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-rw-r--r--regress_pred.m1
1 files changed, 1 insertions, 0 deletions
diff --git a/regress_pred.m b/regress_pred.m
index 8788bee..0bb5ca9 100644
--- a/regress_pred.m
+++ b/regress_pred.m
@@ -11,5 +11,6 @@ function pred = regress_pred(price, quantity, degree, prefunc)
mn = regress(prefunc(price(test_set, i)), quantity(test_set, i), degree);
pred(:, i) = polyval(mn, prefunc(price(pred_set, i)));
end
+ pred = max(pred, 0);
endfunction