Question: Building a matrix of Profile Expression
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gravatar for grecoandreauni
3.6 years ago by
grecoandreauni0 wrote:

allright so... i'm a college student who has to write a code in R that search the GEO and SRA database for data selected by a user and then i have to "build a matrix that put all the expression profile together"

i already wrote some code using bioconductor that enable the user to search and download data from these two databases,

but the problem is that i don't understand what my professor meant with the second part, am i supposed to just put the data from multiple GEO and SRA file together?

sra R geo • 936 views
ADD COMMENTlink modified 3.5 years ago by Biostar ♦♦ 20 • written 3.6 years ago by grecoandreauni0

Basically, if I understand correctly, to create a matrix in which each column represents a sample and the rows the genes/transcripts/probes (depending on your level of summarization), and the corresponding values in the matrix are the expression levels (assumed you are talking about gene expression profiling).

ADD REPLYlink written 3.5 years ago by ddiez1.8k
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