diff --git a/analysis/matlab/variations/naive_a2_d0_13/learning_curve.png b/analysis/matlab/variations/naive_a2_d0_13/learning_curve.png
index 87dd473..ff29a1e 100644
Binary files a/analysis/matlab/variations/naive_a2_d0_13/learning_curve.png and b/analysis/matlab/variations/naive_a2_d0_13/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_a2_d0_13/learning_curve_rate.png b/analysis/matlab/variations/naive_a2_d0_13/learning_curve_rate.png
index 989485d..6ea1e7a 100644
Binary files a/analysis/matlab/variations/naive_a2_d0_13/learning_curve_rate.png and b/analysis/matlab/variations/naive_a2_d0_13/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_a2_d0_13/plotcurve.m b/analysis/matlab/variations/naive_a2_d0_13/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_a2_d0_13/plotcurve.m
+++ b/analysis/matlab/variations/naive_a2_d0_13/plotcurve.m
@@ -45,6 +45,7 @@ set(gca, 'XTick', xd, 'XTickLabel', {}, 'Position', [0.2 0.30 0.60 0.60], ...
     'FontName', 'Arial', 'FontSize', 13, 'LineWidth', 1.5, 'Box', 'off', 'TickDir', 'out');
 xticklabels('auto')
 set(gca, 'XTickLabelRotation', 0);   % keep x labels horizontal (no auto-rotate)
+xlim([min(xd) - 0.5, max(xd) + 0.5]); % half-day padding so points aren't on the edges
 if strcmp(metric, 'count')       % success count: y-ticks every 5 units
     yl = ylim(gca);
     set(gca, 'YTick', floor(yl(1) / 5) * 5 : 5 : ceil(yl(2) / 5) * 5);
diff --git a/analysis/matlab/variations/naive_a2_d0_5/learning_curve.png b/analysis/matlab/variations/naive_a2_d0_5/learning_curve.png
index f97c39e..60184b8 100644
Binary files a/analysis/matlab/variations/naive_a2_d0_5/learning_curve.png and b/analysis/matlab/variations/naive_a2_d0_5/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_a2_d0_5/learning_curve_rate.png b/analysis/matlab/variations/naive_a2_d0_5/learning_curve_rate.png
index 63901fc..aa80fe6 100644
Binary files a/analysis/matlab/variations/naive_a2_d0_5/learning_curve_rate.png and b/analysis/matlab/variations/naive_a2_d0_5/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_a2_d0_5/plotcurve.m b/analysis/matlab/variations/naive_a2_d0_5/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_a2_d0_5/plotcurve.m
+++ b/analysis/matlab/variations/naive_a2_d0_5/plotcurve.m
@@ -45,6 +45,7 @@ set(gca, 'XTick', xd, 'XTickLabel', {}, 'Position', [0.2 0.30 0.60 0.60], ...
     'FontName', 'Arial', 'FontSize', 13, 'LineWidth', 1.5, 'Box', 'off', 'TickDir', 'out');
 xticklabels('auto')
 set(gca, 'XTickLabelRotation', 0);   % keep x labels horizontal (no auto-rotate)
+xlim([min(xd) - 0.5, max(xd) + 0.5]); % half-day padding so points aren't on the edges
 if strcmp(metric, 'count')       % success count: y-ticks every 5 units
     yl = ylim(gca);
     set(gca, 'YTick', floor(yl(1) / 5) * 5 : 5 : ceil(yl(2) / 5) * 5);
diff --git a/analysis/matlab/variations/naive_a2_d6_10/learning_curve.png b/analysis/matlab/variations/naive_a2_d6_10/learning_curve.png
index ec4309e..b3c3a6f 100644
Binary files a/analysis/matlab/variations/naive_a2_d6_10/learning_curve.png and b/analysis/matlab/variations/naive_a2_d6_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_a2_d6_10/learning_curve_rate.png b/analysis/matlab/variations/naive_a2_d6_10/learning_curve_rate.png
index b17666c..dc5cb39 100644
Binary files a/analysis/matlab/variations/naive_a2_d6_10/learning_curve_rate.png and b/analysis/matlab/variations/naive_a2_d6_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_a2_d6_10/plotcurve.m b/analysis/matlab/variations/naive_a2_d6_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_a2_d6_10/plotcurve.m
+++ b/analysis/matlab/variations/naive_a2_d6_10/plotcurve.m
@@ -45,6 +45,7 @@ set(gca, 'XTick', xd, 'XTickLabel', {}, 'Position', [0.2 0.30 0.60 0.60], ...
     'FontName', 'Arial', 'FontSize', 13, 'LineWidth', 1.5, 'Box', 'off', 'TickDir', 'out');
 xticklabels('auto')
 set(gca, 'XTickLabelRotation', 0);   % keep x labels horizontal (no auto-rotate)
+xlim([min(xd) - 0.5, max(xd) + 0.5]); % half-day padding so points aren't on the edges
 if strcmp(metric, 'count')       % success count: y-ticks every 5 units
     yl = ylim(gca);
     set(gca, 'YTick', floor(yl(1) / 5) * 5 : 5 : ceil(yl(2) / 5) * 5);
diff --git a/analysis/matlab/variations/naive_a2_d6_13/learning_curve.png b/analysis/matlab/variations/naive_a2_d6_13/learning_curve.png
index be9cd2f..b60c00c 100644
Binary files a/analysis/matlab/variations/naive_a2_d6_13/learning_curve.png and b/analysis/matlab/variations/naive_a2_d6_13/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_a2_d6_13/learning_curve_rate.png b/analysis/matlab/variations/naive_a2_d6_13/learning_curve_rate.png
index bb60285..9e6b035 100644
Binary files a/analysis/matlab/variations/naive_a2_d6_13/learning_curve_rate.png and b/analysis/matlab/variations/naive_a2_d6_13/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_a2_d6_13/plotcurve.m b/analysis/matlab/variations/naive_a2_d6_13/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_a2_d6_13/plotcurve.m
+++ b/analysis/matlab/variations/naive_a2_d6_13/plotcurve.m
@@ -45,6 +45,7 @@ set(gca, 'XTick', xd, 'XTickLabel', {}, 'Position', [0.2 0.30 0.60 0.60], ...
     'FontName', 'Arial', 'FontSize', 13, 'LineWidth', 1.5, 'Box', 'off', 'TickDir', 'out');
 xticklabels('auto')
 set(gca, 'XTickLabelRotation', 0);   % keep x labels horizontal (no auto-rotate)
+xlim([min(xd) - 0.5, max(xd) + 0.5]); % half-day padding so points aren't on the edges
 if strcmp(metric, 'count')       % success count: y-ticks every 5 units
     yl = ylim(gca);
     set(gca, 'YTick', floor(yl(1) / 5) * 5 : 5 : ceil(yl(2) / 5) * 5);
diff --git a/analysis/matlab/variations/naive_boxa_d0_10/learning_curve.png b/analysis/matlab/variations/naive_boxa_d0_10/learning_curve.png
index f0238ca..ae1038f 100644
Binary files a/analysis/matlab/variations/naive_boxa_d0_10/learning_curve.png and b/analysis/matlab/variations/naive_boxa_d0_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d0_10/learning_curve_rate.png b/analysis/matlab/variations/naive_boxa_d0_10/learning_curve_rate.png
index 2919716..dce6c21 100644
Binary files a/analysis/matlab/variations/naive_boxa_d0_10/learning_curve_rate.png and b/analysis/matlab/variations/naive_boxa_d0_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d0_10/plotcurve.m b/analysis/matlab/variations/naive_boxa_d0_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_boxa_d0_10/plotcurve.m
+++ b/analysis/matlab/variations/naive_boxa_d0_10/plotcurve.m
@@ -45,6 +45,7 @@ set(gca, 'XTick', xd, 'XTickLabel', {}, 'Position', [0.2 0.30 0.60 0.60], ...
     'FontName', 'Arial', 'FontSize', 13, 'LineWidth', 1.5, 'Box', 'off', 'TickDir', 'out');
 xticklabels('auto')
 set(gca, 'XTickLabelRotation', 0);   % keep x labels horizontal (no auto-rotate)
+xlim([min(xd) - 0.5, max(xd) + 0.5]); % half-day padding so points aren't on the edges
 if strcmp(metric, 'count')       % success count: y-ticks every 5 units
     yl = ylim(gca);
     set(gca, 'YTick', floor(yl(1) / 5) * 5 : 5 : ceil(yl(2) / 5) * 5);
diff --git a/analysis/matlab/variations/naive_boxa_d0_13/learning_curve.png b/analysis/matlab/variations/naive_boxa_d0_13/learning_curve.png
index f29c315..ab3caa6 100644
Binary files a/analysis/matlab/variations/naive_boxa_d0_13/learning_curve.png and b/analysis/matlab/variations/naive_boxa_d0_13/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d0_13/learning_curve_rate.png b/analysis/matlab/variations/naive_boxa_d0_13/learning_curve_rate.png
index d3dc1ae..8ede890 100644
Binary files a/analysis/matlab/variations/naive_boxa_d0_13/learning_curve_rate.png and b/analysis/matlab/variations/naive_boxa_d0_13/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d0_13/plotcurve.m b/analysis/matlab/variations/naive_boxa_d0_13/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_boxa_d0_13/plotcurve.m
+++ b/analysis/matlab/variations/naive_boxa_d0_13/plotcurve.m
@@ -45,6 +45,7 @@ set(gca, 'XTick', xd, 'XTickLabel', {}, 'Position', [0.2 0.30 0.60 0.60], ...
     'FontName', 'Arial', 'FontSize', 13, 'LineWidth', 1.5, 'Box', 'off', 'TickDir', 'out');
 xticklabels('auto')
 set(gca, 'XTickLabelRotation', 0);   % keep x labels horizontal (no auto-rotate)
+xlim([min(xd) - 0.5, max(xd) + 0.5]); % half-day padding so points aren't on the edges
 if strcmp(metric, 'count')       % success count: y-ticks every 5 units
     yl = ylim(gca);
     set(gca, 'YTick', floor(yl(1) / 5) * 5 : 5 : ceil(yl(2) / 5) * 5);
diff --git a/analysis/matlab/variations/naive_boxa_d0_5/learning_curve.png b/analysis/matlab/variations/naive_boxa_d0_5/learning_curve.png
index ebf2f02..7890cc3 100644
Binary files a/analysis/matlab/variations/naive_boxa_d0_5/learning_curve.png and b/analysis/matlab/variations/naive_boxa_d0_5/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d0_5/learning_curve_rate.png b/analysis/matlab/variations/naive_boxa_d0_5/learning_curve_rate.png
index 53da458..f90d23c 100644
Binary files a/analysis/matlab/variations/naive_boxa_d0_5/learning_curve_rate.png and b/analysis/matlab/variations/naive_boxa_d0_5/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d0_5/plotcurve.m b/analysis/matlab/variations/naive_boxa_d0_5/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_boxa_d0_5/plotcurve.m
+++ b/analysis/matlab/variations/naive_boxa_d0_5/plotcurve.m
@@ -45,6 +45,7 @@ set(gca, 'XTick', xd, 'XTickLabel', {}, 'Position', [0.2 0.30 0.60 0.60], ...
     'FontName', 'Arial', 'FontSize', 13, 'LineWidth', 1.5, 'Box', 'off', 'TickDir', 'out');
 xticklabels('auto')
 set(gca, 'XTickLabelRotation', 0);   % keep x labels horizontal (no auto-rotate)
+xlim([min(xd) - 0.5, max(xd) + 0.5]); % half-day padding so points aren't on the edges
 if strcmp(metric, 'count')       % success count: y-ticks every 5 units
     yl = ylim(gca);
     set(gca, 'YTick', floor(yl(1) / 5) * 5 : 5 : ceil(yl(2) / 5) * 5);
diff --git a/analysis/matlab/variations/naive_boxa_d6_10/learning_curve.png b/analysis/matlab/variations/naive_boxa_d6_10/learning_curve.png
index 8a26b87..d9f280a 100644
Binary files a/analysis/matlab/variations/naive_boxa_d6_10/learning_curve.png and b/analysis/matlab/variations/naive_boxa_d6_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d6_10/learning_curve_rate.png b/analysis/matlab/variations/naive_boxa_d6_10/learning_curve_rate.png
index 0dc6c5a..9ff844c 100644
Binary files a/analysis/matlab/variations/naive_boxa_d6_10/learning_curve_rate.png and b/analysis/matlab/variations/naive_boxa_d6_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d6_10/plotcurve.m b/analysis/matlab/variations/naive_boxa_d6_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_boxa_d6_10/plotcurve.m
+++ b/analysis/matlab/variations/naive_boxa_d6_10/plotcurve.m
@@ -45,6 +45,7 @@ set(gca, 'XTick', xd, 'XTickLabel', {}, 'Position', [0.2 0.30 0.60 0.60], ...
     'FontName', 'Arial', 'FontSize', 13, 'LineWidth', 1.5, 'Box', 'off', 'TickDir', 'out');
 xticklabels('auto')
 set(gca, 'XTickLabelRotation', 0);   % keep x labels horizontal (no auto-rotate)
+xlim([min(xd) - 0.5, max(xd) + 0.5]); % half-day padding so points aren't on the edges
 if strcmp(metric, 'count')       % success count: y-ticks every 5 units
     yl = ylim(gca);
     set(gca, 'YTick', floor(yl(1) / 5) * 5 : 5 : ceil(yl(2) / 5) * 5);