<div dir="ltr">What's unsatisfactory about the zoo function? Speed or smth else?</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Oct 9, 2013 at 12:54 PM, statquant3 <span dir="ltr"><<a href="mailto:statquant@outlook.com" target="_blank">statquant@outlook.com</a>></span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Yes you can do it with a window join but that's clearly overshoot...<br>
Just a very simple function would do<br>
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