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c.haslam

_ArraySort(): bug or change in help file [Neither]

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c.haslam

I have done some experimenting with _ArraySort() on a 2D array containing only string elements. The array is generated with:

Local $ar[200][5]
For $i = 0 to 199
    for $j = 0 to 4
        Local $n = Chr(Random(97,122,1))
        $ar[$i][$j] = $n&StringFormat('%03u',$i)&'_'&$j
    Next
Next

My observations:

  • _ArraySort($ar,0,0,0,0) sorts the array on all columns
  • _ArraySort($ar,0,0,0,$n) for $n from 1 to 3 sorts on column $n

So there seems to be no way of sorting only on the first column, column 0.

The help for the latest beta says $isubItem  Sub-index to sort on in 2D arrays (default 0 = first column)

Is this a bug or does the help page need to be changed? Many people (including me) have probably coded _ArraySort($ar,0,0,0,0) to sort a whole array.

Edited by Melba23
Amended title

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jchd

So there seems to be no way of sorting only on the first column, column 0.

 _ArraySort($ar) will do that, just like _ArraySort($ar, 0, 0, 0, 0). I don't see columns 1...4 sorted anyway (release or beta). Sort applies to column 0 only.


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Melba23

c.haslam,

_ArraySort works on all columns (including column 0) for me:

#include <Array.au3>

Local $ar[10][5]
For $i = 0 To 9
    For $j = 0 To 4
        Local $n = Chr(Random(97, 122, 1))
        $ar[$i][$j] = $n & StringFormat('%03u', $i) & '_' & $j
    Next
Next

_ArrayDisplay($ar, "Unsorted", Default, 8)

For $i = 0 To 4
    _ArraySort($ar, 0, 0, 0, $i)
    _ArrayDisplay($ar, "Sorted on col: " & $i, Default, 8)
Next

M23


Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______Open Open spoiler to see my UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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c.haslam

Thanks. Strange!


Spoiler

CDebug Dumps values of variables including arrays and DLL structs, to a GUI, to the Console, and to the Clipboard

 

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