--- a
+++ b/Ensemble Learning/AdaBoost/predStump.m
@@ -0,0 +1,10 @@
+% Make prediction based on a decision stump
+
+function label = predStump(X, stump)
+N = size(X, 1);
+x = X(:, stump.dim);
+idx = logical(x >= stump.threshold); % N x 1
+label = zeros(N, 1);
+label(idx) = stump.more;
+label(~idx) = stump.less;
+end