Re: Looping though a numerically indexed array
David, Maybe there are better ways, but here's what I always do when I have an array with numbered keys... put the keys of pArray into aKeys sort lines of aKeys numeric repeat for each line k in aKeys //do something with pArray[k] end repeat Hope that helps. :) -Dan On 9/10/20, 2:39 PM, "use-livecode on behalf of David Bovill via use-livecode" wrote: Ah that explains it. The extents works but I seem to remember for each is considerably faster On 2 Sep 2020, 16:29 +0100, Brian Milby via use-livecode , wrote: > As long as the array is indexed starting at 1 with no gaps it should work by looping for each element. I just did a quick test to confirm. I built a 100 element array and it looped in order. I deleted 2 keys and then it didn’t. I then added those 2 missing keys back and it worked again. > > Sent from my iPhone > > > On Sep 2, 2020, at 10:55 AM, David Bovill via use-livecode wrote: > > > > I’m pretty sure there must be a way to efficiently loop through numerically indexed arrays > > > > Repeat for each key and repeat for each element does not seem to sort the keys in numeric order,. Of course I can get the keys and sort them before repeating - but is there a more efficient way? > > ___ > > use-livecode mailing list > > use-livecode@lists.runrev.com > > Please visit this url to subscribe, unsubscribe and manage your subscription preferences: > > http://lists.runrev.com/mailman/listinfo/use-livecode > > ___ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Looping though a numerically indexed array
Ah that explains it. The extents works but I seem to remember for each is considerably faster On 2 Sep 2020, 16:29 +0100, Brian Milby via use-livecode , wrote: > As long as the array is indexed starting at 1 with no gaps it should work by > looping for each element. I just did a quick test to confirm. I built a 100 > element array and it looped in order. I deleted 2 keys and then it didn’t. I > then added those 2 missing keys back and it worked again. > > Sent from my iPhone > > > On Sep 2, 2020, at 10:55 AM, David Bovill via use-livecode > > wrote: > > > > I’m pretty sure there must be a way to efficiently loop through numerically > > indexed arrays > > > > Repeat for each key and repeat for each element does not seem to sort the > > keys in numeric order,. Of course I can get the keys and sort them before > > repeating - but is there a more efficient way? > > ___ > > use-livecode mailing list > > use-livecode@lists.runrev.com > > Please visit this url to subscribe, unsubscribe and manage your > > subscription preferences: > > http://lists.runrev.com/mailman/listinfo/use-livecode > > ___ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Looping though a numerically indexed array
It appears I have that backwards? Bob S > On Sep 2, 2020, at 8:28 AM, Bob Sneidar wrote: > > Ditto, and I am not sure what noticeable impact one method would have over > another. There was some blurb a long time ago about how these keys are > internally sorted. I believe what was proposed is that a set of NUMERIC keys > beginning with 0 would actually sort correctly. > > Bob S > > >> On Sep 2, 2020, at 8:24 AM, Ralph DiMola via use-livecode >> wrote: >> >> David, >> >> Nope you have to sort them NUMERIC. As you said this is the only way I know >> of. I do this all the time. I don't know of any other way. >> >> put the keys of tMyArray into tKeys >> sort lines of tKeys numeric >> repeat for each line tKey in tKeys >> >> -- do what you want with tMyArray[tKey] >> -- this line will put the array data in the message box (assuming there is >> no other sub keys in each numeric array entry). >> put tMyArray[tKey] into tMyVar >> >> end repeat >> >> Ralph DiMola >> IT Director >> Evergreen Information Services >> rdim...@evergreeninfo.net >> >> -Original Message- >> From: use-livecode [mailto:use-livecode-boun...@lists.runrev.com] On Behalf >> Of David Bovill via use-livecode >> Sent: Wednesday, September 02, 2020 10:55 AM >> To: How to use LiveCode >> Cc: David Bovill >> Subject: Looping though a numerically indexed array >> >> I’m pretty sure there must be a way to efficiently loop through numerically >> indexed arrays >> >> Repeat for each key and repeat for each element does not seem to sort the >> keys in numeric order,. Of course I can get the keys and sort them before >> repeating - but is there a more efficient way? >> ___ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode >> >> >> ___ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode > ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Looping though a numerically indexed array
If the array is indexed from 1 with no gaps, you can do repeat with I = 1 to item 2 of line 1 of the extents of myArray Alex > On 2 Sep 2020, at 15:54, David Bovill via use-livecode > wrote: > > I’m pretty sure there must be a way to efficiently loop through numerically > indexed arrays > > Repeat for each key and repeat for each element does not seem to sort the > keys in numeric order,. Of course I can get the keys and sort them before > repeating - but is there a more efficient way? > ___ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Looping though a numerically indexed array
Ditto, and I am not sure what noticeable impact one method would have over another. There was some blurb a long time ago about how these keys are internally sorted. I believe what was proposed is that a set of NUMERIC keys beginning with 0 would actually sort correctly. Bob S > On Sep 2, 2020, at 8:24 AM, Ralph DiMola via use-livecode > wrote: > > David, > > Nope you have to sort them NUMERIC. As you said this is the only way I know > of. I do this all the time. I don't know of any other way. > > put the keys of tMyArray into tKeys > sort lines of tKeys numeric > repeat for each line tKey in tKeys > > -- do what you want with tMyArray[tKey] > -- this line will put the array data in the message box (assuming there is no > other sub keys in each numeric array entry). > put tMyArray[tKey] into tMyVar > > end repeat > > Ralph DiMola > IT Director > Evergreen Information Services > rdim...@evergreeninfo.net > > -Original Message- > From: use-livecode [mailto:use-livecode-boun...@lists.runrev.com] On Behalf > Of David Bovill via use-livecode > Sent: Wednesday, September 02, 2020 10:55 AM > To: How to use LiveCode > Cc: David Bovill > Subject: Looping though a numerically indexed array > > I’m pretty sure there must be a way to efficiently loop through numerically > indexed arrays > > Repeat for each key and repeat for each element does not seem to sort the > keys in numeric order,. Of course I can get the keys and sort them before > repeating - but is there a more efficient way? > ___ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > > > ___ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
RE: Looping though a numerically indexed array
David, Nope you have to sort them NUMERIC. As you said this is the only way I know of. I do this all the time. I don't know of any other way. put the keys of tMyArray into tKeys sort lines of tKeys numeric repeat for each line tKey in tKeys -- do what you want with tMyArray[tKey] -- this line will put the array data in the message box (assuming there is no other sub keys in each numeric array entry). put tMyArray[tKey] into tMyVar end repeat Ralph DiMola IT Director Evergreen Information Services rdim...@evergreeninfo.net -Original Message- From: use-livecode [mailto:use-livecode-boun...@lists.runrev.com] On Behalf Of David Bovill via use-livecode Sent: Wednesday, September 02, 2020 10:55 AM To: How to use LiveCode Cc: David Bovill Subject: Looping though a numerically indexed array I’m pretty sure there must be a way to efficiently loop through numerically indexed arrays Repeat for each key and repeat for each element does not seem to sort the keys in numeric order,. Of course I can get the keys and sort them before repeating - but is there a more efficient way? ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Looping though a numerically indexed array
As long as the array is indexed starting at 1 with no gaps it should work by looping for each element. I just did a quick test to confirm. I built a 100 element array and it looped in order. I deleted 2 keys and then it didn’t. I then added those 2 missing keys back and it worked again. Sent from my iPhone > On Sep 2, 2020, at 10:55 AM, David Bovill via use-livecode > wrote: > > I’m pretty sure there must be a way to efficiently loop through numerically > indexed arrays > > Repeat for each key and repeat for each element does not seem to sort the > keys in numeric order,. Of course I can get the keys and sort them before > repeating - but is there a more efficient way? > ___ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
