[R] Help- extracting values

[David Winsemius]

On Apr 16, 2009, at 11:10 AM, David Winsemius wrote:

>
> 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]

Missed a comma:
novaSort[AnovaSort$p_value < 0.05,]

>
>
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT