Exponential Inverse CDF
x = distfun_expinv ( p , mu ) x = distfun_expinv ( p , mu , lowertail )
a matrix of doubles, the probability
a matrix of doubles, the average. mu>0
a 1-by-1 matrix of booleans, the tail (default lowertail=%t). If lowertail is true (the default), then considers P(X<=x) otherwise P(X>x).
a matrix of doubles
This function computes the Exponential Quantile.
Any scalar input argument is expanded to a matrix of doubles of the same size as the other input arguments.
Any optional input argument equal to the empty matrix will be set to its default value.
Wikipedia, Exponential distribution function, http://en.wikipedia.org/wiki/Exponential_distribution