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(This article was first published on <strong><a href="http://r-exercises.com/2016/11/09/regular-sequences-2/"> R-exercises</a></strong>, and kindly contributed to <a rel="nofollow" href="https://www.r-bloggers.com/">R-bloggers)</a> </div>
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<p>[For this exercise, first write down your answer, without using R. Then, check your answer using R.]</p>
<p>Answers to the exercises are available <a target="_blank" rel="nofollow" href="http://r-exercises.com/2016/11/09/regular-sequences-solutions-2/">here</a>.</p>
<p><strong>Exercise 1</strong></p>
<p>if <code>x &lt;- c(a = 1, b = 2,c=3,d=4)</code><br>
What is the output for the code:<br>
<code>seq(5,11,along.with =x)</code></p>
<p><strong>Exercise 2</strong></p>
<p>If <code>x= seq(4,12,4)</code> ,<br>
what is the output for the code:<br>
<code>rep(x,each=2)</code></p>
<p><strong>Exercise 3</strong></p>
<p>What is the output for the code:<br>
<code>seq(5,11,by=2,length.out=3)</code></p>
<p><strong>Exercise 4</strong></p>
<p>What is the output for the code:<br>
<code>rep(letters[1:10],3)</code></p>
<p><strong>Exercise 5</strong></p>
<p>Create a sequence with values:<br>
<code>100 95 90 85 80 75 70 65 60 55 50<br>
</code></p>
<p><strong>Exercise 6</strong></p>
<p>What is the output for the code:<br>
<code>seq(10,0,by=5)</code></p>
<p><strong>Exercise 7</strong></p>
<p>What is the output for the code:<br>
<code>seq(2,10,by=4)==c(2,6,10)</code></p>
<p><strong>Exercise 8</strong></p>
<p>What is the output for the code:<br>
<code> rep(c('seq','rep'),each=4)</code></p>
<p><strong>Exercise 9</strong></p>
<p>Consider two variables, A and B,<br>
<code>A= as.Date(&quot;2016-11-01&quot;)</code></p>
<p><code>B = as.Date(&quot;2016-11-15&quot;)</code></p>
<p>What is the output for the code:<br>
<code>seq.Date(A,B, by = &quot;1 day&quot;)</code></p>
<p><strong>Exercise 10</strong><br>
Consider two variables, C and D,</p>
<p><code>C= as.Date(&quot;2016-02-01&quot;)</code></p>
<p><code>D = as.Date(&quot;2016-06-15&quot;)</code></p>
<p>What is the output for the code:<br>
<code>seq.Date(D,C, by = &quot;-1 month&quot;)</code></p>
<p> </p>
<p><strong>Want to practice regular sequences a bit more? We have more exercise sets on this topic <a target="_blank" rel="nofollow" href="http://r-exercises.com/tag/regular-sequences">here</a>.</strong></p>
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