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<p class="MsoPlainText">Dear R users,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">A new version (1.1.0) of the “spm” package for spatial predictive modelling is now available on CRAN.
<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">The introductory vignette is available here: <o:p></o:p></p>
<p class="MsoPlainText"><a href="https://cran.rstudio.com/web/packages/spm/vignettes/spm.html">https://cran.rstudio.com/web/packages/spm/vignettes/spm.html</a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">There are several new enhancements to the package including a fast version of random forest in using ranger (rg) library(ranger) and the ability to convert relevant error measures to accuracy measure (VEcv). A full list of changes are
shown below.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">New Features:<o:p></o:p></p>
<p class="MsoPlainText">1. Added eight functions to implement random forest using ranger (rg) in library(ranger).<o:p></o:p></p>
<p class="MsoPlainText">2. Added a new function, tovecv, to convert relevant error measures to accuracy measure (VEcv).<o:p></o:p></p>
<p class="MsoPlainText">3. Added some accuracy measures for categorical data and one further accuracy measure for numerical data in function pred.acc.<o:p></o:p></p>
<p class="MsoPlainText">4. Added the variances of predictions to relevant prediction functions.<o:p></o:p></p>
<p class="MsoPlainText">5. Revised RFcv etc. to use pred.acc.<o:p></o:p></p>
<p class="MsoPlainText">6. Removed samples with missing values in data(hard).<o:p></o:p></p>
<p class="MsoPlainText">6. Updated vignette accordingly.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Comments, suggestions and contributions are welcome and much appreciated!.
<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Kind regards,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333">Jin Li, PhD
</span></b><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#0070C0">|</span></b><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333">
</span></b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#333333">Spatial Modeller / Computational Statistician<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#333333">National Earth and Marine Observations
</span><b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#0070C0">|
</span></b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#333333">Environmental Geoscience Division </span><span style="font-size:9.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:6.0pt;margin-right:0cm;margin-bottom:6.0pt;margin-left:0cm">
<span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#0070C0">t:</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#333333"> +61 2 6249 9899 </span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#0070C0">
</span><a href="http://www.ga.gov.au/" title="http://www.ga.gov.au/"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#0070C0;text-decoration:none">www.ga.gov.au</span></a><span style="color:#212121"><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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