[R] Newbie question about read.table

[David Kaplan]

This worked!  Thanks!


----- 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 1:58 PM
Subject: Re: [R] Newbie question about read.table


> 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
>