AW: [R] Looking for help in calculating percentiles

[TEMPL Matthias]

Type e.g.:  
quantile(x,0.1)
or
Quantile(x,0.8)

Which calculates the 10th and 80th quantile

Matthias Templ

-----Ursprüngliche Nachricht-----
Von: arinbasu at softhome.net [mailto:arinbasu at softhome.net] 
Gesendet: Montag, 26. April 2004 09:29
An: r-help at stat.math.ethz.ch
Betreff: [R] Looking for help in calculating percentiles


Hi All: 

I am working with a dataset on Arsenic toxicity, and I am trying to 
calculate the 20th, 40th, 60th, 80th, and highest percentiles for a 
variable, dietary Moisture (variable name dMoist). 

The inbuilt function quantile(dMoist) would print 0, 25th, 50th, 75th, and 
100th percentile. Does there exist a function that can calculate xth 
percentile (where x = 10th, 20th, ... etc) values? 

I looked for such functions in the documentation, but couldn't find one. Has 
anyone written a similar function that can be used? Is there a module or a 
function that I have missed? 

I use R in both Windows XP as well as Linux (Fedora Core 1 (Yarrow)) on a 
Duron I Gz machine with 128 MB RAM. 

Thanks in Advance,
Arin Basu

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