[R] R: how can draw probability density plot?
Vito Ricci
vito_ricci at yahoo.com
Mon Nov 15 13:50:40 CET 2004
I hope this example could help you
best
vito
> x<-seq(-3.5,3.5,0.1)
> x
[1] -3.5 -3.4 -3.3 -3.2 -3.1 -3.0 -2.9 -2.8 -2.7 -2.6
-2.5 -2.4 -2.3 -2.2 -2.1
[16] -2.0 -1.9 -1.8 -1.7 -1.6 -1.5 -1.4 -1.3 -1.2 -1.1
-1.0 -0.9 -0.8 -0.7 -0.6
[31] -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4
0.5 0.6 0.7 0.8 0.9
[46] 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9
2.0 2.1 2.2 2.3 2.4
[61] 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4
3.5
>d<- dnorm(x,0,1)
> plot(d),type="l")
you wrote:
Dear support,
I want to draw a probability density plot in R. For
example, I provide the mean and variance of a normal
distribution, then R can provide me the probability
density plot. Now I always generate random numbers of
normal distribution and calculate their dnorm(mu,
var), finally plot them. I am eager to know some
directly operation.
Thank you for your attention.
I am looking forward to hearing from you soon.
Best regards,
Long Yu
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