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Dakota Reference Manual
Version 6.16
Explore and Predict with Confidence
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How to scale each continuous design variable
Alias: cdv_scale_types
Argument(s): STRINGLIST
Default: vector values = 'none'
Each string in scale_types indicates the scaling type for each continuous design variable. They only have effect when the associated method specifies scaling.
The options are:
'value' - characteristic value by which variables will be divided. If this is chosen, then scales must also be specified; 'value' is assumed if scales are given without scale_types 'auto' - automatic scaling based on bounds.'log' - logarithmic scaling (can be used together with scales).If a single string is specified it will apply to all continuous design variables. Otherwise, a scale type must be specified for each continuous design variable.
Usage Tips:
See the scaling information under specific methods, e.g., method-*-scaling for details on how to use this keyword.
Two continuous design variables, one scaled by 4.0, the other by 0.1, then further log scaled:
continuous_design = 2
initial_point -1.2 1.0
lower_bounds -2.0 0.001
upper_bounds 2.0 2.0
descriptors 'x1' "x2"
scale_types = 'value' 'log'
scales = 4.0 0.1