shape parameter
scale parameter
location parameter
mean
var y = mean( 5.0, 2.0, 0.0 );
// returns ~2.328
var y = mean( 5.0, 2.0, -4.0 );
// returns ~-1.672
var y = mean( 1.0, 1.0, 0.0 );
// returns Infinity
var y = mean( NaN, 1.0, 0.0 );
// returns NaN
var y = mean( 1.0, NaN, 0.0 );
// returns NaN
var y = mean( 1.0, 1.0, NaN );
// returns NaN
Returns the expected value for a Fréchet distribution with shape
alpha
, scales
, and locationm
.Notes
0 < alpha <= 1
ands > 0
, the function returns positive infinity.alpha <= 0
ors <= 0
, the function returnsNaN
.