CODEWITHSUNDEEP
rstatisticscurveprobability-density
Apple_Tree
Apple_Tree

Reputation: 49

Plot density curve in R with two density functions

I am struggling to create a continuous density curve in R for the below pdf:

{ 3x(1-x)^2     0 < x < 1

f(x) = { 3(2-x)(1-x)^2  1 ≤ x  < 2

{ 0              otherwise

Using the curve function, I can plot the two functions separately but not together:

curve(3*x*(1-x)^2,0,1)

curve(3*(2-x)*(1-x)^2,1,2)

Any help would be appreciated?

Upvotes: 2

Views: 298

Answers (1)

G5W
G5W

Reputation: 37661

You can start with an empty graph and then put together these pieces with add=TRUE. 

plot(NULL, xlim=c(0,2), ylim=c(0,0.5))
curve(3*x*(1-x)^2,0,1, add=TRUE)
curve(3*(2-x)*(1-x)^2,1,2, add=TRUE)

Two curves

Upvotes: 3

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