Utils: Renamed sample_flatten.cpp to sample_element.cpp as suggested

utils/Makefile.am

@@ -9,7 +9,7 @@ endif
 bin_PROGRAMS =            \
     latan_make_fake_sample\
     latan_sample_combine  \
-    latan_sample_flatten  \
+    latan_sample_element  \
     latan_sample_plot_corr\
     latan_sample_read     \
     latan_resample
@@ -22,9 +22,9 @@ latan_sample_combine_SOURCES  = sample_combine.cpp
 latan_sample_combine_CXXFLAGS = $(COM_CXXFLAGS)
 latan_sample_combine_LDFLAGS  = -L../lib/.libs -lLatAnalyze
 
-latan_sample_flatten_SOURCES  = sample_flatten.cpp
-latan_sample_flatten_CXXFLAGS = $(COM_CXXFLAGS)
-latan_sample_flatten_LDFLAGS  = -L../lib/.libs -lLatAnalyze
+latan_sample_element_SOURCES  = sample_element.cpp
+latan_sample_element_CXXFLAGS = $(COM_CXXFLAGS)
+latan_sample_element_LDFLAGS  = -L../lib/.libs -lLatAnalyze
 
 latan_sample_plot_corr_SOURCES  = sample_plot_corr.cpp
 latan_sample_plot_corr_CXXFLAGS = $(COM_CXXFLAGS)

utils/sample_element.cpp

@@ -0,0 +1,39 @@
+#include <iostream>
+#include <string>
+
+#include <LatAnalyze/Io.hpp>
+#include <LatAnalyze/MatSample.hpp>
+
+
+int main(int argc, char* argv[])
+{
+    using namespace std;
+    using namespace Latan;
+
+    if (argc != 4 and argc != 5) {
+        cout << "Usage: " << argv[0] << " <input filename> <row> <column> ";
+        cout << "[output filename]" << endl;
+        return -1;
+    }
+
+    string inFileName = argv[1];
+    auto row = strTo<Index>(argv[2]);
+    auto col = strTo<Index>(argv[3]);
+    string outFileName = (argc == 5) ? argv[4] : "";
+
+    auto inputData = Io::load<DMatSample>(inFileName);
+    cout << scientific;
+    cout << "central value:\n" << inputData[central](row, col) << endl;
+    cout << "standard deviation:\n";
+    cout << inputData.variance().cwiseSqrt()(row, col) << endl;
+
+    if (not outFileName.empty())
+    {
+        DSample outputData(inputData.size());
+        FOR_STAT_ARRAY(inputData, s) {
+            outputData[s] = inputData[s](row, col);
+        }
+
+        Io::save(outputData, outFileName);
+    }
+}

utils/sample_flatten.cpp

@@ -1,31 +0,0 @@
-#include <iostream>
-#include <string>
-
-#include <LatAnalyze/Io.hpp>
-#include <LatAnalyze/MatSample.hpp>
-
-
-namespace La = Latan;
-
-int main(int argc, char* argv[])
-{  
-  if (argc != 4) {
-    std::cout << "Usage: " << argv[0] << " <input filename> <output filename> <num samples>" << std::endl;
-    return -1;
-  }
-
-  std::string inFileName = argv[1];
-  std::string outFileName = argv[2];
-  auto nSamples = La::strTo<La::Index>(argv[3]);
-
-  La::DMatSample inputData(nSamples, 1, 1);
-  La::DSample outputData(nSamples);
-
-  inputData = La::Io::load<La::DMatSample>(inFileName);
-
-  FOR_STAT_ARRAY(inputData, s) {
-    outputData[s] = inputData[s](0, 0);
-  }
-
-  La::Io::save(outputData, outFileName);
-}