[R] system() under windows [x] but not with Mac

Joshua Wiley jwiley.psych at gmail.com
Mon May 21 17:22:06 CEST 2012


On Mon, May 21, 2012 at 6:25 AM, David Winsemius <dwinsemius at comcast.net> wrote:
>
> On May 20, 2012, at 6:49 PM, barb wrote:
>
>> Hey Guys,
>>
>> i am kind of confused. Under windows the system() function works great,
>> but
>> not with my mac.
>>  I have two questions:
>>
>> 1) What do i have to change. Using packages which require system or
>> eval(parse() everything is fine, but
>> when i try it myself "sh: cmd: command not found"
>> Under windows i use e.g system('cmd /c copy "bild.jpg"',intern=FALSE )
>
>
> There is no 'cmd' system function in MacOSX.
>
> system("cp q.csv q2.csv")  # succeeds in making a copy of an existing file
> in the working directory
>
>
>>
>> 2) I really love the Hmisc/latex function and want to be able to do it
>> myself.
>>   How could i save a text in my notepad as name.txt
>
>
> I do not understand what the problem is. What is meant by "do it"? What is
> the "notepad"?

Geez, David, clearly the OP wants R to call the webcam to grab images
of a notepad, perform text recognition on those images, and store the
text in name.txt

...what do you mean when you say save the text in your notepad?

>
> --
>
> David Winsemius, MD
> West Hartford, CT
>
>
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-- 
Joshua Wiley
Ph.D. Student, Health Psychology
Programmer Analyst II, Statistical Consulting Group
University of California, Los Angeles
https://joshuawiley.com/



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