I am confused by the following description in http://www.maths.lth.se/help/R/.R/library/systemfit/html/hausman.systemfit.html what does the "Not run" mean? if we do not load systemfit, how can we run the following code? ## Not run: library( systemfit ) data( kmenta ) attach( kmenta ) ... I install the package of systemfit, and run the code. I got the warning:> library( systemfit ) > data( kmenta ) > attach( kmenta )The following object(s) are masked from package:base : q [[alternative HTML version deleted]]
On Friday 02 December 2005 02:50, August Berg wrote:> I am confused by the following description in > http://www.maths.lth.se/help/R/.R/library/systemfit/html/hausman.systemfit. >html > > what does the "Not run" mean?This means that the command "library( systemfit )" is not executed when the package is checked by "R CMD check". @Jeff: I think we should remove "library( systemfit )" from the example section, because everybody should know this.> if we do not load systemfit, how can we run > the following code? > > ## Not run: library( systemfit ) > > data( kmenta ) > attach( kmenta ) > ... > > I install the package of systemfit, and run the code. > > I got the warning: > > library( systemfit ) > > data( kmenta ) > > attach( kmenta ) > > The following object(s) are masked from package:base : > > qThe data set "kmenta" has a (column) name called "q" R> names(kmenta) [1] "q" "p" "d" "f" "a" If you attach these data to the search path, there are two objects with the name "q": the quantity from Kmenta's data set and the function to quit R. Hence, attaching this data set masks the function "q" (quit) from the package called "base". However, you don't have to worry, because "q()" and "?q" still work as expected. @Jeff: Since using "attach" is often troublesome, I suggest that we remove "attach( kmenta )" from the example section and use "systemfit( ..., data = kmenta )" instead. Best wishes, Arne> > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html-- Arne Henningsen Department of Agricultural Economics University of Kiel Olshausenstr. 40 D-24098 Kiel (Germany) Tel: +49-431-880 4445 Fax: +49-431-880 1397 ahenningsen at agric-econ.uni-kiel.de http://www.uni-kiel.de/agrarpol/ahenningsen/
Arne Henningsen wrote:> On Friday 02 December 2005 10:21, August Berg wrote: > >>On 12/1/05, Arne Henningsen <ahenningsen at email.uni-kiel.de> wrote: >> >>>On Friday 02 December 2005 02:50, August Berg wrote: >>> >>>>I am confused by the following description in >>> >>>http://www.maths.lth.se/help/R/.R/library/systemfit/html/hausman.systemfi >>>t . >>> >>> >>>>html >>>> >>>>what does the "Not run" mean? >>> >>>This means that the command "library( systemfit )" is not executed when >>>the >>>package is checked by "R CMD check". >>> >>>@Jeff: I think we should remove "library( systemfit )" from the example >>>section, because everybody should know this. >> >>I am new to R and what does [checked by "R CMD check"] mean? > > > The source of an R package can be checked by the command > "R CMD check <package_name>" > (on a Unix/Linux machines; on Windows machines this is slightly different).In fact, it is exactly the same command on Windows. Uwe Ligges> Further information is available in the manual "Writing R Extensions". >
>> >> > The source of an R package can be checked by the command >> > "R CMD check <package_name>" >> > (on a Unix/Linux machines; on Windows machines this is slightly >> different). >> >> In fact, it is exactly the same command on Windows. >> >> Uwe Ligges > > >Why it did not work for me? >> library( systemfit ) >> R CMD check systemfit >Error: syntax error in "R CMD" >> R CMD check <systemfit> >Error: syntax error in "R CMD"I guess you try to use this command in R console.That's not the right way.you should use "R CMD ..." in the system shell. Maybe you use windows OS.In that case,you should take this steps: starts-run-type cmd in it and then enter- then type R CMD check in cmd console. of course,you should set where Rterm.exe to the path of windows system.> [[alternative HTML version deleted]] > >______________________________________________ >R-help at stat.math.ethz.ch mailing list >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html= = = = = = = = = = = = = = = = = = = 2005-12-02 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com