[求助]nlin过程的语法

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关键词：Nlin Lin 求助 语法 Nlin

顺便求一下candisc过程的语法.

The NLIN Procedure

Syntax: NLIN Procedure

PROC NLIN <options> ;
BOUNDS inequality <, ..., inequality> ;
BY variables ;
CONTROL variable <=values> <...variable <=values>> ;
DER. parameter=expression ;
DER. parameter.parameter=expression ;
ID variables ;
MODEL dependent=expression ;
OUTPUT OUT=SAS-data-set keyword=names <...keyword=names> ;
PARAMETERS <parameter-specification> <,..., parameter-specification>
< / PDATA=SAS-data-set> ;
RETAIN variable <=values> <...variable <=values>> ;
Programming Statements ;
The statements in the NLIN procedure, in addition to the PROC NLIN statement, are as follows:

BOUNDS
constrains the parameter estimates within specified bounds

BY
specifies variables to define subgroups for the analysis

DER
specifies the first or second partial derivatives

ID
specifies additional variables to add to the output data set

MODEL
defines the relationship between the dependent and independent variables (the mean function)

OUTPUT
creates an output data set containing observation-wise statistics

PARAMETERS
identifies parameters to be estimated and their starting values

Programming Statements
includes, for example, assignment statements, ARRAY statements, DO loops, and other program control statements. These are valid SAS expressions that can appear in the DATA step. PROC NLIN enables you to create new variables within the procedure and use them in the nonlinear analysis. These programming statements can appear anywhere in the PROC NLIN code, but new variables must be created before they appear in other statements. The NLIN procedure automatically creates several variables that are also available for use in the analysis. See the section Special Variables for more information.

The PROC NLIN, PARAMETERS, and MODEL statements are required.

zhengpan85 发表于 2007-1-13 09:56
顺便求一下candisc过程的语法.

The CANDISC Procedure

Syntax: CANDISC Procedure

The following statements are available in PROC CANDISC:

PROC CANDISC <options> ;
CLASS variable ;
BY variables ;
FREQ variable ;
VAR variables ;
WEIGHT variable ;
The BY, CLASS, FREQ, VAR, and WEIGHT statements are described after the PROC CANDISC statement.