[R] how to view only readings of a selected data from a column while the other columns remain

[David Winsemius]

On Sep 15, 2012, at 2:22 AM, kangam3 wrote:

> Hi Friends
> 
> I am new here and have a problem 
> 
>  Year       Market         Winner          BID
> 1  1990        ABC             Apple          0.1260
> 2  1990        ABC             Apple         0.1395
> 3  1990        EFG             Pear           0.1350
> 4  1991        EFG             Apple         0.1113
> 5  1991        EFG            Orange          0.1094
> 
> 
> For each year and separately for the two markets (i.e.,ABC,EFG), examine the
> combined data for Apple and Pear on the bid price variable BID for presence
> of potential outliers.5 Identify instances where you observe the presence of
> potential outliers.

An identical question was posted on StackOverflow. Not only is there a no homework policy, there is also a no cross-posting policy.

-- 
David.
> 
> I managed to separate the data by year only
> 
> y <- c(1, seq(300))
>> year1991 <- subset(X, y < 39)
>> year1991
> Year1991 <- year1991[, c(1,2,3,5)]
>> Year1991
> 
> now I need help on whats the right R command to key to select(View) only ABC
> of the Market COLUMN, which the other column values remains.
> 
> Is it possible to do multiple  separation at one time? or step by step
> 
> Kindly advise :)
> 
> 
> 
> --
> View this message in context: http://r.789695.n4.nabble.com/how-to-view-only-readings-of-a-selected-data-from-a-column-while-the-other-columns-remain-tp4643216.html
> Sent from the R help mailing list archive at Nabble.com.
> 
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David Winsemius, MD
Alameda, CA, USA