Output number of input points

1 files changed, 3 insertions, 1 deletions

diff --git a/stddev.cpp b/stddev.cpp
index b652b8a..ee36af4 100644
--- a/stddev.cpp
+++ b/stddev.cpp
@@ -32,6 +32,7 @@ int main(int,char **argv){
 
 	sort(data.begin(),data.end());
 
+	const double s_count=data.size();
 	const double s_mean=total/data.size();
 	const double s_median=data[data.size()/2];
 
@@ -42,7 +43,8 @@ int main(int,char **argv){
 	const double s_stddev=data.size()==1?nan(""):sqrt(total/(data.size()-1));
 	const double s_stderr=s_stddev/sqrt(data.size());
 
-	cout<<"Mean:   "<<s_mean<<'\n'
+	cout<<"Count:  "<<s_count<<'\n'
+	    <<"Mean:   "<<s_mean<<'\n'
 	    <<"Stddev: "<<s_stddev<<'\n'
 	    <<"Stderr: "<<s_stderr<<'\n'
 	    <<"Median: "<<s_median<<endl;