<div dir="ltr">Sorry if I misunderstood your question.</div><div class="gmail_extra"><br><div class="gmail_quote">On 29 August 2017 at 06:32, Raga Markely <span dir="ltr"><<a href="mailto:raga.markely@gmail.com" target="_blank">raga.markely@gmail.com</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">Sounds good.. tried it and works.. thank you!</div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 28, 2017 at 3:20 PM, Andreas Mueller <span dir="ltr"><<a href="mailto:t3kcit@gmail.com" target="_blank">t3kcit@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
you can also use grid.best_estimator_ (and then all the rest)<br>
<br>
<div class="m_1944891694356816556m_4057052719489639588moz-cite-prefix">On 08/28/2017 03:07 PM, Raga Markely
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Ah.. got it :D..
<div><br>
</div>
<div>The pipeline was run in gridsearchcv.. </div>
<div><br>
</div>
<div>It works now after calling fit..</div>
<div><br>
</div>
<div>Thanks!</div>
<div>Raga</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Aug 28, 2017 at 2:55 PM,
Andreas Mueller <span dir="ltr"><<a href="mailto:t3kcit@gmail.com" target="_blank">t3kcit@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF"> Have you called "fit"
on the pipeline?
<div>
<div class="m_1944891694356816556m_4057052719489639588h5"><br>
<br>
<div class="m_1944891694356816556m_4057052719489639588m_-9036533308352462377moz-cite-prefix">On
08/28/2017 02:12 PM, Raga Markely wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Thank you, Andreas.
<div><br>
</div>
<div>When I try</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">pipe_lr.named_steps['clf'].coe<wbr>f_</blockquote>
<div><br>
</div>
<div>I get:</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">AttributeError:
'LogisticRegression' object has no attribute
'coef_'</blockquote>
<div><br>
</div>
<div>And when I try:</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">pipe_lr.named_steps['clf']</blockquote>
<div><br>
</div>
<div>I get:</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">LogisticRegression(C=0.1,
class_weight=None, dual=False,
fit_intercept=True, intercept_scaling=1,
max_iter=100, multi_class='ovr', n_jobs=1,
penalty='l2', random_state=None,
solver='liblinear', tol=0.0001, verbose=0,
warm_start=False)</blockquote>
<div><br>
</div>
<div>I wonder what I am missing?</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Raga</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Aug 28, 2017 at
12:01 PM, Andreas Mueller <span dir="ltr"><<a href="mailto:t3kcit@gmail.com" target="_blank">t3kcit@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF"> Can can
get the coefficients on the scaled data with<br>
pipeline_lr.named_steps_['clf'<wbr>].coef_<br>
though<br>
<br>
<br>
<div class="m_1944891694356816556m_4057052719489639588m_-9036533308352462377m_-8097638935145558044moz-cite-prefix">On
08/28/2017 12:08 AM, Raga Markely wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">No problem, thank you!
<div><br>
</div>
<div>Best,</div>
<div>Raga</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Aug 28,
2017 at 12:01 AM, Joel Nothman <span dir="ltr"><<a href="mailto:joel.nothman@gmail.com" target="_blank">joel.nothman@gmail.com</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">
<div>No, we do not have a way to
get the coefficients with
respect to the input
(pre-scaling) space.</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">
<div>
<div class="m_1944891694356816556m_4057052719489639588m_-9036533308352462377m_-8097638935145558044h5">On
28 August 2017 at 13:20,
Raga Markely <span dir="ltr"><<a href="mailto:raga.markely@gmail.com" target="_blank">raga.markely@gmail.com</a>></span>
wrote:<br>
</div>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<div class="m_1944891694356816556m_4057052719489639588m_-9036533308352462377m_-8097638935145558044h5">
<div dir="ltr">Hello,
<div><br>
</div>
<div>I am wondering if
it's possible to get
the weight
coefficients of
logistic regression
from a pipeline?</div>
<div><br>
</div>
<div>For instance, I
have the followings:</div>
<div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">clf_lr
=
LogisticRegression(penalty='l1<wbr>',
C=0.1)<br>
pipe_lr =
Pipeline([['sc',
StandardScaler()],
['clf', clf_lr]])<br>
pipe_lr.fit(X, y)</blockquote>
</div>
<div><br>
</div>
<div>Does pipe_lr have
an attribute that I
can call to get the
weight coefficient?</div>
<div><br>
</div>
<div>Or do I have to get
it from the classifier
as follows?</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">X_std
=
StandardScaler().fit_transform<wbr>(X)<br>
clf_lr =
LogisticRegression(penalty='l1<wbr>',
C=0.1)<br>
clf_lr.fit(X_std, y)<br>
clf_lr.coef_</blockquote>
<div><br>
</div>
<div>Thank you,</div>
<div>Raga</div>
<div><br>
</div>
</div>
<br>
</div>
</div>
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