On Apr 16, 2009, at 10:45 AM, Amit Patel wrote:


I have csv files imported in r each with 2 columns and many many rows. I have sorted the data in them but want to extract some values.

The first column is an ID
The second is a p-value ( now sorted in increasing order with NA's last)
I want to extract the rows with a p-value of less than 0.05)

What commands would help
the table is called AnovaSort with column headings MCI & p-value

"p-value" is a rather unlikely R name for a column since it is illegal in R. Using a "table" is also unlikely, so let's assume that once you have read it into a dataframe, that it's named p_value.

AnovaSort[AnovaSort$p_value < 0.05]

David Winsemius, MD
Heritage Laboratories
West Hartford, CT

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