<div dir="ltr">Sorry, docstring is also a bit funny.<div><br></div><div>Is the problem it is trying to solve have an __equality__ constraint for y_min, y_max or __inequality__ constraint for y_min / y_max? </div><div><br></div><div>Either way the produced solution does not satisfy such a constraint...</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jun 21, 2016 at 7:19 PM, Jonathan Taylor <span dir="ltr"><<a href="mailto:jonathan.taylor@stanford.edu" target="_blank">jonathan.taylor@stanford.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Should have included:<div><br></div><div>
<p><span>In [<b>22</b>]: </span><span>iso</span></p>
<p><span>Out[<b>22</b>]: </span><span><module 'sklearn.isotonic' from '/Users/jonathantaylor/anaconda/envs/py27/lib/python2.7/site-packages/sklearn/isotonic.pyc'></span></p></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jun 21, 2016 at 7:18 PM, Jonathan Taylor <span dir="ltr"><<a href="mailto:jonathan.taylor@stanford.edu" target="_blank">jonathan.taylor@stanford.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Was trying to fit isotonic regression with non-trivial y_min and y_max:<div><br></div><div>
<p><span>In [<b>17</b>]: </span><span>X</span></p>
<p><span>Out[<b>17</b>]: </span></p>
<p><span>array([ 1.26336413, 1.31853693, -0.57200917, 0.3072928 , -0.70686507,</span></p>
<p><span> -0.17614937, -1.59943059, 1.05908504, 1.3958263 , 1.90580318,</span></p>
<p><span> 0.20992272, 0.02836316, -0.08092235, 0.44438247, 0.01791253,</span></p>
<p><span> -0.3771914 , -0.89577538, -0.37726249, -1.32687569, 0.18013201])</span></p>
<p><span></span><br></p>
<p><span>In [<b>18</b>]: </span><span>iso.isotonic_regression(X, y_min=0, y_max=0.1)</span></p>
<p><span>Out[<b>18</b>]: </span></p>
<p><span>array([-0.00826919, -0.00826919, -0.00826919, -0.00826919, -0.00826919,</span></p>
<p><span> -0.00826919, -0.00826919, 0.10449344, 0.10449344, 0.10449344,</span></p>
<p><span> 0.10449344, 0.10449344, 0.10449344, 0.10449344, 0.10449344,</span></p>
<p><span> 0.10449344, 0.10449344, 0.10449344, 0.10449344, 0.10449344])</span></p><p><span><br></span></p><p><span>The solution does not satisfy the bounds that each entry should be in [0,0.1]</span></p><span><font color="#888888"><p><span><br></span></p><div><br></div>-- <br><div data-smartmail="gmail_signature">Jonathan Taylor <br>Dept. of Statistics <br>Sequoia Hall, 137 <br>390 Serra Mall<br>Stanford, CA 94305<br>Tel: <a href="tel:650.723.9230" value="+16507239230" target="_blank">650.723.9230</a><br>Fax: <a href="tel:650.725.8977" value="+16507258977" target="_blank">650.725.8977</a><br>Web: <a href="http://www-stat.stanford.edu/~jtaylo" target="_blank">http://www-stat.stanford.edu/~jtaylo</a></div>
</font></span></div></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div data-smartmail="gmail_signature">Jonathan Taylor <br>Dept. of Statistics <br>Sequoia Hall, 137 <br>390 Serra Mall<br>Stanford, CA 94305<br>Tel: <a href="tel:650.723.9230" value="+16507239230" target="_blank">650.723.9230</a><br>Fax: <a href="tel:650.725.8977" value="+16507258977" target="_blank">650.725.8977</a><br>Web: <a href="http://www-stat.stanford.edu/~jtaylo" target="_blank">http://www-stat.stanford.edu/~jtaylo</a></div>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">Jonathan Taylor <br>Dept. of Statistics <br>Sequoia Hall, 137 <br>390 Serra Mall<br>Stanford, CA 94305<br>Tel: 650.723.9230<br>Fax: 650.725.8977<br>Web: <a href="http://www-stat.stanford.edu/~jtaylo" target="_blank">http://www-stat.stanford.edu/~jtaylo</a></div>
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