optdigits

mlr_tasks_optdigits

Classification data to predict handwritten digits.
Obtained using the <a href="https://CRAN.R-project.org/package=mlr3oml">mlr3oml</a> package.
Binarized version of the original data set. The multi-class target column has been converted to
a two-class nominal target column by re-labeling the majority class as positive (<code>"P"</code>) and all
others as negative (<code>"N"</code>). Originally converted by Quan Sun.
Contains 64 features and 5620 observations.
Target column is <code>"binaryclass"</code>.

data

A small collection of interesting and educational machine
learning data sets which are used as examples in the 'mlr3' book
(<https://mlr3book.mlr-org.com>), the use case gallery
(<https://mlr3gallery.mlr-org.com>), or in other examples. All data
sets are properly preprocessed and ready to be analyzed by most
machine learning algorithms. Data sets are automatically added to the
dictionary of tasks if 'mlr3' is loaded.

Michel Lang

mlr3data

Collection of Machine Learning Data Sets for 'mlr3'

Marc Becker

optdigits function

<ul>
<li>All feature variables <code>"input1"</code>, ..., <code>"input64"</code> (number of on pixels in each block) have
been coerced to integers.</li>
<li>The target variable has been renamed from <code>"binaryClass"</code> to <code>"binaryclass"</code>.</li>
</ul>

Pre-processing

Classification data to predict handwritten digits.
Obtained using the <a href='https://CRAN.R-project.org/package=mlr3oml'>mlr3oml</a> package.
Binarized version of the original data set. The multi-class target column has been converted to
a two-class nominal target column by re-labeling the majority class as positive (<code>"P"</code>) and all
others as negative (<code>"N"</code>). Originally converted by Quan Sun.
Contains 64 features and 5620 observations.
Target column is <code>"binaryclass"</code>.

Optical Recognition of Handwritten Digits — optdigits

<ul>
<li>All feature variables <code>"input1"</code>, ..., <code>"input64"</code> (number of on pixels in each block) have
been coerced to integers.</li>
<li>The target variable has been renamed from <code>"binaryClass"</code> to <code>"binaryclass"</code>.</li>
</ul>

optdigits: Optical Recognition of Handwritten Digits

Description

Arguments

Pre-processing

Examples