ndCurveMaster free download for Mac


28 January 2020

Generation of nonlinear equations using multiple regression.


ndCurveMaster is the first and only program to find the ideal equation to allows the auto-fitting of an unlimited number of input variables, for example: y= a0 + a1*x1^(-11) + a2*x3 + a3*x5^3 + a4*[ln(x8)]^3 + a5*[exp(x1*x4)]^(-2) + a6*x1*x8^2 + a7*ln(x2*x6) + a8*x3*x4. It was designed to find optimum nonlinear equations to describe empirical data using only a multiple-regression method, and is the first regression program that offers an overfitting detection option.

ndCurveMaster was tested positive for 500,000 cases and 10 variables.

  • Auto-fitting of an unlimited number of input variables: x1, x2, x3,..., xn and their combinations: x1*x2, x1*x3, x2*x3,...,x1*x3*x3,..., x(n-2)* x(n-1)*xn
  • Detect and prevent overfitting
  • Optimized to work with large amounts of data
  • Heuristic techniques for data fitting by the use of random iterated or full random search alghorithms
  • Full statistical analysis of every equation
  • Stepwise regression with backward elimination
  • Multicollinearity detection by the use of a Variance inflation factor (VIF)
  • Detect and prevent overfitting
  • The model with or without an intercept term
  • User can freely expand or reduce the model
Powerful and easy to use
  • Import data from CSV, XLSX, XLS spreadsheets
  • History and ranking of results
  • Fast, medium and high detailed search
  • Copy or save to CSV file options
  • Any value of significance level alpha
  • Optimized to deal with large amounts of data

What's new in ndCurveMaster

  • Weight data for individual data points in any column,
  • Search for models with a VIF limit value,
  • Manual model expansion by manually adding a new nonlinear predictor variable,
  • The ability to lock the predictor variable option to not modify a preselected predictor variable while searching.

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