Hi,<div><br><div>I&#39;d like to create a series of which an observation will refer to (or will be calculated using) the previous observation of the same series. </div><div><br></div><div>For example, I want to end up with a series like below:</div>
<div><br></div><div>0</div><div>5</div><div>10</div><div>15</div><div>20</div><div>25</div><div>30</div><div><br></div><div>Is it possible to create this series with a command similar to:</div><div><br></div><div>series s = s(-1) + 5</div>
<div><br></div><div>(Of course, this series can be generated by a formula like obs * 5 but this is not what I meant.)</div><div><br></div><div>In such a command, one observation will be calculated by a function which receives the previous observation.</div>
<div><br></div><div>The command above wouldn&#39;t compile with error &quot;The symbol &#39;s&#39; is undefined&quot; because at the time of the declaration there&#39;s no variable as s. </div><div><br></div><div>Could you recommend a solution ? </div>
<div><br></div><div>Best regards,</div><div>Bulent Erdemir</div><div><br></div></div>