From c515c7edac57e43b0cb6cc6a7fe823b5b0842dd3 Mon Sep 17 00:00:00 2001
From: Matthieu Gomez <gomez.matthieu@gmail.com>
Date: Fri, 20 Mar 2015 16:11:47 -0400
Subject: [PATCH] no observations

In case no observations, correct error message + catch early
---
 binscatter.ado | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/binscatter.ado b/binscatter.ado
index 85d2947..4d5bfdf 100644
--- a/binscatter.ado
+++ b/binscatter.ado
@@ -136,6 +136,10 @@ program define binscatter, eclass sortpreserve
 	markout `touse' `by' `xq' `controls' `absorb', strok
 	qui count if `touse'
 	local samplesize=r(N)
+	if `samplesize' == 0{
+		display as error "no observations" 
+		exit 2000
+	}
 	local touse_first=_N-`samplesize'+1
 	local touse_last=_N