On Tue, 15 May 2007 02:40:55 +0000 (UTC)
John Owens wrote:
> Would LOVE to get some help with the "matplot" function.
>
> > Plot the columns of one matrix against the columns of another.
> > matplot(x, y)
> > x,y: vectors or matrices of data for plotting. The number of rows
> > should match. If one of them are missing, the other is taken
> > as 'y' and an 'x' vector of '1:n' is used. Missing values
> > ('NA's) are allowed.
>
General rule. Make sure it works first in R
> Here's something that works:
>
> r.matplot([1,2,3], [4,5,6])
matplot(c(1,2,3),c(4,5,6))
>
> This plots (1,3), (2,4), (3,5).
NO. 1,4; 2,5; 3,6
>
> What I want is to plot a second dataset against (1,2,3).
>
> These things don't work:
>
> r.matplot([1,2,3], [[4,5,6],[7,8,9]])
> 'x' and 'y' must have same number of rows
matplot((c(1,2,3),cbind(c(4,5,6),c(7,8,9)))
r.matplot([1,2,3], r.cbind([4,5,6],[7,8,9]))
>>> test = r.cbind([4,5,6],[7,8,9])
>>> test
array([[4, 7],
[5, 8],
[6, 9]])
HTH
T
--
Trevor Wiens
[EMAIL PROTECTED]
The significant problems that we face cannot be solved at the same
level of thinking we were at when we created them.
(Albert Einstein)
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