Merge branch 'master' of https://code.mrmelon54.com/alfred/LearningCPP

CppTutorial.cbp

@@ -33,6 +33,8 @@
 			<Add option="-fexceptions" />
 		</Compiler>
 		<Unit filename="main.cpp" />
+		<Unit filename="stats.cpp" />
+		<Unit filename="stats.h" />
 		<Extensions />
 	</Project>
 </CodeBlocks_project_file>

main.cpp

@@ -47,3 +47,4 @@ string prompts(const string &message, bool *success) {
     *success = true;
     return tr;
 }
+

stats.cpp

@@ -0,0 +1,21 @@
+#include "stats.h"
+#include <vector>
+#include <algorithm>
+
+double med(std::vector<double> &scores,bool ignoreExtremes) {
+    const auto len = scores.size() - (ignoreExtremes && scores.size() > 2) ? 2 : 0;
+    sort(scores.begin(), scores.end());
+    using vec_size = std::vector<double>::size_type;
+    const vec_size middle = (vec_size) (len / 2);
+    if (middle%2 == 1)
+        return scores[middle];
+    else
+        return (scores[middle - 1] + scores[middle]) / 2.0;
+}
+
+double avg(const std::vector<double> &scores,bool ignoreExtremes) {
+    auto sum = 0.0;
+    using vec_size = std::vector<double>::size_type;
+    for (vec_size i = (ignoreExtremes && scores.size() > 2) ? 1 : 0; i < scores.size() - (ignoreExtremes && scores.size() > 2) ? 1 : 0; i++) sum += scores[i];
+    return sum / static_cast<double>(scores.size() - (ignoreExtremes && scores.size() > 2) ? 2 : 0);
+}

stats.h

@@ -0,0 +1,9 @@
+#ifndef STATS_H_INCLUDED
+#define STATS_H_INCLUDED
+
+#include <vector>
+
+double med(std::vector<double> &scores,bool ignoreExtremes);
+double avg(const std::vector<double> &scores,bool ignoreExtremes);
+
+#endif // STATS_H_INCLUDED