[R] Remove names and more from list with capture.output()

[David Winsemius]

On Nov 15, 2011, at 2:43 PM, Sverre Stausland wrote:

> Thanks David - this is pretty close to what I am looking for. However,
> the output of vec[2] now includes the row number [1] and quotations
> marks at the endpoints of the row. Is there an easy way to exclude
> those?
>

The usual method is to use cat() rather than print(). Those items are  
not part of the vector.

-- 
David.
> Thanks
> Sverre
>
> On Tue, Nov 15, 2011 at 8:11 AM, David Winsemius <dwinsemius at comcast.net 
> > wrote:
>>
>> On Nov 14, 2011, at 11:49 PM, Sverre Stausland wrote:
>>
>>> Hi R users,
>>>
>>> I end up with a list object after running an anova:
>>>
>>>> lm(speed ~ 1 + dist + speed:dist, data = cars) -> Int
>>>> lm(speed ~ 1 + dist, data = cars) -> NoInt
>>>> anova(Int, NoInt) -> test
>>>> test <- test[c("Df", "F", "Pr(>F)")][2,]
>>>> is.list(test)
>>>
>>> [1] TRUE
>>>>
>>>> test
>>>
>>>  Df      F    Pr(>F)
>>> 2 -1 18.512 8.481e-05 ***
>>> ---
>>> Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
>>>
>>> I would like to use capture.output() when writing this information  
>>> to
>>> a text file, but I would like to only print the row, not the names  
>>> (Df
>>>    F    Pr(>F)), and not the significance codes. That is, I want the
>>> text printed to my text file to be:
>>>
>>> 2 -1 18.512 8.481e-05 ***
>>>
>> the output of capture.output is just going to be a character vector  
>> and you
>> should select the second element.
>>
>>> vec <- capture.output(test)
>>> vec[2]
>> [1] "2 -1 18.512 8.481e-05 ***"
>>
>>> Is there a way to do this?
>>>
>>> Thanks
>>> Sverre
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>
>> David Winsemius, MD
>> West Hartford, CT
>>
>>

David Winsemius, MD
West Hartford, CT