[R] Output from unix PS

[Sarah Goslee]

What does str(yourdata) return?

How about including
dput(head(yourdata, 20)) in your email to create a reproducible example?

Sarah

On Fri, Aug 16, 2013 at 9:08 AM,  <mohan.radhakrishnan at polarisft.com> wrote:
> My code is not complete. But the headers I see are
>
> USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
> 68        4517  0.0  0.0  12348   864 ?        S    Aug08   0:00
> hald-addon-keyboard: listening on /dev/input/event1
> 68        4521  0.0  0.0  12348   860 ?        S    Aug08   0:00
> hald-addon-keyboard: listening on /dev/input/event0
> root      4529  0.0  0.0  10256   704 ?        S    Aug08   1:57
> hald-addon-storage: polling /dev/sr0
>
> The last column value doesn't follow any rule.
>
> Thanks,
> Mohan
>
>
>
>
>
>    Re: [R] Output from unix PS
>
>
>    Sarah Goslee
>                  to:
>                    mohan.radhakrishnan
>                                                         16-08-2013 06:01 PM
>
>
> You don't tell us your OS details or provide an actual reproducible
> example, but the error suggests that COMMAND is not one of the column
> names in your data frame.
>
> Have you checked that? When I run ps on my Fedora system, the column
> name is CMD and not COMMAND.
>
> Sarah
>
> On Fri, Aug 16, 2013 at 7:30 AM,  <mohan.radhakrishnan at polarisft.com>
> wrote:
>> Hi,
>>
>> When I view this output from the unix command ''ps'' the columns seem to
>> properly aligned but it is not read properly into the data frame. The
>> aggregate function throws
>>
>> Error in aggregate.data.frame(data, by = list(COMMAND), FUN = sum) :
>>   object 'COMMAND' not found
>>
>> Is there a recomendation to massage this ?
>>
>> data = read.table("D:\\p..txt",sep="\t")
>>
>> agg<-aggregate(data,by=list(COMMAND),FUN=sum)
>>
>> 68        4524  0.0  0.0  12348   872 ?        S    Aug09   0:00
>> hald-addon-acpi: listening on acpid socket /var/run/acpid.socket
>> 68        4528  0.0  0.0  12348   860 ?        S    Aug09   0:00
>> hald-addon-keyboard: listening on /dev/input/event1
>> 68        4532  0.0  0.0  12348   864 ?        S    Aug09   0:00
>> hald-addon-keyboard: listening on /dev/input/event0
>> root      4540  0.0  0.0  10256   704 ?        S    Aug09   1:02
>> hald-addon-storage: polling /dev/sr0
>> root      4576  0.0  0.0   8540   492 ?        Ss   Aug09
>> 0:00 /usr/bin/hidd --server
>> root      4619  0.0  0.0 122008  1540 ?        Ssl  Aug09   0:00
> automount
>> root      4636  0.0  0.0  26348   524 ?        Ss   Aug09   0:00 ./hpiod
>> root      4641  0.0  0.0 154876  6428 ?        S    Aug09
>> 0:00 /usr/bin/python ./hpssd.py
>> root      4654  0.0  0.0  63544  1212 ?        Ss   Aug09
>> 0:00 /usr/sbin/sshd
>> root      4663  0.0  0.0 134208  2744 ?        Ss   Aug09   0:00 cupsd
>> root      4677  0.0  0.0  21668   896 ?        Ss   Aug09   0:00 xinetd
>> -stayalive -pidfile /var/run/xinetd.pid
>> root      4695  0.0  0.0  66968  2324 ?        Ss   Aug09   0:00
> sendmail:
>> accepting connections
>> smmsp     4703  0.0  0.0  57716  1760 ?        Ss   Aug09   0:00
> sendmail:
>> Queue runner at 01:00:00 for /var/spool/clientmqueue
>> root      4713  0.0  0.0   6480   372 ?        Ss   Aug09   0:00 gpm
>> -m /dev/input/mice -t exps2
>>
>> Thanks.
>>
>>
>>
> --
> Sarah Goslee
> http://www.functionaldiversity.org
>
>