[R] Annoying startup error message

[Duncan Murdoch]

On 26/02/2016 3:36 PM, Lars Bishop wrote:
> I understand the solution would be to unset my "SPARK_HOME" environment
> variable. I can do this with Sys.unsetenv() but it does not unset
> permanently (only in the session). How can I unset permanently?
>
> Sys.getenv("SPARK_HOME")
> [1] "/Users/lars/Downloads/spark-1.6.0-bin-hadoop2.6/bin/spark"
>
> Sys.unsetenv("SPARK_HOME")
> Sys.getenv("SPARK_HOME")
> [1] ""
>

R doesn't look at that variable, so that would not be the cause.

Duncan Murdoch

>
> Thanks again for you help!
> Lars.
>
> On Fri, Feb 26, 2016 at 2:11 PM, Duncan Murdoch <murdoch.duncan at gmail.com>
> wrote:
>
>> On 26/02/2016 12:07 PM, Sarah Goslee wrote:
>>
>>> Perhaps you at one point added it to your .RProfile so the package is
>>> loaded at startup. You can check by starting R from the command line
>>> with
>>> R --vanilla
>>> which doesn't load any of the profile files.
>>>
>>> https://stat.ethz.ch/R-manual/R-devel/library/base/html/Startup.html
>>>
>>
>> Another possibility is that SparkR defines some S4 classes, and you have
>> an object of that type in your workspace.  To read it might need SparkR
>> installed.
>>
>> The solution here is to run R --vanilla as above, or to delete the object
>> from the workspace, or the whole workspace.
>>
>> Duncan Murdoch
>>
>>
>>> Sarah
>>>
>>> On Fri, Feb 26, 2016 at 12:01 PM, Lars Bishop <lars52r at gmail.com> wrote:
>>>> Thank you Ulrik. I actually don't want to install SparkR, just don't
>>> want
>>>> to have that error message when R starts. For some reason, R is trying
>>> to
>>>> load the package every time it starts...
>>>>
>>>> Thanks
>>>> Lars.
>>>>
>>>> On Fri, Feb 26, 2016 at 11:53 AM, Ulrik Stervbo <
>>> ulrik.stervbo at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi Lars,
>>>>>
>>>>> The error tells you that SparkR is not installed.
>>>>>
>>>>> I believe you can install it like this:
>>>>>
>>>>> library(devtools)
>>>>> install_github("amplab-extras/SparkR-pkg", subdir="pkg")
>>>>>
>>>>> I took it from https://github.com/amplab-extras/SparkR-pkg and I
>>> haven't
>>>>> tried it myself.
>>>>>
>>>>> Hope this helps,
>>>>> Ulrik
>>>>>
>>>>> On Fri, 26 Feb 2016 at 17:40 Lars Bishop <lars52r at gmail.com> wrote:
>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> Just installed R version 3.2.3, and I'm getting the error message
>>> below
>>>>>> every time I start R. I had SparkR installed in the prior version. I
>>>>>> googled this problem, but didn;t find anything useful.
>>>>>>
>>>>>> Any help would be very appreciated.
>>>>>>
>>>>>> Error in library(SparkR) : there is no package called ‘SparkR’
>>>>>> [R.app GUI 1.66 (7060) x86_64-apple-darwin13.4.0]
>>>>>>
>>>>>>
>>>>>> Best,
>>>>>> Lars.
>>>>>>
>>>
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>>
>