diff --git a/analysis/matlab/variations/boxa_a2_d0_10/learning_curve.png b/analysis/matlab/variations/boxa_a2_d0_10/learning_curve.png
index c2f23e0..ba5488b 100644
Binary files a/analysis/matlab/variations/boxa_a2_d0_10/learning_curve.png and b/analysis/matlab/variations/boxa_a2_d0_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/boxa_a2_d0_10/learning_curve_rate.png b/analysis/matlab/variations/boxa_a2_d0_10/learning_curve_rate.png
index caf1efa..47cf87a 100644
Binary files a/analysis/matlab/variations/boxa_a2_d0_10/learning_curve_rate.png and b/analysis/matlab/variations/boxa_a2_d0_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/boxa_a2_d0_10/plotcurve.m b/analysis/matlab/variations/boxa_a2_d0_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/boxa_a2_d0_10/plotcurve.m
+++ b/analysis/matlab/variations/boxa_a2_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/boxa_a2_d0_5/learning_curve.png b/analysis/matlab/variations/boxa_a2_d0_5/learning_curve.png
index fb4fbe5..56fc76a 100644
Binary files a/analysis/matlab/variations/boxa_a2_d0_5/learning_curve.png and b/analysis/matlab/variations/boxa_a2_d0_5/learning_curve.png differ
diff --git a/analysis/matlab/variations/boxa_a2_d0_5/learning_curve_rate.png b/analysis/matlab/variations/boxa_a2_d0_5/learning_curve_rate.png
index f974d16..73f1ed3 100644
Binary files a/analysis/matlab/variations/boxa_a2_d0_5/learning_curve_rate.png and b/analysis/matlab/variations/boxa_a2_d0_5/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/boxa_a2_d0_5/plotcurve.m b/analysis/matlab/variations/boxa_a2_d0_5/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/boxa_a2_d0_5/plotcurve.m
+++ b/analysis/matlab/variations/boxa_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/boxa_a2_d6_10/learning_curve.png b/analysis/matlab/variations/boxa_a2_d6_10/learning_curve.png
index 7bb7391..c034430 100644
Binary files a/analysis/matlab/variations/boxa_a2_d6_10/learning_curve.png and b/analysis/matlab/variations/boxa_a2_d6_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/boxa_a2_d6_10/learning_curve_rate.png b/analysis/matlab/variations/boxa_a2_d6_10/learning_curve_rate.png
index 370f6ec..494eb2a 100644
Binary files a/analysis/matlab/variations/boxa_a2_d6_10/learning_curve_rate.png and b/analysis/matlab/variations/boxa_a2_d6_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/boxa_a2_d6_10/plotcurve.m b/analysis/matlab/variations/boxa_a2_d6_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/boxa_a2_d6_10/plotcurve.m
+++ b/analysis/matlab/variations/boxa_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/boxa_b2_d0_10/learning_curve.png b/analysis/matlab/variations/boxa_b2_d0_10/learning_curve.png
index aee4d3b..213297c 100644
Binary files a/analysis/matlab/variations/boxa_b2_d0_10/learning_curve.png and b/analysis/matlab/variations/boxa_b2_d0_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/boxa_b2_d0_10/learning_curve_rate.png b/analysis/matlab/variations/boxa_b2_d0_10/learning_curve_rate.png
index 416ab73..9d9328c 100644
Binary files a/analysis/matlab/variations/boxa_b2_d0_10/learning_curve_rate.png and b/analysis/matlab/variations/boxa_b2_d0_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/boxa_b2_d0_10/plotcurve.m b/analysis/matlab/variations/boxa_b2_d0_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/boxa_b2_d0_10/plotcurve.m
+++ b/analysis/matlab/variations/boxa_b2_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/boxa_b2_d0_5/learning_curve.png b/analysis/matlab/variations/boxa_b2_d0_5/learning_curve.png
index c99d2c8..dcb390a 100644
Binary files a/analysis/matlab/variations/boxa_b2_d0_5/learning_curve.png and b/analysis/matlab/variations/boxa_b2_d0_5/learning_curve.png differ
diff --git a/analysis/matlab/variations/boxa_b2_d0_5/learning_curve_rate.png b/analysis/matlab/variations/boxa_b2_d0_5/learning_curve_rate.png
index d49f841..470623e 100644
Binary files a/analysis/matlab/variations/boxa_b2_d0_5/learning_curve_rate.png and b/analysis/matlab/variations/boxa_b2_d0_5/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/boxa_b2_d0_5/plotcurve.m b/analysis/matlab/variations/boxa_b2_d0_5/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/boxa_b2_d0_5/plotcurve.m
+++ b/analysis/matlab/variations/boxa_b2_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/boxa_b2_d6_10/learning_curve.png b/analysis/matlab/variations/boxa_b2_d6_10/learning_curve.png
index ea76deb..f854be5 100644
Binary files a/analysis/matlab/variations/boxa_b2_d6_10/learning_curve.png and b/analysis/matlab/variations/boxa_b2_d6_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/boxa_b2_d6_10/learning_curve_rate.png b/analysis/matlab/variations/boxa_b2_d6_10/learning_curve_rate.png
index 24c7d15..0ceb890 100644
Binary files a/analysis/matlab/variations/boxa_b2_d6_10/learning_curve_rate.png and b/analysis/matlab/variations/boxa_b2_d6_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/boxa_b2_d6_10/plotcurve.m b/analysis/matlab/variations/boxa_b2_d6_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/boxa_b2_d6_10/plotcurve.m
+++ b/analysis/matlab/variations/boxa_b2_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/matched_current_d0_3/learning_curve.png b/analysis/matlab/variations/matched_current_d0_3/learning_curve.png
index c8ec699..b243be0 100644
Binary files a/analysis/matlab/variations/matched_current_d0_3/learning_curve.png and b/analysis/matlab/variations/matched_current_d0_3/learning_curve.png differ
diff --git a/analysis/matlab/variations/matched_current_d0_3/learning_curve_rate.png b/analysis/matlab/variations/matched_current_d0_3/learning_curve_rate.png
index 4672199..487d7b4 100644
Binary files a/analysis/matlab/variations/matched_current_d0_3/learning_curve_rate.png and b/analysis/matlab/variations/matched_current_d0_3/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/matched_current_d0_3/plotcurve.m b/analysis/matlab/variations/matched_current_d0_3/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/matched_current_d0_3/plotcurve.m
+++ b/analysis/matlab/variations/matched_current_d0_3/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_10/learning_curve.png b/analysis/matlab/variations/naive_a2_d0_10/learning_curve.png
index edd7a9d..81a9d42 100644
Binary files a/analysis/matlab/variations/naive_a2_d0_10/learning_curve.png and b/analysis/matlab/variations/naive_a2_d0_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_a2_d0_10/learning_curve_rate.png b/analysis/matlab/variations/naive_a2_d0_10/learning_curve_rate.png
index bfff2e6..0febc16 100644
Binary files a/analysis/matlab/variations/naive_a2_d0_10/learning_curve_rate.png and b/analysis/matlab/variations/naive_a2_d0_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_a2_d0_10/plotcurve.m b/analysis/matlab/variations/naive_a2_d0_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_a2_d0_10/plotcurve.m
+++ b/analysis/matlab/variations/naive_a2_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);