diff --git a/analysis/matlab/variations/naive_boxa_d6_13/learning_curve.png b/analysis/matlab/variations/naive_boxa_d6_13/learning_curve.png
index f72c3c9..2c5f7d7 100644
Binary files a/analysis/matlab/variations/naive_boxa_d6_13/learning_curve.png and b/analysis/matlab/variations/naive_boxa_d6_13/learning_curve.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d6_13/learning_curve_rate.png b/analysis/matlab/variations/naive_boxa_d6_13/learning_curve_rate.png
index 3994d89..0f6e209 100644
Binary files a/analysis/matlab/variations/naive_boxa_d6_13/learning_curve_rate.png and b/analysis/matlab/variations/naive_boxa_d6_13/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/naive_boxa_d6_13/plotcurve.m b/analysis/matlab/variations/naive_boxa_d6_13/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/naive_boxa_d6_13/plotcurve.m
+++ b/analysis/matlab/variations/naive_boxa_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/prev_f_full/learning_curve.png b/analysis/matlab/variations/prev_f_full/learning_curve.png
index d611371..fdd6112 100644
Binary files a/analysis/matlab/variations/prev_f_full/learning_curve.png and b/analysis/matlab/variations/prev_f_full/learning_curve.png differ
diff --git a/analysis/matlab/variations/prev_f_full/learning_curve_rate.png b/analysis/matlab/variations/prev_f_full/learning_curve_rate.png
index 25c5978..d8167c8 100644
Binary files a/analysis/matlab/variations/prev_f_full/learning_curve_rate.png and b/analysis/matlab/variations/prev_f_full/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/prev_f_full/plotcurve.m b/analysis/matlab/variations/prev_f_full/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/prev_f_full/plotcurve.m
+++ b/analysis/matlab/variations/prev_f_full/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/right_only_d0_10/learning_curve.png b/analysis/matlab/variations/right_only_d0_10/learning_curve.png
index 1ed02e0..8762997 100644
Binary files a/analysis/matlab/variations/right_only_d0_10/learning_curve.png and b/analysis/matlab/variations/right_only_d0_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/right_only_d0_10/learning_curve_rate.png b/analysis/matlab/variations/right_only_d0_10/learning_curve_rate.png
index 7165453..b9f7cf5 100644
Binary files a/analysis/matlab/variations/right_only_d0_10/learning_curve_rate.png and b/analysis/matlab/variations/right_only_d0_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/right_only_d0_10/plotcurve.m b/analysis/matlab/variations/right_only_d0_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/right_only_d0_10/plotcurve.m
+++ b/analysis/matlab/variations/right_only_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/right_only_d0_13/learning_curve.png b/analysis/matlab/variations/right_only_d0_13/learning_curve.png
index 4ed1c69..0eec6b6 100644
Binary files a/analysis/matlab/variations/right_only_d0_13/learning_curve.png and b/analysis/matlab/variations/right_only_d0_13/learning_curve.png differ
diff --git a/analysis/matlab/variations/right_only_d0_13/learning_curve_rate.png b/analysis/matlab/variations/right_only_d0_13/learning_curve_rate.png
index 38cd625..8e2f5ea 100644
Binary files a/analysis/matlab/variations/right_only_d0_13/learning_curve_rate.png and b/analysis/matlab/variations/right_only_d0_13/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/right_only_d0_13/plotcurve.m b/analysis/matlab/variations/right_only_d0_13/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/right_only_d0_13/plotcurve.m
+++ b/analysis/matlab/variations/right_only_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/right_only_d0_5/learning_curve.png b/analysis/matlab/variations/right_only_d0_5/learning_curve.png
index 4086f93..9881020 100644
Binary files a/analysis/matlab/variations/right_only_d0_5/learning_curve.png and b/analysis/matlab/variations/right_only_d0_5/learning_curve.png differ
diff --git a/analysis/matlab/variations/right_only_d0_5/learning_curve_rate.png b/analysis/matlab/variations/right_only_d0_5/learning_curve_rate.png
index ee209c4..628a559 100644
Binary files a/analysis/matlab/variations/right_only_d0_5/learning_curve_rate.png and b/analysis/matlab/variations/right_only_d0_5/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/right_only_d0_5/plotcurve.m b/analysis/matlab/variations/right_only_d0_5/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/right_only_d0_5/plotcurve.m
+++ b/analysis/matlab/variations/right_only_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/right_only_d6_10/learning_curve.png b/analysis/matlab/variations/right_only_d6_10/learning_curve.png
index 183fa13..b6b27ba 100644
Binary files a/analysis/matlab/variations/right_only_d6_10/learning_curve.png and b/analysis/matlab/variations/right_only_d6_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/right_only_d6_10/learning_curve_rate.png b/analysis/matlab/variations/right_only_d6_10/learning_curve_rate.png
index 91cf26a..351db8a 100644
Binary files a/analysis/matlab/variations/right_only_d6_10/learning_curve_rate.png and b/analysis/matlab/variations/right_only_d6_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/right_only_d6_10/plotcurve.m b/analysis/matlab/variations/right_only_d6_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/right_only_d6_10/plotcurve.m
+++ b/analysis/matlab/variations/right_only_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/right_only_d6_13/learning_curve.png b/analysis/matlab/variations/right_only_d6_13/learning_curve.png
index 5a118f1..1bc8f74 100644
Binary files a/analysis/matlab/variations/right_only_d6_13/learning_curve.png and b/analysis/matlab/variations/right_only_d6_13/learning_curve.png differ
diff --git a/analysis/matlab/variations/right_only_d6_13/learning_curve_rate.png b/analysis/matlab/variations/right_only_d6_13/learning_curve_rate.png
index 728e3c2..dac4d7c 100644
Binary files a/analysis/matlab/variations/right_only_d6_13/learning_curve_rate.png and b/analysis/matlab/variations/right_only_d6_13/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/right_only_d6_13/plotcurve.m b/analysis/matlab/variations/right_only_d6_13/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/right_only_d6_13/plotcurve.m
+++ b/analysis/matlab/variations/right_only_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/unmerge_d0_10/learning_curve.png b/analysis/matlab/variations/unmerge_d0_10/learning_curve.png
index 2914c6d..b5c3786 100644
Binary files a/analysis/matlab/variations/unmerge_d0_10/learning_curve.png and b/analysis/matlab/variations/unmerge_d0_10/learning_curve.png differ
diff --git a/analysis/matlab/variations/unmerge_d0_10/learning_curve_rate.png b/analysis/matlab/variations/unmerge_d0_10/learning_curve_rate.png
index 09039d2..3681dce 100644
Binary files a/analysis/matlab/variations/unmerge_d0_10/learning_curve_rate.png and b/analysis/matlab/variations/unmerge_d0_10/learning_curve_rate.png differ
diff --git a/analysis/matlab/variations/unmerge_d0_10/plotcurve.m b/analysis/matlab/variations/unmerge_d0_10/plotcurve.m
index f57d569..1f090e6 100644
--- a/analysis/matlab/variations/unmerge_d0_10/plotcurve.m
+++ b/analysis/matlab/variations/unmerge_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);