Skip Navigation Linksnlreg_serena


​ ​

NLREG 統計分析軟體​

NLREG is a powerful statistical analysis program that performs linear and nonlinear regression analysis, surface and curve fitting. NLREG determines the values of parameters for an equation, whose form you specify, that cause the equation to best fit a set of data values. NLREG can handle linear, polynomial, exponential, logistic, periodic, and general nonlinear functions. Unlike many "nonlinear" regression programs that can only handle a limited set of function forms, NLREG can handle essentially any function whose form you can specify algebraically. 

NLREG features a full programming language with a syntax similar to C for specifying the function that is to be fitted to the data. This allows you to compute intermediate work variables, use conditionals, and even iterate in loops. With NLREG it is easy to construct piecewise functions that change form over different domains. Since the NLREG language includes arrays, you can even use tabular look-up methods to define the function.

NLREG 是一個強大的統計分析程序,執行線性和非線性回歸分析,表面和曲線擬合。 NLREG 確定方程的參數值,該方程的形式指定使得方程最適合一組數據值。 NLREG 可以處理線性,多項式,指數,邏輯,週期和一般非線性函數。與許多只能處理有限集合的函數形式的"非線性"回歸程序不同,NLREG 可以處理基本上任何可以指定代數形式的函數。 

NLREG 具有一種完全編程語言,語法類似於 C,用於指定要擬合到數據的函數。這允許您計算中間工作變量,使用條件,甚至循環迭代。使用 NLREG,很容易構造在不同域之間改變形式的分段函數。由於 NLREG 語言包含數組,因此您甚至可以使用表格查找方法來定義函數。