A (LMATH)
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A (LMATH)

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Article summary

LMath: A

Creates an  integer copy of Field A

Purpose

Use this function to:
  • Turn a decimal field into a integer
  • Create a copy of an existing numeric field
  • Create a filtered copy of an existing field
  • Create a copy of an existing field where null values are mapped to zero

Return Value

PropertyValue
FieldTypeInteger
FieldSizeMed - Up to 65,630 unique values
High  - up to 1,000,000 unique values
Continuous - greater than 1,000,000 unique values
DataTypeDiscrete / Continuous
DataSizeShort / Integer
Example Return Value: X...-X

e.g.  21, 98754654, -5, -654

A_Sample

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.
Note: Records not in the filter will still be treated as null, even if [Treat Null as Zero] is true.
Math Function“p1”: “A”A
A“p2”: “NumericFieldName”
“p2”: “#N*.N*”
Required. 
Supports:  
  • DataType: Discrete / Continuous
  • Field Type: Integer, Double
  • 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

{
  "method": "BuildBakedField",
  "project": "JoinDiscreteContinuous",
  "targetTable": "worldcities",
  "overwrite": true,
  "name": "lat_lines",
  "function": "lmath",
  "p1": "A",
  "p2": "lat"
}


Usage Notes

Note: no rounding of data occurs when using A(LMath) to convert a decimal to an integer.   The integer portion of the decimal number is kept, and the decimal portion is discarded.

See Also:   

  • LMath Overview
  • A(DMath)
  • CopyDiscrete

Example

ExampleDetails
DescriptionObtain integer portion of longitude
Input
  • Table: = [worldcities]
  • Filter:= None
  • Function: = LMath
  • Math Function = A
  • A:= [worldcities].[lon]
  • Treat Null as Zero: = false
  • Name: = lon_lines
SampleA_Example





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