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T O P I C    R E V I E W
will2008 Posted - 08/23/2018 : 11:19:50 AM
Origin Ver. and Service Release (Origin 2018):
Operating System: window 10

Morning,

Please is it possible to import a code of inital parameter (Non linear regresssion) from an excel adding (macro) to origin

Thanks
3   L A T E S T    R E P L I E S    (Newest First)
Castiel Posted - 08/24/2018 : 01:26:16 AM
quote:
Originally posted by will2008

I would like to use release kinetic models to fit my data. For that purpose, I built the several functions as user-defined in nonlinear curve fitting. But I have to provide a Code to be executed to initialize parameters.

Due to my weakness in programming a friend of mine send me the initialization codes that he used in excel. I would like to if it is possible to copy that code in origin. The codes are written in Visual Basis.

Secondly please can origin has inbuilt functions for kinetic (dissolution) release such as:

Zero-order model: y=k*t
First order model: y=1-exp(-k*t)
Higuchi model: y=k*t^0.5
Hixson-Crowell model: y=1-(1-k*t)^3
Korsmeyer-Peppas model: y=k*t^n
Peppas-Sahlin model: y=kd*t^m+kr*t^(2*m)
Kopcha model: y=A *t^0.5 + B * t

Thanks





You cannot copy that code to origin. Convert VB to Origin C should be easy.


     #####
    #### _\_  ________
    ##=-[.].]| \      
    #(    _\ |  |------|
     #   __| |  ||||||||
      \  _/  |  ||||||||
   .--'--'-. |  | ____ |
  / __      `|__|[o__o]|
_(____nm_______ /____\____
will2008 Posted - 08/23/2018 : 12:15:51 PM
I would like to use release kinetic models to fit my data. For that purpose, I built the several functions as user-defined in nonlinear curve fitting. But I have to provide a Code to be executed to initialize parameters.

Due to my weakness in programming a friend of mine send me the initialization codes that he used in excel. I would like to if it is possible to copy that code in origin. The codes are written in Visual Basis.

Secondly please can origin has inbuilt functions for kinetic (dissolution) release such as:

Zero-order model: y=k*t
First order model: y=1-exp(-k*t)
Higuchi model: y=k*t^0.5
Hixson-Crowell model: y=1-(1-k*t)^3
Korsmeyer-Peppas model: y=k*t^n
Peppas-Sahlin model: y=kd*t^m+kr*t^(2*m)
Kopcha model: y=A *t^0.5 + B * t

Thanks
Castiel Posted - 08/23/2018 : 11:30:43 AM
quote:
Originally posted by will2008

Origin Ver. and Service Release (Origin 2018):
Operating System: window 10

Morning,

Please is it possible to import a code of inital parameter (Non linear regresssion) from an excel adding (macro) to origin

Thanks


Neither the problem nor the context is clearly described.


     #####
    #### _\_  ________
    ##=-[.].]| \      
    #(    _\ |  |------|
     #   __| |  ||||||||
      \  _/  |  ||||||||
   .--'--'-. |  | ____ |
  / __      `|__|[o__o]|
_(____nm_______ /____\____

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