blumi 4 Posted December 9, 2017 Share Posted December 9, 2017 How to keep the duplicates from an array? [1,1,2,3,3,3,3,4,5,5] the Result should be [1,3,5] Link to post Share on other sites
rootx 18 Posted December 9, 2017 Share Posted December 9, 2017 https://www.autoitscript.com/autoit3/docs/libfunctions/_ArrayUnique.htm Link to post Share on other sites
jchd 1,810 Posted December 9, 2017 Share Posted December 9, 2017 _ArrayUnique isn't the right answer here, since the OP wants to keep only a single instance of all entries which have dups in the input array. _ArrayUnique would include 4, which is single, hence shouldn't be selected. @blumi, I'd convert the array into a Map datatype (supported in AutoIt beta) keeping the count of multiple instances and converting back entries with count > 1 into an output array. This will work faster than scanning the array in O² and runtime will remain unaffected by array order. AutoIt beta has been out for long enough to be considered stable eough for practical purposes. If you're still reluctant about beta, use a scripting dictionary object instead. This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe hereRegExp tutorial: enough to get startedPCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta. SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt) Link to post Share on other sites
rootx 18 Posted December 9, 2017 Share Posted December 9, 2017 I'm sorry I have read to fast!!! Your solution.. #include<array.au3> Local $aArray[10] = [1,1,2,3,3,3,3,4,5,5] for $i = ubound($aArray) - 1 to 0 step -1 $aFound = _ArrayFindAll($aArray , $aArray[$i]) $i -= ubound($aFound) - 1 If ubound($aFound) > 1 Then ConsoleWrite("This Value "&$aArray[$aFound[0]] & " Is duplicate N Times " & ubound($aFound)&@CRLF) EndIf next Skysnake and Earthshine 2 Link to post Share on other sites
jchd 1,810 Posted December 9, 2017 Share Posted December 9, 2017 Correct, but _ArrayFindAll runs in O². That won't make a difference in small samples but will explode on serious input. Earthshine 1 This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe hereRegExp tutorial: enough to get startedPCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta. SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt) Link to post Share on other sites
Skysnake 91 Posted December 9, 2017 Share Posted December 9, 2017 For large volume data, use a SQLite memory db? CREATE TABLE `mytable` ( `value` integer, `id` integer PRIMARY KEY AUTOINCREMENT ); ------------------------ -- [1,1,2,3,3,3,3,4,5,5] insert into mytable (value) values (1) , (1) , (2) , (3) , (3) , (3) , (3) , (4) , (5) , (5) ; ----------------------------- select value, count(value) from mytable group by value having count(value) > 1; Returns value count(value) "1" "2" "3" "4" "5" "2" 3 rows returned in 18ms from: select value, count(value) from mytable group by value having count(value) > 1; Skysnake Why is the snake in the sky? Link to post Share on other sites
mikell 1,141 Posted December 9, 2017 Share Posted December 9, 2017 ? #include <Array.au3> Local $a[11] = [1,5,2,3,3,3,3,4,1,5,6] _ArraySort($a) Local $b[UBound($a)], $n For $i = 0 to UBound($a)-2 If $a[$i] = $a[$i+1] Then $b[$n] = $a[$i] $n += 1 EndIf Next ReDim $b[$n] $b = _ArrayUnique($b, 0, 0, 0, 0) _ArrayDisplay($b) Link to post Share on other sites
iamtheky 932 Posted December 10, 2017 Share Posted December 10, 2017 dont know how it compares to the redim penalty, but here is an array dance that does it in one loop #include<array.au3> Local $aArray[10] = [1,1,2,3,3,3,3,4,5,5] _ArraySort($aArray) For $i = ubound($aArray) - 1 to 1 step -1 If $aArray[$i] = $aArray[$i - 1] Then _ArrayDelete($aArray , $i) $i -= 1 If $i = 0 then exitloop $flag = 1 EndIf If $aArray[$i] <> $aArray[$i - 1] And $flag = 0 Then _ArrayDelete($aArray , $i) ElseIf $aArray[$i] <> $aArray[$i - 1] And $flag = 1 Then $flag = 0 EndIf If $flag = 1 then $i += 1 Next _ArrayDisplay($aArray , $i) ,-. .--. ________ .-. .-. ,---. ,-. .-. .-. .-. |(| / /\ \ |\ /| |__ __||| | | || .-' | |/ / \ \_/ )/ (_) / /__\ \ |(\ / | )| | | `-' | | `-. | | / __ \ (_) | | | __ | (_)\/ | (_) | | .-. | | .-' | | \ |__| ) ( | | | | |)| | \ / | | | | | |)| | `--. | |) \ | | `-' |_| (_) | |\/| | `-' /( (_)/( __.' |((_)-' /(_| '-' '-' (__) (__) (_) (__) Link to post Share on other sites
iamtheky 932 Posted December 10, 2017 Share Posted December 10, 2017 (edited) Also, this ($2 contains the non-duplicates) Local $aArray[10] = [1,1,2,3,3,3,3,4,5,5] $flag = 0 $str = StringRegExpReplace(_ArrayToString($aArray , "") , "(?:(.)\1+)+|(.)" , "$1") msgbox(0 , '' , $str) Edited December 10, 2017 by iamtheky ,-. .--. ________ .-. .-. ,---. ,-. .-. .-. .-. |(| / /\ \ |\ /| |__ __||| | | || .-' | |/ / \ \_/ )/ (_) / /__\ \ |(\ / | )| | | `-' | | `-. | | / __ \ (_) | | | __ | (_)\/ | (_) | | .-. | | .-' | | \ |__| ) ( | | | | |)| | \ / | | | | | |)| | `--. | |) \ | | `-' |_| (_) | |\/| | `-' /( (_)/( __.' |((_)-' /(_| '-' '-' (__) (__) (_) (__) Link to post Share on other sites
kylomas 418 Posted December 10, 2017 Share Posted December 10, 2017 iamthekey, Try it like this... #include <array.au3> Local $aArray[20] = [1,1,2,3,3,3,3,4,5,5,6,6] $str = StringRegExpReplace(_ArrayToString($aArray , "") , "(?:(.)\1+)+|(.)" , "$1") msgbox(0 , '' , $str) Trying to understand the pattern to see where it is failing. kylomas Forum Rules Procedure for posting code "I like pigs. Dogs look up to us. Cats look down on us. Pigs treat us as equals." - Sir Winston Churchill Link to post Share on other sites
iamtheky 932 Posted December 10, 2017 Share Posted December 10, 2017 (edited) its a straight copy/paste from https://stackoverflow.com/questions/29480579/regex-finding-non-duplicate-characters I have no idea why it works/doesnt work either. **And its all sorts of broke, if you add another 4 to your array it only returns 1 and 6 Edited December 10, 2017 by iamtheky ,-. .--. ________ .-. .-. ,---. ,-. .-. .-. .-. |(| / /\ \ |\ /| |__ __||| | | || .-' | |/ / \ \_/ )/ (_) / /__\ \ |(\ / | )| | | `-' | | `-. | | / __ \ (_) | | | __ | (_)\/ | (_) | | .-. | | .-' | | \ |__| ) ( | | | | |)| | \ / | | | | | |)| | `--. | |) \ | | `-' |_| (_) | |\/| | `-' /( (_)/( __.' |((_)-' /(_| '-' '-' (__) (__) (_) (__) Link to post Share on other sites
iamtheky 932 Posted December 10, 2017 Share Posted December 10, 2017 (edited) awww shit, think i fixed it... ;~ Local $aArray[20] = [1,1,2,2,2,3,3,3,3,4,4,4,4,4,4,5,6,6] ;~ Local $aArray[20] = [1,1,2,3,3,3,3,4,5,5,6,6] Local $aArray[20] = ["a",1,2,3,3,3,3,"a",4,5,5,6,6] _ArraySort($aArray) $str = StringRegExpReplace(_ArrayToString($aArray , "") , "(.).*\1|(.)" , "$1") edit: bear in mind this only works for sorted arrays, with single character values, or rather the first character of entries. (take off the sort and the last example returns undesired values). someone smart can probably make it more extensible. Edited December 10, 2017 by iamtheky ,-. .--. ________ .-. .-. ,---. ,-. .-. .-. .-. |(| / /\ \ |\ /| |__ __||| | | || .-' | |/ / \ \_/ )/ (_) / /__\ \ |(\ / | )| | | `-' | | `-. | | / __ \ (_) | | | __ | (_)\/ | (_) | | .-. | | .-' | | \ |__| ) ( | | | | |)| | \ / | | | | | |)| | `--. | |) \ | | `-' |_| (_) | |\/| | `-' /( (_)/( __.' |((_)-' /(_| '-' '-' (__) (__) (_) (__) Link to post Share on other sites
LarsJ 1,287 Posted December 10, 2017 Share Posted December 10, 2017 For the general solution (not limited to integers, not limited to single character values, not limited to sorted arrays) you'll not find anything faster than this. Try yourself. #include <Array.au3> Global $aArray[10] = [1,1,2,3,3,3,3,4,5,5] Global $aRes = Example( $aArray ) _ArrayDisplay( $aRes ) Global $iItems = 100000 ReDim $aArray[$iItems] For $i = 0 To $iItems - 1 Step 2 $aArray[$i] = $i/2 $aArray[$i+1] = $i/2 Next _ArrayDisplay( $aArray ) $aRes = Example( $aArray ) _ArrayDisplay( $aRes ) Func Example( $aArray ) Local $oTst = ObjCreate( "Scripting.Dictionary" ) Local $oRes = ObjCreate( "Scripting.Dictionary" ) For $i = 0 To UBound( $aArray ) - 1 If Not $oTst.Exists( $aArray[$i] ) Then $oTst( $aArray[$i] ) = 1 ElseIf Not $oRes.Exists( $aArray[$i] ) Then $oRes( $aArray[$i] ) = 1 EndIf Next Return $oRes.Keys() EndFunc Skysnake and TheDcoder 2 Controls, File Explorer, ROT objects, UI Automation, Windows Message MonitorCompiled code: Accessing AutoIt variables, DotNet.au3 UDF, Using C# and VB codeShell menus: The Context menu, The Favorites menu. Shell related: Control Panel, System Image ListsGraphics related: Rubik's Cube, OpenGL without external libraries, Navigating in an image, Non-rectangular selectionsListView controls: Colors and fonts, Multi-line header, Multi-line items, Checkboxes and icons, Incremental searchListView controls: Virtual ListViews, Editing cells, Data display functions Link to post Share on other sites
jchd 1,810 Posted December 10, 2017 Share Posted December 10, 2017 Maps are faster: expandcollapse popup#include <Array.au3> Global $iItems = 100000 Global $aArray[$iItems] For $i = 0 To $iItems - 1 $aArray[$i] = Random(0, $iItems * 0.2, 1) Next Local $t, $aRes _ArrayDisplay( $aArray ) $t = TimerInit() $aRes = Example( $aArray ) ConsoleWrite(TimerDiff($t) & @LF) _ArrayDisplay( $aRes ) $t = TimerInit() $aRes = MapExample( $aArray ) ConsoleWrite(TimerDiff($t) & @LF) _ArrayDisplay( $aRes ) Func Example( ByRef $aArray ) Local $oTst = ObjCreate( "Scripting.Dictionary" ) Local $oRes = ObjCreate( "Scripting.Dictionary" ) For $i = 0 To UBound( $aArray ) - 1 If Not $oTst.Exists( $aArray[$i] ) Then $oTst( $aArray[$i] ) = 1 ElseIf Not $oRes.Exists( $aArray[$i] ) Then $oRes( $aArray[$i] ) = 1 EndIf Next Return $oRes.Keys() EndFunc Func MapExample(ByRef $aArray) Local $mRes[] For $i = 0 To UBound($aArray) - 1 If MapExists($mRes, $aArray[$i]) Then $mRes[$aArray[$i]] += 1 Else $mRes[$aArray[$i]] = 1 EndIf Next For $i = 0 To UBound($aArray) - 1 If $mRes[$aArray[$i]] = 1 Then MapRemove($mRes, $aArray[$i]) EndIf Next Return $mRes.Keys() EndFunc pixelsearch and Skysnake 2 This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe hereRegExp tutorial: enough to get startedPCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta. SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt) Link to post Share on other sites
Champak 6 Posted July 11, 2022 Share Posted July 11, 2022 I'm looking in the help file (v3.3.16.0) and it still says maps are experimental and may be removed and this is a 5 year old thread. I would think after 5 years it's no longer experimental. Before I use this, was that overlooked and it's good to go, or is the map feature still not fleshed out? Link to post Share on other sites
jchd 1,810 Posted July 11, 2022 Share Posted July 11, 2022 AFAICT all quirks have been fixed long ago. This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe hereRegExp tutorial: enough to get startedPCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta. SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt) Link to post Share on other sites
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