You haven't provided any code so we have no idea what
the problem is. Make sure you have read the troubleshooting
sections on the home page?
http://ryacas.googlecode.com
Here is an example:
> library(Ryacas)
Loading required package: XML> x <- Sym("x")
> Factor(x^2-1)
[1] "Starting Yacas!"
expression((x + 1) * (x - 1))
You can also try the rSymPy package.
Installation has fewer gotchas:
> library(rSymPy)
Loading required package: rJava> sympy("var('x')") # define x to be symbolic
[1] "x"> sympy("factor(x**2-1)")
[1] "-(1 + x)*(1 - x)"
See home page at http://rsympy.googlecode.com
On Tue, May 5, 2009 at 6:41 PM, Hassan Mohamed
<hassan_hany_fahmy at yahoo.com> wrote:> Hi,
> as I find problems with yacas package...
> is there any R function equivalent to the yacas function "Factor"
?
> the factor function which i found in the R help is not the same.
> it doesn't factor an algebraic expression......
> thanks
> hassan
>
>
>
>
> ? ? ? ?[[alternative HTML version deleted]]
>
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