[R] How to color certain area under curve

[Vincent Goulet]

I did similar things with polygon().

Le mar. 10 mars à 13:30, guox at ucalgary.ca a écrit :

> For a given random variable rv, for instance, rv = rnorm(1000),
> I plot its density curve and calculate some quantiles:
> plot(density(rv))
> P10P50P90 = = quantile(rv,probs = c(10,50,90)/100)
> I would like to color the area between P10 and P90 and under the curve
> and mark the P50 on the curve.
>
>> rv = rnorm(1000)
>> plot(density(rv))
>> P10P50P90 = = quantile(rv,probs = c(10,50,90)/100)
>
> Could you please teach me how to do these using R?
> Thanks,
> -james
>
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