Specify observed data sets for use in plots or parameter estimation

Syntax


data @file=’<CSV file name>’ <dataset name> …

   <model variable 1>=’<column name 1>’ …

   <model variable 2>=’<column name 2>’ …

   <model constant 1>=<value 1> …

   <model constant 2>=<value 2> …

Description


The DATA statement is used to specify observed data values for use in plots or parameter estimation.  Each data state loads a data set from a comma-separated-values (CSV) file specified by the @file flag.  Columns in this file are associated with model variables by specifying a list of model variable name – column name pairs.  Typically, the value of the independent variable (e.g., time) will be included in this list.  Any values of model parameters associated with experimental conditions are additionally specified using a list of constant name – constant value pairs.  This information is not used in plots, but is frequently required for parameter estimation runs (when used in conjunction with the FIT command) where multiple data sets are included representing different experimental conditions (factors or descriptor variables).  The dataset name argument should be unique within the scope of the containing script file; this name is used to reference the data set in plot commands.  Note that this name should generally be a valid CSL variable name.  If it is desired for the dataset name to begin with a numeric value, the dataset name argument should be wrapped in single quotes.

Example


! Load data and set descriptors for all subjects...

data @file='butadiene.csv' ds1e1 t='T' c_exh='S1E1' tstop=60 BDW=86.2600 height=1.7400 Sex=1 Age=28