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<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial">Hi<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial">I’m Raffaella from
<st1:place w:st="on"><st1:country-region w:st="on">Italy</st1:country-region></st1:place>, please may I have some information about
<b><span style="font-weight:bold">histnorm</span></b> and <b><span style="font-weight:bold">normplot</span></b> functions:<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial">I need to calculate the log-normal probability distribution so I wrote this command:<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green">y=grand(1,200,'nor',5,0.37); //generate the normal data N(5,0.37)<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green">x=exp(y); //generate the log-normal data by using exp<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green">xmin=min(x),xmax=max(x) //determine min and max values<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green">xmean=mean(x) //determine mean value<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:green">xclass=[25:25:500];<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:green">histnorm(x,xclass); //histogram<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:green">normplot(x); //normal probability plot<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial">but the SCILAB answer is (I highlighted in red the problem):<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green">-->y=grand(1,200,'nor',5,0.37); //generate the normal data N(5,0.37)<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green">-->x=exp(y); //generate the log-normal data by using exp<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green">-->xmin=min(x),xmax=max(x) //determine min and max values<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green"> xmin =<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green"> 43.597751
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green"> xmax =<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green"> 490.5407
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green">-->xmean=mean(x) //determine mean value<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green"> xmean =<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green"> 152.80157
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:green">-->xclass=[25:25:500];<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial">--><b><span style="font-weight:bold">histnorm</span></b>(x,xclass); //histogram<o:p></o:p></span></font></p>
<p class="MsoNormal"><b><font size="2" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;font-weight:bold">histnorm</span></font></b><font size="2" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial">(x,xclass);
//histogram<o:p></o:p></span></font></p>
<p class="MsoNormal"><b><font size="2" color="red" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:red;font-weight:bold">
<o:p></o:p></span></font></b></p>
<p class="MsoNormal"><b><font size="2" color="red" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:red;font-weight:bold"> !--error 4
<o:p></o:p></span></font></b></p>
<p class="MsoNormal"><b><font size="2" color="red" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:red;font-weight:bold">There is an undefined variable: histnorm<o:p></o:p></span></font></b></p>
<p class="MsoNormal"><b><font size="2" color="red" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:red;font-weight:bold"><o:p> </o:p></span></font></b></p>
<p class="MsoNormal"><b><font size="2" color="red" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:red;font-weight:bold">at line 6 of exec file called by :
<o:p></o:p></span></font></b></p>
<p class="MsoNormal"><b><font size="2" color="red" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:red;font-weight:bold">exec('C:\Documents and Settings\RMARIGO\Impostazioni locali\Temp\SCI_TMP_2844_\LOAD_INTO_SCILAB-4369136397675464473.sce',
1)<o:p></o:p></span></font></b></p>
<p class="MsoNormal"><b><font size="2" color="red" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:red;font-weight:bold">while executing a callback<o:p></o:p></span></font></b></p>
<p class="MsoNormal"><b><font size="2" color="red" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:red;font-weight:bold"><o:p> </o:p></span></font></b></p>
<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial">Could you help me?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial">Thanks a lot<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:
10.0pt;font-family:Arial"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><st1:PersonName w:st="on"><font size="2" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial">Raffaella Marigo</span></font></st1:PersonName><font size="2" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">____________________________________________________</span></font><o:p></o:p></p>
<p class="MsoNormal"><font size="1" face="Arial"><span style="font-size:9.0pt;
font-family:Arial"> <o:p></o:p></span></font></p>
<p class="MsoNormal"><st1:PersonName w:st="on"><strong><b><font size="1" face="Arial"><span style="font-size:9.0pt;font-family:Arial">Raffaella Marigo</span></font></b></strong></st1:PersonName><font size="1" face="Arial"><span style="font-size:9.0pt;font-family:Arial"><o:p></o:p></span></font></p>
<p class="MsoNormal"><strong><b><i><font size="1" face="Arial"><span style="font-size:9.0pt;font-family:Arial;font-style:italic">Direzione Generale - U.O. Sviluppo Modellistica Ambientale</span></font></i></b></strong><font size="1" face="Arial"><span style="font-size:9.0pt;font-family:Arial"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="1" face="Arial"><span style="font-size:9.0pt;
font-family:Arial"> <o:p></o:p></span></font></p>
<p class="MsoNormal"><strong><b><font size="1" color="black" face="Arial"><span style="font-size:9.0pt;font-family:Arial;color:black">ARPA Lombardia</span></font></b></strong><em><b><i><font size="1" color="black" face="Arial"><span style="font-size:9.0pt;font-family:Arial;
color:black;font-weight:bold">
</span></font></i></b></em><font size="1" color="black" face="Arial"><span style="font-size:9.0pt;font-family:Arial;
color:black">-</span></font><em><i><font size="1" color="green" face="Arial"><span style="font-size:9.0pt;font-family:Arial;color:green">
</span></font></i></em><font size="1" face="Arial"><span style="font-size:9.0pt;font-family:Arial">v.le Restelli 3/1, 20124 MILANO<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="1" face="Arial"><span style="font-size:9.0pt;
font-family:Arial">Tel. +39 02 69 666 298<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="1" face="Arial"><span style="font-size:9.0pt;
font-family:Arial">Fax +39 02 69 666 259<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="1" face="Arial"><span style="font-size:9.0pt;
font-family:Arial">e_mail:
<a href="mailto:r.marigo@arpalombardia.it">r.marigo@arpalombardia.it</a></span></font><o:p></o:p></p>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><o:p> </o:p></span></font></p>
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