Supporting data for "Clustering trees: a visualisation for evaluating clusterings at multiple resolutions"
Dataset type: Transcriptomic, Software
Data released on June 27, 2018
Clustering techniques are widely used in the analysis of large data sets to group together samples with similar properties. For example, clustering is often used in the field of single-cell RNA-sequencing in order to identify different cell types present in a tissue sample. There are many algorithms for performing clustering and the results can vary substantially. In particular, the number of groups present in a data set is often unknown and the number of clusters identified by an algorithm can change based on the parameters used. To explore and examine the impact of varying clustering resolution we present clustering trees. This visualisation shows the relationships between clusters at multiple resolutions allowing researchers to see how samples move as the number of clusters increases. In addition, meta-information can be overlaid on the tree to inform the choice of resolution and guide in identification of clusters. We illustrate the uses of clustering trees using two examples, the classical iris dataset and a complex single-cell RNA-sequencing dataset.
|Sample ID||Taxonomic ID||Common Name||Genbank Name||Scientific Name||Sample Attributes|
|pbmc6k||9606||Human||human||Homo sapiens|| Description:RNA-seq transcript sequences from 2700 Peripheral blood mononuclear cells (PBMCs) from a healthy donor|
Sample source:10x Genomics
Cell type:Peripheral Blood Mononuclear Cells