Structured Data Transform Language
0.3

Getting Started

  • Summary
  • Components of SDTL
  • SDTL Use Cases
  • SDTL Command Language
  • SDTL Function Library
  • SDTL Pseudocode Library Schema
  • SDTL Best Practices and Conventions
  • Credits
  • Copyright and License

Topics

  • All

Items and Fields

  • All Item Types
  • All Composite Types
    • Aggregate
    • AllNumericVariablesExpression
    • AllTextVariablesExpression
    • AllVariablesExpression
    • Analysis
    • AppendDatasets
    • AppendFileDescription
    • BooleanConstantExpression
    • Collapse
    • CommandBase
    • Comment
    • CompositeVariableNameExpression
    • Compute
    • DataframeDescription
    • DateTimeConstant
    • DoIf
    • DropCases
    • DropVariables
    • Execute
    • ExpressionBase
      • Properties
      • Item Type Hierarchy
      • Relationships
    • FunctionArgument
    • FunctionCallExpression
    • GroupedExpression
    • IfRows
    • InformBase
    • Invalid
    • IteratorDescription
    • IteratorSymbolExpression
    • KeepCases
    • KeepVariables
    • Load
    • LoopOverList
    • LoopWhile
    • MergeDatasets
    • MergeFileDescription
    • Message
    • MissingValueConstantExpression
    • NewDataframe
    • NoTransformOp
    • NumberRangeExpression
    • NumericConstantExpression
    • NumericMaximumValueExpression
    • NumericMinimumValueExpression
    • Recode
    • RecodeRule
    • RecodeVariable
    • Rename
    • RenamePair
    • ReshapeItemDescription
    • ReshapeLong
    • ReshapeWide
    • Save
    • SetDatasetProperty
    • SetDataType
    • SetDisplayFormat
    • SetMissingValues
    • SetValueLabels
    • SetVariableLabel
    • SortCases
    • SortCriterion
    • SourceInformation
    • StringConstantExpression
    • StringRangeExpression
    • TimeDurationConstant
    • TransformBase
    • UnhandledValuesExpression
    • Unsupported
    • ValueLabel
    • ValueListExpression
    • VariableListExpression
    • VariableRangeExpression
    • VariableReferenceBase
    • VariableSymbolExpression
Structured Data Transform Language
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  • All Composite Types »
  • ExpressionBase
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ExpressionBase¶

The SDTL types in ExpressionBase are used in expressions, which may be numeric, text or logical.

Properties¶

This type contains no properties.

Item Type Hierarchy¶

  • ExpressionBase
    • BooleanConstantExpression
    • DateTimeConstant
    • FunctionCallExpression
    • GroupedExpression
    • IteratorSymbolExpression
    • MissingValueConstantExpression
    • NumberRangeExpression
    • NumericConstantExpression
    • NumericMaximumValueExpression
    • NumericMinimumValueExpression
    • StringConstantExpression
    • StringRangeExpression
    • TimeDurationConstant
    • UnhandledValuesExpression
    • ValueListExpression
    • VariableReferenceBase

Relationships¶

The following types reference this type.

  • AppendFileDescription
  • CompositeVariableNameExpression
  • Compute
  • DoIf
  • DropCases
  • FunctionArgument
  • GroupedExpression
  • IfRows
  • IteratorDescription
  • KeepCases
  • LoopWhile
  • MergeFileDescription
  • NumberRangeExpression
  • RecodeRule
  • ReshapeItemDescription
  • SetMissingValues
  • ValueListExpression
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