chowdary: Chowdary Database

In ICGE: Estimation of Number of Clusters and Identification of Atypical Units

Chowdary Database

Description

The original authors compared pairs of snap-frozen and RNAlater preservative-suspended tissue from lymph node-negative breast tumors (B) and Dukes' B colon tumors (C). The actual data set, by de Souto et. al (2008), is build with purpose of separating B from C.

Usage

data(chowdary)

Format

Data frame with 183 rows and 104 columns.

Source

Original source from ‘National Center for Biotechnology Information’ from the United States of America, query GSE3726.

References

de Souto MCP, Costa IG, de Araujo DSA, Ludermir TB, and Schliep A (2008). Clustering Cancer Gene Expression Data: a Comparative Study. BMC Bioinformatics, 8, 497–511.

Chowdary D, Lathrop J, Skelton J, Curtin K, Briggs T, Zhang Y, Yu J, Wang X, and Mazumder A (2006). Prognostic gene expression signatures can be measured in tissues collected in RNAlater preservative. Journal Molecular Diagnosis, 8, 31–39.

Examples

data(chowdary)

tumor <- as.factor(as.matrix(chowdary[1,]))
x <- as.matrix(chowdary[-1,])
mode(x) <- "numeric"

s <- sample(row.names(x),1)
boxplot( x[s,] ~ tumor , ylab=s)

ICGE documentation built on Oct. 17, 2022, 5:10 p.m.