Give an example of what you want to achieve.

Some parameters and the result you expect to get. I see that maxima has least squares curve fitting , would that be a good method to fit the sigmoidal curve ? I wrote an interface to Maxima and you could use that to fit the curve you need.

Oh btw, I just found found a java applet that does what you want here. Here is the .jar for it(here's a mirror for the jar just in case). Also here's a Java decompiler that worked for me. The next step is pretty obvious, just take all the Java source code and conver it to Perl. Not very hard, but it will take some time.

Does this solve your problem ?

In reply to Re: sigmoidal curve fitting, calculating IC/EC50, and plotting the fitted curve by spx2
in thread sigmoidal curve fitting, calculating IC/EC50, and plotting the fitted curve by perlfun

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.