[R] Newbie question about read.table

[Chuck Cleland]

David Kaplan wrote:
> Here is what I'm doing
> 
> birthweight <- read.table("c:/bw.dat", header = T)
>> summary(glm(low~age,binomial))
> Error in eval(expr, envir, enclos) : object "low" not found
>>

Try this:

birthweight <- read.table("c:/bw.dat", header = TRUE)
summary(glm(low ~ age, family=binomial, data=birthweight))

> Thanks all!
> 
> 
> ----- Original Message ----- From: "Chuck Cleland" <ccleland at optonline.net>
> To: "David Kaplan" <dkaplan at UDel.Edu>
> Cc: <r-help at stat.math.ethz.ch>
> Sent: Thursday, May 11, 2006 1:53 PM
> Subject: Re: [R] Newbie question about read.table
> 
> 
>> David Kaplan wrote:
>>> Hi
>>>
>>> When I use the read.table function with header = T, I notice that it 
>>> gives me the variable names along the top as I expect.  But, when I 
>>> then attempt an analysis, e.g. regression, it doesn't recognize the 
>>> variable names.  Am I missing a step.  Thank you
>>>
>>> David
>>
>>   Are you assigning the result of read.table() to a data frame.  And 
>> then do you refer to that data frame in your call to lm()?  If that 
>> does not solve the problem, you may want to show us the code you are 
>> using.
>>
>> Chuck
>>
>>> [[alternative HTML version deleted]]
>>>
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>>
>> -- 
>> Chuck Cleland, Ph.D.
>> NDRI, Inc.
>> 71 West 23rd Street, 8th floor
>> New York, NY 10010
>> tel: (212) 845-4495 (Tu, Th)
>> tel: (732) 512-0171 (M, W, F)
>> fax: (917) 438-0894
>>
> 
> 

-- 
Chuck Cleland, Ph.D.
NDRI, Inc.
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894