如何运行的R积成C / C ++? [英] how to run plot of R into C/C++?
问题描述
我如何用C执行R指令,而无需使用R附加,是这样的:
INT的main(){ 系统(R G< - 图(C(0,1,0,4,0,9,1,7,1,9,2,9,2,3,2,5,3,6,3,9 ,4,5,4,8,5,8,6,7,6,8,7,8),N = 10,DIR = FALSE)
图(七)) 返回(0)
}
您可以使用 - [R系统()调用,你必须跑,但你不能像在命令行上粘贴R里面的函数。
你可以做的是在R code写入文件和称它为系统(R CMD批foo.R)
- 微创:
的main(){系统(R CMD批test.R);}
现在,在默认情况下从研发CMD批的图形输出到PDF文件,所以您需要打开一个图形窗口,使脚本暂停,如果你想看到它。
当然您test.R文件可能被你的C code写的运行它之前,你可以把它放在一个临时目录或东西。
How do I execute a R command in C, without using R extensions, something like:
int main() {
system("R g<- graph(c(0,1,0,4,0,9,1,7,1,9,2,9,2,3,2,5,3,6,3,9,4,5,4,8,5,8,6,7,6,8,7,8),n=10,dir=FALSE)
plot(g)")
return(0)
}
You can run R using the system() call as you have, but you can't stick R functions on the command line like that.
What you can do is to write the R code to a file and call it with system("R CMD BATCH foo.R")
- minimally:
main(){system("R CMD BATCH test.R");}
Now, by default the output graphics from R CMD BATCH go to a PDF file, so you need to open a graphics window and make the script pause if you want to see it.
Of course your test.R file could be written by your C code before it runs it, and you could keep it in a temporary directory or something.
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