How-to: download data from gemma
https://www.ncbi.nlm.nih.gov/pubmed/22782548 https://gemma.msl.ubc.ca/home.html https://github.com/PavlidisLab/gemmaAPI.R
Install the wrapper
library(devtools)
devtools::install_github('PavlidisLab/gemmaAPI.R')
Download data
data = datasetInfo('GSE19804', request='data', filter = TRUE, return = TRUE, file = NULL )
Get metadata
meta = compileMetadata('GSE19804', outputType = "list")