ou to
select a regression model using the stepwise procedure when data is very
big, potentially larger than available RAM in your computer. What is
more, the package gives you a lot of control over how this procedure
should look like. At this moment, you can use one of these functions:
<code>stepwise</code>, <code>forward</code>, <code>backward</code>,
<code>fast_forward</code>, <code>multi_backward</code> and combinations
of them. They can be treated as blocks from which the whole procedure of
finding the 