RAND(A)
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RAND(A)

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Article summary

DMath: RAND(A)

Creates a random and equal distribution of values between 0 and A

Purpose

Use this function to:
  • Create evenly distributed Random data

Return Value

PropertyValue
FieldTypeDouble
FieldSizeLow / Med / High / Continuous
DataTypeDiscrete / Continuous
DataSizeShort / Integer / LongInteger / Double
Example Return Value: X*.XXXXXX....-X*.XXXXX

e.g.  21.000000, 98754654.123456, -5.000000, -654.320000


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.
Math Function“p1”: “RAND(A)”RAND(A)
A“p2”: “NumericFieldName”
“p2”: “#N*.N*”
Required.  Numeric input for Maximum/Minimum value of created data.
If A is less than 0, negative values will be created.
If A is greater than 0, positive values will be created.
Only integer values are returned - If A = 1, then RAND(A) will have a distribution between 0 and 1.
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


Usage Notes

See Also:   

  • DMATH Overview
  • Mathematical Expression Field
  • NRAND(A)  (DMATH)
  • BRAND(A)  (DMATH)
  • ANRAND(A)  (DMATH)
  • MIN(A+BANRAND(C),D)   (DMATH)
  • RAND(A)  (LMATH)

Example

ExampleDetails
DescriptionCreate a random distribution that is always between 0 and input A
Input
  • Table: = [customer]
  • Filter: = [No Filter]
  • Function: = DMath
  • Math Function = RAND(A)
  • A:= [customer ].[INPUT_A]
  • Name: = RAND_A
Sample





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