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    <title>PFS-JIRA</title>
    <link>https://pfspipe.ipmu.jp/jira</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>8.3.4</version>
        <build-number>803005</build-number>
        <build-date>13-09-2019</build-date>
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<item>
            <title>[REDMINE1D-75] [RM-5740] Investigate estimated deltaz values with respect to error</title>
                <link>https://pfspipe.ipmu.jp/jira/browse/REDMINE1D-75</link>
                <project id="11002" key="REDMINE1D">1D Redmine </project>
                    <description>&lt;p&gt;&lt;em&gt;&lt;font color=&quot;#505f79&quot;&gt; Created on 2020-04-17 09:32:43 by Mira Sarkis. % Done: 0&lt;/font&gt;&lt;/em&gt;&lt;/p&gt;


&lt;p&gt; TODO:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Analyze the outputs of ::compute3ddl with 3 degree of freedom and ::compute with one degree of freedom&lt;/li&gt;
	&lt;li&gt;Analyze relation between deltaz and error.&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Study the need/necessity to calculate two deltaz values: one to the right and one to the left of the candidate, comparing to trimming the deltaz range in the case of overplapping.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="16779">REDMINE1D-75</key>
            <summary>[RM-5740] Investigate estimated deltaz values with respect to error</summary>
                <type id="3" iconUrl="https://pfspipe.ipmu.jp/jira/secure/viewavatar?size=xsmall&amp;avatarId=10518&amp;avatarType=issuetype">Task</type>
                                            <priority id="10000" iconUrl="https://pfspipe.ipmu.jp/jira/images/icons/priorities/medium.svg">Normal</priority>
                        <status id="1" iconUrl="https://pfspipe.ipmu.jp/jira/images/icons/statuses/open.png" description="The issue is open and ready for the assignee to start work on it.">Open</status>
                    <statusCategory id="2" key="new" colorName="blue-gray"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="r2j.migrate">Redmine-Jira Migtation</assignee>
                                    <reporter username="r2j.migrate">Redmine-Jira Migtation</reporter>
                        <labels>
                    </labels>
                <created>Fri, 4 Jun 2021 01:21:59 +0000</created>
                <updated>Thu, 7 Dec 2023 18:40:34 +0000</updated>
                                                                                <due></due>
                            <votes>0</votes>
                                    <watches>1</watches>
                                                                <comments>
                            <comment id="36358" author="r2j.migrate" created="Thu, 7 Dec 2023 18:39:38 +0000"  >&lt;p&gt;Comment by Didier Vibert on 2020-04-17 10:28:21:&lt;br/&gt;
Mira SARKIS wrote:&lt;br/&gt;
&amp;gt; TODO:&lt;br/&gt;
&amp;gt; * Analyze the outputs of ::compute3ddl with 3 degree of freedom and ::compute with one degree of freedom&lt;br/&gt;
&amp;gt; * Analyze relation between deltaz and error.&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;we could also add a 3rd deltaz computation: 2 dof (constant, and x^2), this can be implemented analytically easily, with minor change to ::compute&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;there are even other possibilities, like assymetric limits, based on confidence interval for instance. I will make a little biblio on that&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="36359" author="r2j.migrate" created="Thu, 7 Dec 2023 18:39:45 +0000"  >&lt;p&gt;Comment by Pierre-yves Chabaud on 2020-11-12 13:27:30:&lt;br/&gt;
R&#233;cup&#233;rer les r&#233;sultats de la 0.14 sur PFS7_900s et Euclid_noiseless&lt;/p&gt;</comment>
                            <comment id="36360" author="r2j.migrate" created="Thu, 7 Dec 2023 18:39:54 +0000"  >&lt;p&gt;Comment by Vincent Le Brun on 2023-01-05 17:20:54:&lt;br/&gt;
il va falloir m&apos;expliquer exactement ce qu&apos;il y a &#224; faire ...&lt;/p&gt;</comment>
                            <comment id="36361" author="r2j.migrate" created="Thu, 7 Dec 2023 18:40:03 +0000"  >&lt;p&gt;Comment by Didier Vibert on 2023-01-05 18:25:27:&lt;br/&gt;
Vincent Le Brun wrote in #note-21:&lt;br/&gt;
&amp;gt; il va falloir m&apos;expliquer exactement ce qu&apos;il y a &#224; faire ...&lt;/p&gt;

&lt;p&gt;bah regarder les dz estim&#233;s par amazed (la pr&#233;cision) et comparer &#224; l&apos;erreur effective (z-zref).&lt;/p&gt;

&lt;p&gt;Il y a deux methodes de calcul dans le code (le choix entre les deux est cod&#233; en dur, il faut modifier le code pour basculer sur l&apos;autre). &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;par d&#233;faut c&apos;est @::compute@ qui est utilis&#233;e. Qui ajuste uniquement le terme en x2 de la parabole, les autres termes &#233;tant fix&#233;s en positionnant le sommet sur le chi2(z_estim)&lt;/li&gt;
	&lt;li&gt;l&apos;autre m&#233;thode @::compute3ddl@ (pour 3 degr&#233;s de libert&#233;) ajuste les 3 coefficients de la parabole.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Donc on pourrait comparer les r&#233;sultats des 2 m&#233;thodes et d&#233;cider laquelle donne la meilleure pr&#233;diction.&lt;/p&gt;

&lt;p&gt;Ensuite il y avait l&apos;id&#233;e de calculer une pr&#233;cision &#224; gauche et une pr&#233;cision &#224; droite (eg en ajustant une 1/2 parabole &#224; gauche et 1/2 parabole &#224; droite, au tout autre proposition bienvenue !&lt;/p&gt;</comment>
                            <comment id="36362" author="r2j.migrate" created="Thu, 7 Dec 2023 18:40:17 +0000"  >&lt;p&gt;Comment by Vincent Le Brun on 2023-05-04 14:55:04:&lt;/p&gt;

&lt;p&gt;OK donc il me faudra une version de la 0.42 avec la m&#233;thode &amp;lt;pre&amp;gt;&amp;lt;code class=&quot;cpp&quot;&amp;gt;::compute3ddl&lt;br/&gt;
&amp;lt;/code&amp;gt;&amp;lt;/pre&amp;gt;, pour faire les tests, si le choix est cod&#233; en dur &lt;/p&gt;</comment>
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