docs: add citation request for Herbig2018

docs/sec_interface.rst

@@ -336,6 +336,8 @@ Regression analysis:
   Perform a regression analysis according to (general) linear mixed effects
   models. For more information, please see :ref:`sec_qg_mixed_effects` as
   well as the references :cite:`Herbig2017` and :cite:`Herbig2018`.
+  If you are using this feature in a scientific publication, please
+  consider citing :cite:`Herbig2018`.
 
 
 Plotting tabs

shapeout/gui/controls_analyze.py

@@ -231,7 +231,21 @@ def OnApply(self, e=None):
         # write to temporary file and display with webbrowser
         outf = tempfile.mktemp(prefix="regression_analysis_{}_".format(axname),
                                suffix=".txt")
+        # add citation request
+        citreq = [
+            "# If you are using these results in a scientific publication,",
+            "# please consider citing the following manuscript:",
+            "#",
+            "#  Herbig M, Mietke A, Müller P, Otto O (2018)",
+            "#  Statistics for real-time deformability cytometry: Clustering,",
+            "#  dimensionality reduction, and significance testing.",
+            "#  Biomicrofluidics 12:042214. doi: 10.1063/1.5027197",
+            "#",
+            "",
+            ]
+
         with io.open(outf, "w") as fd:
+            fd.writelines(citreq)
             fd.writelines(result["Full Summary"].replace("\n", "\r\n"))
 
         webbrowser.open(fd.name)