Hey,

I am getting trouble with aggregating my data. Please suggest me how to aggregate the data by a level say for example "genus". Please see the command and error message below.

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Command 

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> MSOTrimG = aggTax(MSO, lvl="genus", out = "MRexperiment")

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Error message 

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Error in `[.data.frame`(fData(obj), , lvl) : undefined columns selected

Regards,

Nazmul

Hi Nazmul,

What are the column names of the featureData slot? 

colnames(fData(MSO))

You need to use one of those names, or alternatively a vector of your choosing of size nrow(MSO).