Restoring authorship annotation for <alex-sh@yandex-team.ru>. Commit 1 of 2.

1 files changed, 93 insertions, 93 deletions

diff --git a/library/cpp/linear_regression/welford.cpp b/library/cpp/linear_regression/welford.cpp
index e27b1994f6..e1539fd506 100644
--- a/library/cpp/linear_regression/welford.cpp
+++ b/library/cpp/linear_regression/welford.cpp
@@ -1,106 +1,106 @@
-#include "welford.h"
+#include "welford.h" 
 
 #include <util/generic/ymath.h>
-
-void TMeanCalculator::Multiply(const double value) {
-    SumWeights *= value;
-}
-
-void TMeanCalculator::Add(const double value, const double weight /*= 1.*/) {
-    SumWeights += weight;
-    if (SumWeights.Get()) {
-        Mean += weight * (value - Mean) / SumWeights.Get();
-    }
-}
-
-void TMeanCalculator::Remove(const double value, const double weight /*= 1.*/) {
-    SumWeights -= weight;
-    if (SumWeights.Get()) {
-        Mean -= weight * (value - Mean) / SumWeights.Get();
-    }
-}
-
-double TMeanCalculator::GetMean() const {
-    return Mean;
-}
-
-double TMeanCalculator::GetSumWeights() const {
-    return SumWeights.Get();
-}
-
+ 
+void TMeanCalculator::Multiply(const double value) { 
+    SumWeights *= value; 
+} 
+ 
+void TMeanCalculator::Add(const double value, const double weight /*= 1.*/) { 
+    SumWeights += weight; 
+    if (SumWeights.Get()) { 
+        Mean += weight * (value - Mean) / SumWeights.Get(); 
+    } 
+} 
+ 
+void TMeanCalculator::Remove(const double value, const double weight /*= 1.*/) { 
+    SumWeights -= weight; 
+    if (SumWeights.Get()) { 
+        Mean -= weight * (value - Mean) / SumWeights.Get(); 
+    } 
+} 
+ 
+double TMeanCalculator::GetMean() const { 
+    return Mean; 
+} 
+ 
+double TMeanCalculator::GetSumWeights() const { 
+    return SumWeights.Get(); 
+} 
+ 
 void TMeanCalculator::Reset() {
     *this = TMeanCalculator();
 }
 
-void TCovariationCalculator::Add(const double firstValue, const double secondValue, const double weight /*= 1.*/) {
-    SumWeights += weight;
-    if (SumWeights.Get()) {
-        FirstValueMean += weight * (firstValue - FirstValueMean) / SumWeights.Get();
-        Covariation += weight * (firstValue - FirstValueMean) * (secondValue - SecondValueMean);
-        SecondValueMean += weight * (secondValue - SecondValueMean) / SumWeights.Get();
-    }
-}
-
-void TCovariationCalculator::Remove(const double firstValue, const double secondValue, const double weight /*= 1.*/) {
-    SumWeights -= weight;
-    if (SumWeights.Get()) {
-        FirstValueMean -= weight * (firstValue - FirstValueMean) / SumWeights.Get();
-        Covariation -= weight * (firstValue - FirstValueMean) * (secondValue - SecondValueMean);
-        SecondValueMean -= weight * (secondValue - SecondValueMean) / SumWeights.Get();
-    }
-}
-
-double TCovariationCalculator::GetFirstValueMean() const {
-    return FirstValueMean;
-}
-
-double TCovariationCalculator::GetSecondValueMean() const {
-    return SecondValueMean;
-}
-
-double TCovariationCalculator::GetCovariation() const {
-    return Covariation;
-}
-
-double TCovariationCalculator::GetSumWeights() const {
-    return SumWeights.Get();
-}
-
+void TCovariationCalculator::Add(const double firstValue, const double secondValue, const double weight /*= 1.*/) { 
+    SumWeights += weight; 
+    if (SumWeights.Get()) { 
+        FirstValueMean += weight * (firstValue - FirstValueMean) / SumWeights.Get(); 
+        Covariation += weight * (firstValue - FirstValueMean) * (secondValue - SecondValueMean); 
+        SecondValueMean += weight * (secondValue - SecondValueMean) / SumWeights.Get(); 
+    } 
+} 
+ 
+void TCovariationCalculator::Remove(const double firstValue, const double secondValue, const double weight /*= 1.*/) { 
+    SumWeights -= weight; 
+    if (SumWeights.Get()) { 
+        FirstValueMean -= weight * (firstValue - FirstValueMean) / SumWeights.Get(); 
+        Covariation -= weight * (firstValue - FirstValueMean) * (secondValue - SecondValueMean); 
+        SecondValueMean -= weight * (secondValue - SecondValueMean) / SumWeights.Get(); 
+    } 
+} 
+ 
+double TCovariationCalculator::GetFirstValueMean() const { 
+    return FirstValueMean; 
+} 
+ 
+double TCovariationCalculator::GetSecondValueMean() const { 
+    return SecondValueMean; 
+} 
+ 
+double TCovariationCalculator::GetCovariation() const { 
+    return Covariation; 
+} 
+ 
+double TCovariationCalculator::GetSumWeights() const { 
+    return SumWeights.Get(); 
+} 
+ 
 void TCovariationCalculator::Reset() {
     *this = TCovariationCalculator();
 }
 
-void TDeviationCalculator::Add(const double value, const double weight /*= 1.*/) {
-    const double lastMean = MeanCalculator.GetMean();
-    MeanCalculator.Add(value, weight);
-    Deviation += weight * (value - lastMean) * (value - MeanCalculator.GetMean());
-}
-
-void TDeviationCalculator::Remove(const double value, const double weight /*= 1.*/) {
-    const double lastMean = MeanCalculator.GetMean();
-    MeanCalculator.Remove(value, weight);
-    Deviation -= weight * (value - lastMean) * (value - MeanCalculator.GetMean());
-}
-
-double TDeviationCalculator::GetMean() const {
-    return MeanCalculator.GetMean();
-}
-
-double TDeviationCalculator::GetDeviation() const {
-    return Deviation;
-}
-
-double TDeviationCalculator::GetStdDev() const {
-    const double sumWeights = GetSumWeights();
-    if (!sumWeights) {
-        return 0.;
-    }
-    return sqrt(GetDeviation() / sumWeights);
-}
-
-double TDeviationCalculator::GetSumWeights() const {
-    return MeanCalculator.GetSumWeights();
-}
+void TDeviationCalculator::Add(const double value, const double weight /*= 1.*/) { 
+    const double lastMean = MeanCalculator.GetMean(); 
+    MeanCalculator.Add(value, weight); 
+    Deviation += weight * (value - lastMean) * (value - MeanCalculator.GetMean()); 
+} 
+ 
+void TDeviationCalculator::Remove(const double value, const double weight /*= 1.*/) { 
+    const double lastMean = MeanCalculator.GetMean(); 
+    MeanCalculator.Remove(value, weight); 
+    Deviation -= weight * (value - lastMean) * (value - MeanCalculator.GetMean()); 
+} 
+ 
+double TDeviationCalculator::GetMean() const { 
+    return MeanCalculator.GetMean(); 
+} 
+ 
+double TDeviationCalculator::GetDeviation() const { 
+    return Deviation; 
+} 
+ 
+double TDeviationCalculator::GetStdDev() const { 
+    const double sumWeights = GetSumWeights(); 
+    if (!sumWeights) { 
+        return 0.; 
+    } 
+    return sqrt(GetDeviation() / sumWeights); 
+} 
+ 
+double TDeviationCalculator::GetSumWeights() const { 
+    return MeanCalculator.GetSumWeights(); 
+} 
 
 void TDeviationCalculator::Reset() {
     *this = TDeviationCalculator();