H
ello,

Did you read ?data.frame and ?expand.grid.

> data.frame(x=1:2, y=1:2)
  x y
1 1 1
2 2 2
> expand.grid(x=1:2, y=1:2)
  x y
1 1 1
2 2 1
3 1 2
4 2 2

There is a small difference, isn't it?

Regards,
Pascal


2013/6/28 Zhaoran Zhou <zhaoran1124@gmail.com>

> Hello everyone,
>
> i found that both of the 2 functions ("expand.grid" and "data.frame") can
> be used to produce data frame. are there any difference between them?
>
> thanks for your help!
>
> zhaoran
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

	[[alternative HTML version deleted]]

