On 25.07.2011 02:34, Aimee Jones wrote:
Thanks for your assistance, this worked perfectly, and sorry for
posting in html! I shall check it's plain text for future postings..
Would it be possible for you to explain why this works? I'm unsure as
to why redefining t works, when t is perfectly defined within the
script previously.
You tried to pass a function definition to plot() or curve(). That's
fine. But in a function definition you have to give names to arguments
that are passed to the function's body. That's R semantic. Just take a
look in the documentation on how to define fnctions in R.
Best,
Uwe Ligges
Thank you for any further help,
Aimee
2011/7/24 Uwe Ligges<lig...@statistik.tu-dortmund.de>
On 23.07.2011 00:50, Aimee Jones wrote:
Hi all,
I'm having trouble locating a script that will allow to me to create graphs
that show compound functions as a function of the simple function, rather
than just x (or time as it is in my case).
Currently I have the following functions defined in my script:
T1<-function(t) {27.5-12.5*cos(2*pi*t/365)**}
This is not syntactically correct. Perhaps some leftovers of your html message.
The posting guide asks you *not* to send html mail!
and
B1<-function(T1,t) {dnorm(T1(t),mean=22.5,sd=**3.3)}
plot(function(t) {B1(T1,t)}, 0, 365) plots B1 as a function of time, whereas
I am looking for a code that allows me to plot B1 as a function of T1. I
tried plot(function(T1(t) {B1(T1,t)}, 0, 365) and also plot(function(T1,t)
{B1(T1,t)}, 0, 365), neither of which worked. My coding skills are very
limited, and I'm somewhat out of ideas..
So you probably want something along the lines:
t<- seq(0, 365, length=1000)
plot(T1(t), B1(T1, t), type="l")
Uwe Ligges
Thank you for any assistance you are able to give,
yours sincerely,
Aimee
ps: If it's relevant I'm using R64 (R 2.11.1) on a Mac
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