Add getMean to Python PCA

Author: akenmorris

Libs/Python/ShapeworksPython.cpp

@@ -559,8 +559,7 @@ PYBIND11_MODULE(shapeworks_py, m) {
           [](Image& image, std::vector<double>& pt) -> decltype(auto) {
             return image.evaluate(Point({pt[0], pt[1], pt[2]}));
           },
-          "evaluate the image at any given point in space", "pt"_a)
-      ;
+          "evaluate the image at any given point in space", "pt"_a);
 
   // PhysicalRegion
   py::class_<PhysicalRegion>(m, "PhysicalRegion")
@@ -1309,9 +1308,10 @@ PYBIND11_MODULE(shapeworks_py, m) {
       .def("percentVarByMode", &ParticleShapeStatistics::get_percent_variance_by_mode,
            "return the variance accounted for by the principal components")
 
-      .def("projectNewSample", &ParticleShapeStatistics::project_new_sample,
-           "project a new sample into the PCA space", "newSample"_a)
-      ;
+      .def("projectNewSample", &ParticleShapeStatistics::project_new_sample, "project a new sample into the PCA space",
+           "newSample"_a)
+
+      .def("getMean", &ParticleShapeStatistics::get_mean, "returns the mean shape particles");
 
   define_python_analyze(m);
   define_python_groom(m);