[R] R-help: beginner question

[Monica Palaseanu-Lovejoy]

Hi,

I am a beginner user of R. I have a trivial question – I am almost 
ashamed I cannot figure it out does not matter how many times I 
am reading the help.

I have a table in .txt format, tab delimited. I can read it with 
‘read.delim()’ with no problems.

Afterwards I would like to use boxplot function to see if there 
are any outliers in the column 5 of my data called TPAH16.ppm

In the boxplot help I saw that I have to declare my data with 
‘data()’. I am getting errors does not matter how I am calling 
‘data()’, only with the name of the table, with 
data(read.delim()), or in any other way. So in the end I was not 
able to use boxplot at all.

I will appreciate any help “for dummies” you can give me. Also, 
if you know any other way to identify outliers, or to use Cook 
dimension to identify them, I will really appreciate.

Thanks,

Monica


Monica Palaseanu-Lovejoy
University of Manchester
School of Geography
Mansfield Cooper Building 
Oxford Road, Manchester
M13 9PL, UK. 
email: monica.palaseanu-lovejoy at stud.man.ac.uk