On 04/12/2012 09:11 PM, David Winsemius wrote:
On Apr 12, 2012, at 3:49 PM, Aye wrote:
Okay, i got this far:
f <- function(x) 0.25*x^2 + 6.47*x -32.6
g <- function(x) 0.99*x^2 -6*x -195
h <- function(x) 0.77*x^2 +14*x -495
j <- function(x) 0.001*x^2 + 65*x -785
k <- function(x) 0.9*x^2 -2*x -6
On Apr 12, 2012, at 3:49 PM, Aye wrote:
Okay, i got this far:
f <- function(x) 0.25*x^2 + 6.47*x -32.6
g <- function(x) 0.99*x^2 -6*x -195
h <- function(x) 0.77*x^2 +14*x -495
j <- function(x) 0.001*x^2 + 65*x -785
k <- function(x) 0.9*x^2 -2*x -63
Okay, i got this far:
f <- function(x) 0.25*x^2 + 6.47*x -32.6
g <- function(x) 0.99*x^2 -6*x -195
h <- function(x) 0.77*x^2 +14*x -495
j <- function(x) 0.001*x^2 + 65*x -785
k <- function(x) 0.9*x^2 -2*x -636
plot(x, f(x), xlab="Elemente in der R
Hi,
you can use the curve() function for this. It is dedicated to plotting
functions.
Here is an example
# turn your functions into r functions
f <- function(x) 0.25 * x^2 + 6.47 * x -32.6
g <- function(x) 0.99*x^2 -6*x -195
j <- function(x) 0.77*x^2 + 14*x -495
k <- functi
It seems that your first problem is syntax:
2x
will thrown an error, while
2*x
won't.
Google around for a good intro tutorial (there's the main one you can
access by typing help.start() and it's quite good) and these sorts of
things will be explained.
You might also want to use the curve func
Hi,
At the moment I am studying R at school.
But I found this site very useful to explain the plot functions to me:
http://www.harding.edu/fmccown/r/
Maybe that can help you too?
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http://r.789695.n4.nabble.com/Simple-Problem-Plotting-mathematical-functions
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