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(This article was first published on <strong><a href="http://itsalocke.com/logistic-regressions-r/"> R – Locke Data</a></strong>, and kindly contributed to <a rel="nofollow" href="https://www.r-bloggers.com/">R-bloggers)</a> </div>
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<p>Logistic regressions are a great tool for predicting outcomes that are categorical. They use a transformation function based on probability to perform a linear regression. This makes them easy to interpret and implement in other systems.</p>
<p>Logistic regressions can be used to perform a classification for things like determining whether someone needs to go for a biopsy. They can also be used for a more nuanced view by using the probabilities of an outcome for thinks like prioritising interventions based on likelihood to default on a loan.</p>
<p>I recently did a remote talk to Plymouth University on logistic regressions, which covers:</p>
<ul>
<li>how they work (not maths heavy!)</li>
<li>how you build them in R</li>
<li>things to think about when preparing you data</li>
<li>ways to evaluate a logistic regression</li>
</ul>
<p>You can watch the <a target="_blank" rel="nofollow" href="https://www.youtube.com/watch?v=k2Of6NKnMsI">video</a> below, get the <a target="_blank" rel="nofollow" href="http://snip.ly/ri65y">slides</a>, and view the slides’ <a target="_blank" rel="nofollow" href="https://github.com/stephlocke/Rtraining/blob/master/inst/slidedecks/stats/logisticregressions.Rmd">source code</a>.</p>
<p>This talk is a cut-down version of my <a target="_blank" rel="nofollow" href="http://itsalocke.com/community-r-workshops/">community workshop</a> on logistic regressions, which is in itself a cut-down version of a full day of training on them. <a target="_blank" rel="nofollow" href="http://itsalocke.com/contact-us-page/">Get in touch</a> if you’re interested in the talk or workshop for your user group, or if you’d like to discuss in-depth training.</p>
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<p>The post <a target="_blank" rel="nofollow" href="http://itsalocke.com/logistic-regressions-r/">Logistic regressions (in R)</a> appeared first on <a target="_blank" rel="nofollow" href="http://itsalocke.com/">Locke Data</a>. Locke Data are a data science consultancy aimed at helping organisations get ready and get started with data science.</p>
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