reporting: @graph: new option xTickLabels

doc/dynare.texi

@@ -8240,7 +8240,7 @@ command. Default: @code{`!'}
 @end table
 @end defmethod
 
-@defmethod Report addGraph data, figname, graphSize, showGrid, showLegend, showLegendBox, legendLocation, legendOrientation, legendFontSize, seriesToUse, shade, shadeColor, shadeOpacity, title, xlabel, ylabel, xrange, yrange, showZeroline
+@defmethod Report addGraph data, figname, graphSize, showGrid, showLegend, showLegendBox, legendLocation, legendOrientation, legendFontSize, seriesToUse, shade, shadeColor, shadeOpacity, title, xlabel, ylabel, xrange, xTickLabels, yrange, showZeroline
 Adds a @code{Graph} to a @code{Section}.
 @optionshead
 @table @code
@@ -8309,6 +8309,10 @@ The y-axis label. Default: @code{none}
 @item xrange, @code{dynDates}
 The boundary on the x-axis to display in the graph. Default: all
 
+@item xTickLabels, @code{CELL_ARRAY_STRINGS}
+The labels to use for the xticks in the graph. Default: the dates of
+the @code{dynSeries}
+
 @item yrange, @code{NUMERICAL_VECTOR}
 The boundary on the y-axis to display in the graph, represented as a
 @code{NUMERICAL_VECTOR} of size @math{2}, with the first entry less

matlab/reports/@graph/createGraph.m

@@ -98,15 +98,19 @@ if ~isempty(o.shade)
     set(gca, 'children', children);
 end
 
-xticks = get(gca, 'XTick');
-xTickLabels = cell(1, length(xticks));
-for i=1:length(xticks)
-    if xticks(i) >= x(1) && ...
-            xticks(i) <= x(end)
-        xTickLabels{i} = xlabels{xticks(i)};
-    else
-        xTickLabels{i} = '';
+if isempty(o.xTickLabels)
+    xticks = get(gca, 'XTick');
+    xTickLabels = cell(1, length(xticks));
+    for i=1:length(xticks)
+        if xticks(i) >= x(1) && ...
+                xticks(i) <= x(end)
+            xTickLabels{i} = xlabels{xticks(i)};
+        else
+            xTickLabels{i} = '';
+        end
     end
+else
+    xTickLabels = o.xTickLabels;
 end
 set(gca, 'XTickLabel', xTickLabels);
 

matlab/reports/@graph/graph.m

@@ -60,6 +60,7 @@ o.legendFontSize = 8;
 o.showZeroline = false;
 
 o.graphSize = [];
+o.xTickLabels = {};
 
 if nargin == 1
     assert(isa(varargin{1}, 'graph'),['@graph.graph: with one arg you ' ...
@@ -132,7 +133,8 @@ assert(isempty(o.seriesToUse) || iscellstr(o.seriesToUse), ['@graph.graph: ' ...
 assert(isempty(o.graphSize) || ((isfloat(o.graphSize) && length(o.graphSize) == 2)),...
        ['@graph.graph: graphSize is specified as an array with two float ' ...
         'entries, [width height]']);
-
+assert(iscellstr(o.xTickLabels), ...
+       '@graph.graph: xTickLabels must be a cell array of strings');
 % using o.seriesToUse, create series objects and put them in o.seriesElements
 if ~isempty(o.data)
     if isempty(o.seriesToUse)