thanks! this was very helpful-- ultimately changed the name although it was
a little confusing to do so...

On Wed, Feb 15, 2012 at 6:12 PM, David Winsemius <dwinsemius@comcast.net>wrote:

>
> On Feb 15, 2012, at 5:30 PM, Yihui Xie wrote:
>
>  Man, the original reply told you to use backticks `` rather than
>> double quotes "". They are very different in R; see ?Quotes
>>
>> And GSE19829-GPL570_eset is really a bad name. I recommend you to rename
>> it.
>>
>> Regards,
>> Yihui
>> --
>> Yihui Xie <xieyihui@gmail.com>
>> Phone: 515-294-2465 Web: http://yihui.name
>> Department of Statistics, Iowa State University
>> 2215 Snedecor Hall, Ames, IA
>>
>>
>>
>> On Wed, Feb 15, 2012 at 4:09 PM, Ben Ganzfried <ben.ganzfried@gmail.com>
>> wrote:
>>
>>> Hi Martin,
>>>
>>> Thanks! You were right.  Quotes seemed to work, except I kept running
>>> into
>>> a problem on the following line:
>>>
>>> time <- "GSE19829-GPL570_eset$days_to_**death" / 365
>>>
>>
> If you use Yihui's advice, you should only back-tick around the dataframe
> name and not around the column name.
>
>
>
>
>>> The error is that R atomic vector operator invalid.
>>>
>>
> Because you are trying to divide a character value by a number.
>
> --
> David.
>
>   It's actually much
>>> easier if I could use quotes rather than re-name-- so is there any way to
>>> put quotes around the columns in "GSE19829-GPL570_eset" such that it does
>>> what i want it to?
>>>
>>> In the above "time" example, I just want to take the values in the column
>>> and divide by 365, but the quotes are messing it up. Any clarification
>>> would be really greatly appreciated!
>>>
>>> Thanks!
>>>
>>> Ben
>>>
>>>
>>>
>>> On Wed, Feb 15, 2012 at 4:20 PM, Martin Morgan <mtmorgan@fhcrc.org>
>>> wrote:
>>>
>>>  On 02/15/2012 12:18 PM, Ben Ganzfried wrote:
>>>>
>>>>  Hey,
>>>>>
>>>>> I keep getting the following warning:
>>>>>
>>>>>  data(GSE19829-GPL570_eset)
>>>>>
>>>>>>
>>>>>>  Warning in data(GSE19829 - GPL570_eset) :
>>>>>  data set ‘GSE19829 - GPL570_eset’ not found
>>>>>
>>>>>  ## maybe str(GSE19829-GPL570_eset) ; plot(GSE19829-GPL570_eset) ...
>>>>>>
>>>>>>
>>>>>  Hi Ben --
>>>>
>>>> '-' is being parsed as a minus sign;  you could (I think) quote it
>>>>
>>>>  `GSE19829-GPL570_eset`
>>>>
>>>> or better come up with a legal name.
>>>>
>>>> Martin
>>>>
>>>>
>>>>  if(require(affy)){
>>>>>>
>>>>>>  +   summary(GSE19829-GPL570_eset$****vital_status)
>>>>> +  }
>>>>> Error in summary(GSE19829 - GPL570_eset$vital_status) :
>>>>>  object 'GSE19829' not found
>>>>> Execution halted
>>>>>
>>>>> This error does not happen on other of my other .Rd files.  None of the
>>>>> other .Rd files have a "-" character in their title.  for example, the
>>>>> other files have the following:
>>>>>
>>>>>  data(GSE1234)
>>>>>>
>>>>>>  OR
>>>>>
>>>>>  data(GSE5678)
>>>>>>
>>>>>>
>>>>> I think the issue is the "-" character, but I'm not sure.  Does anyone
>>>>> know
>>>>> if this is the case?  And if so, how do I fix it?  If not, any other
>>>>> suggestions?
>>>>>
>>>>> Much thanks!
>>>>>
>>>>> Ben
>>>>> tained, reproducible code.
>>>>>
>>>>
> David Winsemius, MD
> West Hartford, CT
>
>

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