quantile / centile

Thanks, for the response!
Unfortunately, I was unclear; my problem is not that I need to know what the
percentile ranges are, but that I need to assign an appropriate percentile
range to each of the records in my dataframe.   My dataframe contains
somewhere between 1000 and 9000 rows/records in my dataframe (depending on
context), not a hundred rows.   That is, I'd like to assign a corresponding
quantile value to each row that corresponds to the quantile() result for
each record in my 1000-9000 row data frame.

Thanks again for any help!


  

On Sat, Sep 27, 2008 at 8:54 AM, Henrique Dallazuanna <wwwhsd at gmail.com>wrote:

  

Try this:

my.df$my.newvar <- quantile(my.df$my.var, probs = seq(0.01,1, 0.01))


On Sat, Sep 27, 2008 at 3:50 AM, Donald Braman <dbraman at law.gwu.edu>
wrote:
    

I'm wondering if there is a simple way to assign a quantile to a vector
      

in a
    

data frame, much like one could in Stata using centile. Let's say I want
      

100
    

slices in my assignation. I can easily see what the limits of each slice
      

by
    

using quantile:
quantile(my.df$my.var, probs=seq(0, 1, 0.01))

But how do I assign the appropriate value to each row/record in my data
frame? Clearly the following won't work, but what will?

my.df$my.new.var <- quantile(my.df$my.var, probs=seq(0, 1, 0.01))

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