3 files changed, 39 insertions, 0 deletions
diff --git a/statistics/chisq.hpp b/statistics/chisq.hpp
index 5f28d86..7c38b4e 100644
--- a/statistics/chisq.hpp
+++ b/statistics/chisq.hpp
@@ -1,3 +1,7 @@
+/**
+   \file chisq.hpp
+ */
+
 #ifndef CHI_SQ_HPP
 #define CHI_SQ_HPP
 #include <core/fitter.hpp>
@@ -8,6 +12,15 @@ using std::cerr;using std::endl;
 
 namespace opt_utilities
 {
+
+  /**
+     chi-square statistic
+     \tparam Ty the return type of model
+     \tparam Tx the type of the self-var
+     \tparam Tp the type of model parameter
+     \tparam Ts the type of the statistic
+     \tparam Tstr the type of the string used
+   */
   template<typename Ty,typename Tx,typename Tp,typename Ts,typename Tstr>
   class chisq
     :public statistic<Ty,Tx,Tp,Ts,Tstr>
diff --git a/statistics/cstat.hpp b/statistics/cstat.hpp
index 058523d..45e2920 100644
--- a/statistics/cstat.hpp
+++ b/statistics/cstat.hpp
@@ -1,3 +1,7 @@
+/**
+   \file cstat.hpp
+ */
+
 #ifndef CSTAT_HPP
 #define CSTAT_HPP
 #include <core/fitter.hpp>
@@ -6,6 +10,15 @@
 using std::cout;using std::endl;
 namespace opt_utilities
 {
+
+  /**
+     c-statistic, max-likelihood method
+     \tparam Ty the return type of model
+     \tparam Tx the type of the self-var
+     \tparam Tp the type of model parameter
+     \tparam Ts the type of the statistic
+     \tparam Tstr the type of the string used
+   */
   template<typename Ty,typename Tx,typename Tp,typename Ts,typename Tstr>
   class cstat
     :public statistic<Ty,Tx,Tp,Ts,Tstr>
diff --git a/statistics/leastsq.hpp b/statistics/leastsq.hpp
index 48b753a..6ac0adc 100644
--- a/statistics/leastsq.hpp
+++ b/statistics/leastsq.hpp
@@ -1,3 +1,7 @@
+/**
+   \file leastsq.hpp
+ */
+
 #ifndef LEAST_SQ_HPP
 #define LeAST_SQ_HPP
 #include <core/fitter.hpp>
@@ -8,6 +12,15 @@ using std::cerr;using std::endl;
 
 namespace opt_utilities
 {
+
+   /**
+     least-square statistic
+     \tparam Ty the return type of model
+     \tparam Tx the type of the self-var
+     \tparam Tp the type of model parameter
+     \tparam Ts the type of the statistic
+     \tparam Tstr the type of the string used
+   */
   template<typename Ty,typename Tx,typename Tp,typename Ts,typename Tstr>
   class leastsq
     :public statistic<Ty,Tx,Tp,Ts,Tstr>