<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear BaSTA,<div><br><div><span class="Apple-tab-span" style="white-space:pre"> </span>In the data frame we are allowed to specify birth and death dates. Are these taken as certain values, or as priors? For example, if I have an approximate idea of birth, but only approximate, should I include it?<br><div><div><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="font-size: 12px; "><span class="Apple-tab-span" style="white-space: pre; "> </span></div><div style="font-size: 12px; "><span class="Apple-tab-span" style="white-space: pre; "> </span>All the best!</div><div style="font-size: 12px; "><br></div><div style="font-size: 12px; "> <span class="Apple-converted-space"> </span><span class="Apple-tab-span" style="white-space: pre; "> </span>Cliff Cunningham</div><div style="font-size: 12px; "><br></div><div style="font-size: 12px; "><br class="Apple-interchange-newline"> Professor</div><div style="font-size: 12px; "><span class="Apple-tab-span" style="white-space: pre; "> </span>Biology Department</div><div style="font-size: 12px; "> <span class="Apple-tab-span" style="white-space: pre; "> </span>Duke University</div><div style="font-size: 12px; "> 130 Science Drive</div><div style="font-size: 12px; "><span class="Apple-tab-span" style="white-space: pre; "> </span>Durham NC 27708<br class="webkit-block-placeholder"></div><div style="font-size: 12px; "><span class="Apple-tab-span" style="white-space: pre; "> </span>Phone 919-660-7356<br></div><div style="font-size: 12px; "><br></div><div style="font-size: 12px; "><a href="http://www.biology.duke.edu/cunningham">http://www.biology.duke.edu/cunningham</a></div><div style="font-size: 12px; "><br class="khtml-block-placeholder"></div></span><br class="Apple-interchange-newline"></span><br class="Apple-interchange-newline">
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