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      Remap (LMATH)
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      Contents

      Remap (LMATH)

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      Article summary

      LMath: Remap (A, B)

      Available from v7.3.2.01

      Map a continuous numeric field to a discrete numeric field

      Purpose

      Use this function to:
      • Turn a continuous field into a numeric field so that it can be used in functions requiring discrete fields.
      • Scale a field

      Return Value

      PropertyValue
      FieldTypeLongInteger
      FieldSizeHigh
      DataTypeDiscrete
      DataSizeShort / Integer / LongInteger

      Parameters

      ParameterJSONDescription
      Table“targetTable”: “MyTableName”The target table on which the new field will be created
      Filter“dataset”: {DataSet_JSON}Optional.   If a filter is applied, records not in the filter recordset will be returned as null.
      LMath Function“p1”: “”"Remap"
      A“p2”: “NumericFieldName”
      		Required.  Field to remap
      Supports:  
      • DataType: Discrete / Continuous
      • Field Type: Integer, Double
      B“p3”: “SizeOfRange”
      “p3”: “#N*”      		Required.  Size of the range to map the field to.
      Supports:  
      • Fixed Value:  #N*    e.g. #201596,    #-87
      • Fixed Value: #N*.N* e.g. #201596.05,    #-87.98
      Treat Null as Zero"nullIsZero": true
      "nullIsZero": false

      		True/False.
      Default = False
      If true, then any null values in the input fields will be treated as if they have a value of 0.

      JSON Sample

      The following remaps the field "y_latitude" into field "REMAP y_latitude", where "REMAP y_latitude" has a potential range of 100,000 discrete values

      {
  "method": "BuildBakedField",
  "project": "REGRESS_PackageInject",
  "targetTable": "DATA_SRC",
  "overwrite": true,
  "name": "REMAP y_latitude",
  "function": "lmath",
  "p1": "REMAP(A,B)",
  "p2": "y_latitude",
  "p3": "#100000"
}


      Usage Notes

      See Also:   

      Example

      ExampleDetails
      DescriptionReduce discrete values of continuous double latitude field by scaling to fit a specified range
      Input
      • Table: = [DATA_SRC]
      • Filter: = [No Filter]
      • Function: = LMath
      • Math Function = Remap(A,B)
      • A:= [DATA_SRC].[y_latitude]
      • B:= #100000
      • Name: = REMAP y_latitude
      Sample




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