RE: RE: RE: Combo Chart with Trendline
Friedli Beat <[email protected]> Tue, 10 Aug 2004 08:45:47 +0200
| Newsgroups | gmane.comp.krysalis.jcharts.devel |
|---|---|
| Message-ID | <[email protected]> |
This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C47EA5.AAD66F20 Content-Type: text/plain; charset="iso-8859-1" I absolutely agree. If somone wants to draw a regression line he must know what the relation of the data points (in a scatterplot) is. The relation migth be linear, quadratic, qubic or whatever. See http://www.tufts.edu/~gdallal/straight.htm <http://www.tufts.edu/~gdallal/straight.htm> . For my purpose (and probably for 80% of the others) it would be absolutely enogh to have a linear regression. Beat >Well the non-linear regression line is a pretty complicated do-hickey. So, > making it an option sounds good on paper, but unless someone finds an > algorithm that is more than a calculus proof, I"m not going to be able to > build it. > > Your second point is good, but I don"t think anything is particularly > special about a regression line that makes it any different than any other > chart. So having n of them shouldn"t be a big deal. > err, it"ll be a big deal now, because the proof of concept I uploaded, > doesn"t allow it. But I"m sure some smart people can fix "er up. > > Nathan <http://www.tufts.edu/~gdallal/straight.htm> This message may contain confidential information and is intended only for the individual named herein. If you are not the herein named addressee you should not disseminate, distribute, copy or otherwise make use of this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake, and delete this e-mail from your system. Thank you. ------_=_NextPart_001_01C47EA5.AAD66F20 Content-Type: text/html; charset="iso-8859-1" <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD> <BODY> <DIV><FONT face=Arial><FONT size=2><SPAN class=620443406-10082004>I absolutely agree. If somone wants to draw a regression line he must know what the relation of the data points (in a scatterplot) is. The relation migth be linear, quadratic, qubic or whatever. See </SPAN><SPAN class=620443406-10082004><A href="http://www.tufts.edu/~gdallal/straight.htm">http://www.tufts.edu/~gdallal/straight.htm</A>. For my purpose (and probably for 80% of the others) it would be absolutely enogh to have a linear regression.</SPAN></FONT></FONT></DIV> <DIV><SPAN class=620443406-10082004><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=620443406-10082004>Beat</SPAN><SPAN class=620443406-10082004><FONT face=Arial size=2></FONT></SPAN></DIV> <DIV><SPAN class=620443406-10082004><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=620443406-10082004><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=620443406-10082004>></SPAN>Well the non-linear regression line is a pretty complicated do-hickey. So,<BR><SPAN class=620443406-10082004>></SPAN> making it an option sounds good on paper, but unless someone finds an<BR><SPAN class=620443406-10082004>></SPAN> algorithm that is more than a calculus proof, I"m not going to be able to<BR><SPAN class=620443406-10082004>></SPAN> build it. <BR><SPAN class=620443406-10082004><FONT face=Arial size=2>></FONT></SPAN> <BR><SPAN class=620443406-10082004>></SPAN> Your second point is good, but I don"t think anything is particularly<BR><SPAN class=620443406-10082004>></SPAN> special about a regression line that makes it any different than any other<BR><SPAN class=620443406-10082004>></SPAN> chart. So having n of them shouldn"t be a big deal. <BR><SPAN class=620443406-10082004>></SPAN> err, it"ll be a big deal now, because the proof of concept I uploaded,<BR><SPAN class=620443406-10082004>></SPAN> doesn"t allow it. But I"m sure some smart people can fix "er up.<BR><SPAN class=620443406-10082004><FONT face=Arial size=2>></FONT></SPAN> <BR><SPAN class=620443406-10082004>></SPAN> Nathan<BR></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <P><FONT face=Arial size=2><A href="http://www.tufts.edu/~gdallal/straight.htm"></A></FONT> </P> <P><FONT face=Arial size=2></FONT><BR> </P> <P> <FONT face=Arial size=2>This message may contain confidential information and is intended only for</FONT><BR> <FONT face=Arial size=2>the individual named herein. If you are not the herein named addressee you</FONT><BR> <FONT face=Arial size=2>should not disseminate, distribute, copy or otherwise make use of this</FONT><BR> <FONT face=Arial size=2>e-mail. Please notify the sender immediately by e-mail if you have received</FONT><BR> <FONT face=Arial size=2>this e-mail by mistake, and delete this e-mail from your system. Thank you.</FONT><BR> </P> </BODY></HTML> ------_=_NextPart_001_01C47EA5.AAD66F20-- ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285