 1471-2105 UR - https://doi.org/10.1186/1471-2105-10-S1-S26 DO - 10.1186/1471-2105-10-S1-S26 ID - Zhang2009 ER -