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| author | Benjamin Franzke <benjaminfranzke@googlemail.com> | 2012-05-12 15:04:03 +0200 |
|---|---|---|
| committer | Benjamin Franzke <benjaminfranzke@googlemail.com> | 2012-05-12 15:04:46 +0200 |
| commit | c44e670ebbb1e1690398ac2837e5e79e17a19c7b (patch) | |
| tree | a5f2f8f762422f4885d9d33126901ab084b48717 /regress_pred.m | |
| parent | a5ce7b1ab782d4948c0ec6605aaa8c9d35aa73c2 (diff) | |
| download | dmc-c44e670ebbb1e1690398ac2837e5e79e17a19c7b.tar.gz dmc-c44e670ebbb1e1690398ac2837e5e79e17a19c7b.tar.bz2 dmc-c44e670ebbb1e1690398ac2837e5e79e17a19c7b.zip | |
Use polyval where appropriate
..instead of doing the polynom multiplication by hand.
Diffstat (limited to 'regress_pred.m')
| -rw-r--r-- | regress_pred.m | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/regress_pred.m b/regress_pred.m index 0c66b1e..2992471 100644 --- a/regress_pred.m +++ b/regress_pred.m @@ -8,8 +8,8 @@ function pred = regress_pred(price, quantity) pred = zeros(days, product_count); for i = 1:product_count - [m,n] = regress(price(test_set, i), quantity(test_set, i)); - pred(:, i) = m .* price(pred_set, i) + n; + mn = regress(price(test_set, i), quantity(test_set, i)); + pred(:, i) = polyval(mn, price(pred_set, i)); end endfunction |