1 files changed, 3 insertions, 4 deletions
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/create_pssk.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/create_pssk.cpp
index 7b24bb7c..6aefbb00 100644
--- a/src/Persistence_representations/utilities/persistence_heat_maps/create_pssk.cpp
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/create_pssk.cpp
@@ -22,14 +22,13 @@
 
 #include <gudhi/PSSK.h>
 
-using namespace Gudhi;
-using namespace Gudhi::Persistence_representations;
-
 #include <iostream>
 #include <sstream>
 #include <limits>
 #include <vector>
 
+using PSSK = Gudhi::Persistence_representations::PSSK;
+
 int main(int argc, char** argv) {
   std::cout << "This program creates PSSK of diagrams provided as an input.\n";
   std::cout << "The first parameter of a program is an integer, a size of a grid.\n";
@@ -67,7 +66,7 @@ int main(int argc, char** argv) {
   }
 
   std::cout << "Creating persistence heat maps...\n";
-  std::vector<std::vector<double> > filter = create_Gaussian_filter(stdiv, 1);
+  std::vector<std::vector<double> > filter = Gudhi::Persistence_representations::create_Gaussian_filter(stdiv, 1);
 
   for (size_t i = 0; i != filenames.size(); ++i) {
     std::cout << "Creating a heat map based on a file : " << filenames[i] << std::endl;