[R] densities greater than 1 for values within an (0, 1) intervall

Jeff Newmiller jdnewmil at dcn.davis.ca.us
Mon Jul 12 19:13:40 CEST 2010


There is no constraint on the magnitude of probability density values, though the area under the curve must be equal to one. You may be thinking of cumulative probability distributions? If so, take a look at smoothed.df() in library (cwhmisc).

"Katja Hillmann" <katja.hillmann at wiso.uni-hamburg.de> wrote:

>Hello,
>
>I used the command kdensity in order to calculate the density of 
>fractions/ratios (e.g. number of longterm unemployed on total 
>unemployment). Thus I try to calculate the denisty of values less than 
>1. However, the values of the kernel densitiy R provided (y-scale) are 
>all greater than 1. Where is the problem and how may I solve it? Does R 
>have problems in calculating distributions of variables within an 
>intervall of 0 and 1?
>
>Best,
>Katja
>
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