[R] Loading large tar.gz XenaHub Data into R

Spencer Brackett @pbr@ckett20 @end|ng |rom @@|ntjo@ephh@@com
Fri Aug 2 00:13:08 CEST 2019


Good evening,

I am attempting to load the following Xena dataset
https://tcga.xenahubs.net/download/TCGA.GBMLGG.sampleMap/HumanMethylation450.gz

I am trying to unpack the dataset and read it into R as a table, but due to
the size of the file, I am having some trouble. The following are the
commands I have tried thus far.

HumanMethylation450 <- fread("
https://tcga.xenahubs.net/download/TCGA.GBMLGG.sampleMap/HumanMethylation450.gz
")

readLines("
https://tcga.xenahubs.net/download/TCGA.GBMLGG.sampleMap/HumanMethylation450.gz
")

                 ###These two above attempts failed with warning messages
from R###

Methyl <-read.delim("
https://tcga.xenahubs.net/download/TCGA.GBMLGG.sampleMap/HumanMethylation450.gz
")

               ##This attempt is still processing, but has been doing so
for quite some time##

Any ideas as to what else I could try?

Best,

Spencer

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