From: sunlite on 5 Aug 2010 11:28 thanks David so much! Would you be so kind to explain in detail? i.e. how to Program the solution to equation ? then how to use the plotting tool using VB or VBA, instead of manually. thanks again "David Kerber" wrote: > In article <3CDB610D71E44593A808928EA4B5AE89(a)microsoft.com>, > sunlite(a)discussions.microsoft.com says... > > > > how to create a 4 parameter logistic equation curve ( 4 P L Curve ) with VB , > > VBA or Excel? instead of using MatLab or other Math addin ? > > > > thanks in advance > > Program the solution to equation, then use your favorite plotting tool > to plot it. > > D > > . >
From: MikeD on 5 Aug 2010 13:11 Are you going to pay him for doing your work for you? <g>  Mike "sunlite" <sunlite(a)discussions.microsoft.com> wrote in message news:33053BB09B0F4454A74AEAE8554FF248(a)microsoft.com... > thanks David so much! > > Would you be so kind to explain in detail? > i.e. how to Program the solution to equation ? > > then how to use the plotting tool using VB or VBA, instead of manually. > > thanks again > > > > > > "David Kerber" wrote: > >> In article <3CDB610D71E44593A808928EA4B5AE89(a)microsoft.com>, >> sunlite(a)discussions.microsoft.com says... >> > >> > how to create a 4 parameter logistic equation curve ( 4 P L Curve ) >> > with VB , >> > VBA or Excel? instead of using MatLab or other Math addin ? >> > >> > thanks in advance >> >> Program the solution to equation, then use your favorite plotting tool >> to plot it. >> >> D >> >> . >>
From: David Kerber on 5 Aug 2010 13:53 In article <33053BB09B0F4454A74AEAE8554FF248(a)microsoft.com>, sunlite(a)discussions.microsoft.com says... > > thanks David so much! > > Would you be so kind to explain in detail? > i.e. how to Program the solution to equation ? Find the equation in some mathematical handbook. For example, if you were doing a quadratic, you might find: s = ax^2 + bx + c You write a vb program that will have something like: dim a as double, b as double, c as double, s as double, x as double dim plotdata(20) for x = 0 to 19 s = a*x^2 + b*x + c plotdata(x) = s next x As for plotting, you'll either need to write your own, or find a 3rd party package. I use GigaSoft ProEssentials. It may be more than you need, but there are tons of others out there. > > then how to use the plotting tool using VB or VBA, instead of manually. > > thanks again > > > > > > "David Kerber" wrote: > > > In article <3CDB610D71E44593A808928EA4B5AE89(a)microsoft.com>, > > sunlite(a)discussions.microsoft.com says... > > > > > > how to create a 4 parameter logistic equation curve ( 4 P L Curve ) with VB , > > > VBA or Excel? instead of using MatLab or other Math addin ? > > > > > > thanks in advance > > > > Program the solution to equation, then use your favorite plotting tool > > to plot it. > > > > D > > > > . > >

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