Plot two functions in one plot in rstudio

Question

I have two functions

fun1 <- function(x) -(2 * (sin(x) * cos(x)))
fun2 <- function(x) 2 * (cos(x) * sin(x))

I want to plot them both in one diagram. I have the parametrization

\gamma (x) =(-2*sin(x)*cos(x),2*cos(x)*sin(x))

And actually if it was possible I want ONE function (ex.fun3) where both is defined and then plot fun3 instead of defining one for each. Can someone help me with both questions?

Regards,

s

score 0 · Accepted Answer · answered Feb 01 '18 at 11:27

0

check here

https://rpubs.com/kaz_yos/ggplot2-stat-function

fun1 <- function(x) {-(2 * (sin(x) * cos(x)))}
    fun2 <- function(x) {(2 * cos(x) * sin(x))}
    ggplot(data=data.frame(0)) + stat_function(fun = fun1) + stat_function(fun = fun2)+xlim(-3,3)

answered Feb 01 '18 at 11:27

Antonios

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Thanks, but is there a way to define a function fun3=(fun1,fun2) – schwartz Feb 01 '18 at 11:51
when trying to use above, it says error could not find function ggplot – schwartz Feb 01 '18 at 12:03
ok you have to install and load ggplot2 library: install.packages("ggplot2");library(ggplot2) and then run the code – Antonios Feb 01 '18 at 12:25

Plot two functions in one plot in rstudio

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