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R语言:selfStart()函数中文帮助文档(中英文对照)

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发表于 2012-2-17 09:45:58 | 显示全部楼层 |阅读模式
selfStart(stats)
selfStart()所属R语言包:stats

                                        Construct Self-starting Nonlinear Models
                                         建设自启动的非线性模型

                                         译者:生物统计家园网 机器人LoveR

描述----------Description----------

Construct self-starting nonlinear models.
建设自启动的非线性模型。


用法----------Usage----------


selfStart(model, initial, parameters, template)



参数----------Arguments----------

参数:model
a function object defining a nonlinear model or a nonlinear formula object of the form ~expression.
一个函数对象定义一个非线性模型或非线性公式对象的形式~expression。


参数:initial
a function object, taking three arguments: mCall, data, and LHS, representing, respectively, a matched call to the function model, a data frame in which to interpret the variables in mCall, and the expression from the left-hand side of the model formula in the call to nls. This function should return initial values for the parameters in model.
一个函数对象,采取三个参数:mCall,data,LHS,代表,分别以功能model,在解释数据框匹配的呼叫mCall,从左边的调用nls在模型公式表达的变量。这个函数应该返回参数的初始值,在model。


参数:parameters
a character vector specifying the terms on the right hand side of model for which initial estimates should be calculated.  Passed as the namevec argument to the deriv function.
字符向量指定model初步估计应计算在右侧的条款。传递namevecderiv功能参数。


参数:template
an optional prototype for the calling sequence of the returned object, passed as the function.arg argument to the deriv function.  By default, a template is generated with the covariates in model coming first and the parameters in model coming last in the calling sequence.
一个可选的原型返回对象的调用序列,通过function.arg函数deriv参数。默认情况下,模板生成model第一和参数协变量model来调用序列的最后。


Details

详情----------Details----------

This function is generic; methods functions can be written to handle specific classes of objects.
此功能是通用的写入方法的功能,可以处理特定的类的对象。


值----------Value----------

a function object of class "selfStart", for the formula method obtained by applying deriv to the right hand side of the model formula.  An initial attribute (defined by the initial argument) is added to the function to calculate starting estimates for the parameters in the model automatically.
一类函数对象"selfStart",formula方法申请derivmodel公式右侧获得。一个initial属性(initial参数定义)被添加到该函数自动计算模型的参数估计。


作者(S)----------Author(s)----------


Jos
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