diff --git a/code/machine_learning/ml_trainlda.m b/code/machine_learning/ml_trainlda.m
index 15d28b15..e010cd62 100644
--- a/code/machine_learning/ml_trainlda.m
+++ b/code/machine_learning/ml_trainlda.m
@@ -161,4 +161,5 @@
     w = (mu{2} - mu{1}) / sig_both;
     w = w / (mu{2}*w' - mu_both*w');
     model = struct('w',{w}, 'b',{mu_both*w'}, 'classes',{classes},'featuremask',{retain},'lams',{lams});
+    1;
 end
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/Contents.m b/dependencies/PropertyGrid-2010-09-16-mod/Contents.m
index 715427c7..0d9c6d38 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/Contents.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/Contents.m
@@ -31,8 +31,8 @@
 %   javaStringArray        - Converts a MatLab cell array of strings into a java.lang.String array.
 %
 % String utility functions
-%   strjoin                - Concatenates a cell array of strings.
-%   strsplit               - Splits a string into a cell array of strings.
+%   strjoin2                - Concatenates a cell array of strings.
+%   strsplit2               - Splits a string into a cell array of strings.
 %   var2str                - Textual representation of any MatLab value.
 %   strsetmatch            - Indicator of which elements of a universal set are in a particular set.
 %
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/JidePropertyGridField.m b/dependencies/PropertyGrid-2010-09-16-mod/JidePropertyGridField.m
index e3d70224..731cd202 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/JidePropertyGridField.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/JidePropertyGridField.m
@@ -242,7 +242,7 @@
         
         % find the JidePropertyGridField with the given dot-notated name in an array
         function self = FindByName(selfarray, name)        
-            self = selfarray.FindByNameRecurse(strsplit(name, '.'));
+            self = selfarray.FindByNameRecurse(strsplit2(name, '.'));
         end
 
         % deallocate registered editor context guts
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/PropertyGrid.m b/dependencies/PropertyGrid-2010-09-16-mod/PropertyGrid.m
index 78b37e57..9ffac0dc 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/PropertyGrid.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/PropertyGrid.m
@@ -387,9 +387,9 @@ function OnKeyPressed(obj, event)
                     name = PropertyGrid.GetSelectedProperty(obj);
                     self = PropertyGrid.FindPropertyGrid(obj, 'Table');
                     if ~isempty(name) && ~isempty(self.BoundItem)  % help
-                        nameparts = strsplit(name, '.');
+                        nameparts = strsplit2(name, '.');
                         if numel(nameparts) > 1
-                            helpobject = nestedfetch(self.BoundItem, strjoin('.', nameparts(1:end-1)));
+                            helpobject = nestedfetch(self.BoundItem, strjoin2('.', nameparts(1:end-1)));
                         else
                             helpobject = self.BoundItem;
                         end
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/PropertyGridField.m b/dependencies/PropertyGrid-2010-09-16-mod/PropertyGridField.m
index fa52460f..0b2aaa1a 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/PropertyGridField.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/PropertyGridField.m
@@ -384,7 +384,7 @@ function WireHierarchy(selfarray, descendants)
         %    hu.bme.aut.www (not a direct child)
             names = getclassfield(selfarray, 'Name');
             if iscell(filterprefix)
-                prefix = [strjoin('.', filterprefix) '.'];
+                prefix = [strjoin2('.', filterprefix) '.'];
             else
                 prefix = [filterprefix '.'];
             end
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/PropertyType.m b/dependencies/PropertyGrid-2010-09-16-mod/PropertyType.m
index 95732b39..eda83a55 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/PropertyType.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/PropertyType.m
@@ -249,7 +249,7 @@
                             end
                         case 'cellstr'
                             if ~isempty(value)
-                                javavalue = java.lang.String(strjoin(sprintf('\n'), value));
+                                javavalue = java.lang.String(strjoin2(sprintf('\n'), value));
                             else
                                 javavalue = java.lang.String();
                             end
@@ -314,7 +314,7 @@
                                 return;
                             end
                         case 'cellstr'
-                            value = strsplit(javavalue);
+                            value = strsplit2(javavalue);
                         case 'logical'
                             if ~isempty(self.Domain)
                                 value = strsetmatch(cell(javavalue), self.Domain);
@@ -449,7 +449,7 @@
             end
             if ~isempty(self.Domain)
                 if iscellstr(self.Domain)
-                    s = [s ' ' strjoin(',', self.Domain)];
+                    s = [s ' ' strjoin2(',', self.Domain)];
                 elseif isnumeric(self.Domain)
                     s = [s ' ' mat2str(self.Domain)];
                 end
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/helpdialog.m b/dependencies/PropertyGrid-2010-09-16-mod/helpdialog.m
index 3372922e..ecd1b3de 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/helpdialog.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/helpdialog.m
@@ -68,7 +68,7 @@ function helpdialog(obj)
     % help text
     rgb = get(fig, 'Color');
     text = cellfun(@(line) helpdialog_html(line), text, 'UniformOutput', false);
-    html = ['<html>' strjoin(sprintf('\n'), text) '</html>'];
+    html = ['<html>' strjoin2(sprintf('\n'), text) '</html>'];
     jtext = javax.swing.JLabel(html);
     jcolor = java.awt.Color(rgb(1), rgb(2), rgb(3));
     jtext.setBackground(jcolor);
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/nestedassign.m b/dependencies/PropertyGrid-2010-09-16-mod/nestedassign.m
index cb9dbe68..015b7a53 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/nestedassign.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/nestedassign.m
@@ -25,7 +25,7 @@
 % Copyright 2010 Levente Hunyadi
 function obj = nestedassign(obj, name, value)
     if ~iscell(name)
-        nameparts = strsplit(name, '.');
+        nameparts = strsplit2(name, '.');
     else
         nameparts = name;
     end
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/nestedfetch.m b/dependencies/PropertyGrid-2010-09-16-mod/nestedfetch.m
index 7e295be0..2a410123 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/nestedfetch.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/nestedfetch.m
@@ -21,7 +21,7 @@
 % Copyright 2010 Levente Hunyadi
 function value = nestedfetch(obj, name)
     if ~iscell(name)
-        nameparts = strsplit(name, '.');
+        nameparts = strsplit2(name, '.');
     else
         nameparts = name;
     end
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/strjoin.m b/dependencies/PropertyGrid-2010-09-16-mod/strjoin2.m
similarity index 84%
rename from dependencies/PropertyGrid-2010-09-16-mod/strjoin.m
rename to dependencies/PropertyGrid-2010-09-16-mod/strjoin2.m
index b10a7b38..f5ed5d08 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/strjoin.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/strjoin2.m
@@ -6,15 +6,15 @@
 % strings:
 %    a cell array of strings to join
 %
-% See also: strsplit, cell2mat
+% See also: strsplit2, cell2mat
 
 % Copyright 2008-2009 Levente Hunyadi
-function string = strjoin(adjoiner, strings)
+function string = strjoin2(adjoiner, strings)
 
 validateattributes(adjoiner, {'char'}, {'vector'});
 validateattributes(strings, {'cell'}, {'vector'});
 assert(iscellstr(strings), ...
-    'strjoin:ArgumentTypeMismatch', ...
+    'strjoin2:ArgumentTypeMismatch', ...
     'The elements to join should be stored in a cell vector of strings (character arrays).');
 if isempty(strings)
     string = '';
diff --git a/dependencies/PropertyGrid-2010-09-16-mod/strsplit.m b/dependencies/PropertyGrid-2010-09-16-mod/strsplit2.m
similarity index 84%
rename from dependencies/PropertyGrid-2010-09-16-mod/strsplit.m
rename to dependencies/PropertyGrid-2010-09-16-mod/strsplit2.m
index 3267de71..61ec2df7 100644
--- a/dependencies/PropertyGrid-2010-09-16-mod/strsplit.m
+++ b/dependencies/PropertyGrid-2010-09-16-mod/strsplit2.m
@@ -6,10 +6,10 @@
 % adjoiner:
 %    string separating each neighboring element
 %
-% See also: strjoin
+% See also: strjoin2
 
 % Copyright 2008-2009 Levente Hunyadi
-function strings = strsplit(string, adjoiner)
+function strings = strsplit2(string, adjoiner)
 
 if nargin < 2
     adjoiner = sprintf('\n');