From f615be41f077464a6af5fdddf2b7da01aff62654 Mon Sep 17 00:00:00 2001
From: "Dr. Kashif Rasul" <kashif.rasul@gmail.com>
Date: Mon, 6 Apr 2020 12:09:38 +0200
Subject: [PATCH] Revert "scale alpha so that the var stays the same"

This reverts commit 3c6bbf28d7022771dfe0e4b121da3810688e9a9c.
---
 pts/modules/distribution_output.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pts/modules/distribution_output.py b/pts/modules/distribution_output.py
index f1c9582..ad08783 100644
--- a/pts/modules/distribution_output.py
+++ b/pts/modules/distribution_output.py
@@ -136,8 +136,8 @@ class NegativeBinomialOutput(DistributionOutput):
         mu, alpha = distr_args
 
         if scale is not None:
-            alpha = (1 - scale + mu*alpha)/(mu*scale*scale)
-            mu = mu*scale
+            mu *= scale
+            alpha /= scale
 
         n = 1.0 / alpha
         p = mu * alpha / (1.0 + mu * alpha)