number of failures until experiment is stopped
success probability
excess kurtosis
var v = kurtosis( 100, 0.2 );
// returns ~0.061
var v = kurtosis( 20, 0.5 );
// returns ~0.325
var v = kurtosis( 10.3, 0.8 );
// returns ~0.893
var v = kurtosis( -2, 0.5 );
// returns NaN
var v = kurtosis( 20, 1.1 );
// returns NaN
var v = kurtosis( 20, NaN );
// returns NaN
var v = kurtosis( NaN, 0.5 );
// returns NaN
Returns the excess kurtosis of a negative binomial distribution.
Notes
r
which is not a positive number, the function returnsNaN
.p < 0
orp > 1
, the function returnsNaN
.