src="demoTable_01.png" alt=""> <h2 id="2">Plotting functions</h2><pre class="codeinput"><span class="comment">% box plot of the quantitative variables</span>
figure;
boxplot(tab(:,1:4));

<span class="comment">% histogram of petal length. Columns can be indexed by their name.</span>
figure;
hist(tab(<span class="string">'PetalLength'</span>));

<span class="comment">% plot petal width against petal length</span>
figure;
plot(tab(<span class="string">'PetalLength'</span>), tab(<span class="string">'PetalWidt