A few useful statistics functions that are missing from Go standard library.

##Functions##

1. ErfInv

    ErfInv(x float64) -  returns inverse error function
   

2. InverserNormalCDF

    InverserNormalCDF(x float64) - returns inverse Normal CDF
   

3. InverseNormalDist

    InverseNormalDist(x float64) - returns inverse normal distribution function
   

###Apache commons-math library:###

http://commons.apache.org/proper/commons-math/apidocs/src-html/org/apache/commons/math3/special/Erf.html

###TI invnorm:###

http://tibasicdev.wikidot.com/invnorm

This library is released under the MIT license