; FAS_Random2DArray
; -----------------
; Creates/returns a 2D array of random data
; FAS_Random2DArray( _
;     $iRows, _         ; Number of rows in the array
;     $aColumns, _      ; Number of columns in the array and data types, see 1) in docu
;     $sSource = "", _  ; Character source for string columns, random strings are created from these characters
;     $bRetArray = 1, _ ; True to return array, else the array is stored as a global variable in compiled code
;     $bProgress = 0 )  ; True to calculate progress info while creation of the array is performed


; 1) $aColumns parameter
; Five data types are supported: string, integer, float (double), date and time. Strings are created from the
; $sSource character source. Date and time types are created as proper date and time values and are stored as
; 8 and 6 digit integers.
;
; In addition, a "row/col" data type showing row/col index in array elements is supported: A string data type
; on the format "row/col". This data type is valuable during testing and debugging. And it's very fast to cre-
; ate the data. Especially in AutoIt code.
;
; The data types can be specified in this way:
; Strings,   String,   str,      s
; Integers,  Integer,  int,      i
; Floats,    Float,    flo, flt, f
; Dates,     Date,     dat, dte, d
; Times,     Time,     tim, tme, t
; Rows/Cols, RowsCols, Row/Col, RowCol, r/c, rc, r, c
;
; $aColumns can be specified in three ways:
; 1. As a string: "sifdtr", only one letter abbreviations for the data types can be used
;     Examples:   "sifdtr", 6 columns of strings, integers, floats, dates, times and row/col
;                 "dtsss",  2 columns of dates and times and 3 columns of strings
;                 "ffffff", 6 columns of floats
;
; 2. As a 1D array: [ "s", "i", "f", "d", "t", "r" ], [ "str", "int", "f" ], [ "date", "string" ]
; Purpose of the array is to avoid one letter abbreviations.
;
; 3. As a 2D array:
; Local $aColumns = [ _
;     [ "Strings",   min, max, duplpct ], _    ; min (          0, default   16),  max (      1024, default 32)          is length of the strings
;     [ "Integers",  min, max, duplpct ], _    ; min (-2147483646, default    0),  max (2147483646, default $iRows - 1)  is size of integers
;     [ "Floats",    min, max, duplpct ], _    ; min (-2147483646, default    0),  max (2147483646, default $iRows - 1)  is size of floats
;     [ "Dates",     min, max, duplpct ], _    ; min (          0, default 2010),  max (      9999, default 2020)        is year of dates
;     [ "Times",     min, max, duplpct ], _    ; min (          0, default    0),  max (        23, default 23)          is hour of times
;     [ "Rows/cols", 0,   0,   0       ] ]     ; min, max and duplpct cannot be specified for row/col columns
;
; Duplpct is the minimum number of duplicates as a percentage. Default is 0% duplicates. However, in the code,
; there is no guarantee that duplicates are not generated. Except for row/col columns that are unique.
;
; Examples:
; Local $aColumns = [ _
;     [ "String",  20,   35,         30 ], _ ; 30% duplicates
;     [ "Integer", 0,    $iRows - 1, 20 ], _ ; 20% duplicates
;     [ "Float",   0,    $iRows - 1, 10 ], _ ; 10% duplicates
;     [ "Date",    2000, 2017 ], _
;     [ "Time",    0,    23   ], _
;     [ "Row/col" ] ]
;
; Local $aColumns = [ _
;     [ "str", 24 ], _ ; Minimum length of strings is 24 characters instead of default 16
;     [ "int" ] ]