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Groups > comp.sys.acorn.programmer > #5776
| From | Paul Oates <oatespaul@btinternet.com> |
|---|---|
| Newsgroups | comp.sys.acorn.programmer |
| Subject | Re: Specific numbers but in a random sequence |
| Date | 2019-06-22 17:52 +0100 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <ceae35c857.Paul@oatespaul.btinternet.com> (permalink) |
| References | <57c7c5d6c0basura@invalid.addr.uk> <qeji40$7ca$1@dont-email.me> <qel12p$ibq$1@dont-email.me> <57c82fa1bdbasura@invalid.addr.uk> |
In message <57c82fa1bdbasura@invalid.addr.uk>
Richard Ashbery <basura@invalid.addr.uk> wrote:
> In article <qel12p$ibq$1@dont-email.me>,
> druck <news@druck.org.uk> wrote:
>> On 21/06/2019 22:27, Gavin Crawford wrote:
>>> Richard Ashbery <basura@invalid.addr.uk> Wrote in message:
> [snip]
> 3,4,5,6,8,9,10,12,15,18,20,24,30,36,45,60,90,120I would like to be
> able to use these variables in a random sequence.
>>> Why not put them into an array and use a random number to choose
>>> the array index.
>> Yes, and make sure you seed the random number generator, or it may
>> always go through the same pseudo random sequence each time its run.
>> IIRC to seed do RND(-TIME) before any other call to RND.
> Not quite there yet - if I use the following...
> DIM array%(18)
> array%() = 3,4,5,6,8,9,10,12,15,18,20,24,30,36,45,60,90,120
> y = RND(-TIME)
> FOR loop = 1 TO 5
> FOR I% = 0 TO 18
> PRINT array%(RND(I%))
> NEXT I%
> NEXT loop
> 90 random numbers gives poor distribution:
> 3 x10
> 4 x14
> 5 x16
> 6 x8
> 8 x9
> 9 x4
> 10 x6
> 12 x3
> 15 x2
> 18 x3
> 20 x7
> 24 x7
> 30 x2
> 36 none
> 45 none
> 60 x2
> 90 none
> 120 x1
> 5 is repeated 3 times in a row.
> Is there any way of improving it?
> Richard
When I% is low doesn't RND(I%) give only a very limited choice; would
RND(18) be better?
--
Paul Oates
oatespaul@btinternet.com
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Specific numbers but in a random sequence Richard Ashbery <basura@invalid.addr.uk> - 2019-06-21 21:31 +0100
Re:Specific numbers but in a random sequence Gavin Crawford <gc@dentrassis.com> - 2019-06-21 22:27 +0100
Re: Specific numbers but in a random sequence druck <news@druck.org.uk> - 2019-06-22 11:48 +0100
Re: Specific numbers but in a random sequence Richard Ashbery <basura@invalid.addr.uk> - 2019-06-22 12:03 +0100
Re: Specific numbers but in a random sequence Richard Ashbery <basura@invalid.addr.uk> - 2019-06-22 16:46 +0100
Re: Specific numbers but in a random sequence Someone Somewhere <nntpac@gmail.com> - 2019-06-22 17:11 +0100
Re: Specific numbers but in a random sequence Richard Ashbery <basura@invalid.addr.uk> - 2019-06-22 18:21 +0100
Re: Specific numbers but in a random sequence Steve Fryatt <news@stevefryatt.org.uk> - 2019-06-22 21:29 +0100
Re: Specific numbers but in a random sequence Richard Ashbery <basura@invalid.addr.uk> - 2019-06-23 11:17 +0100
Re: Specific numbers but in a random sequence Ian <Ian.Hamilton@AAUG.net> - 2019-06-23 12:07 +0100
Re: Specific numbers but in a random sequence Paul Oates <oatespaul@btinternet.com> - 2019-06-23 13:17 +0100
Re: Specific numbers but in a random sequence Steve Fryatt <news@stevefryatt.org.uk> - 2019-06-23 13:51 +0100
Re: Specific numbers but in a random sequence Richard Ashbery <basura@invalid.addr.uk> - 2019-06-23 14:10 +0100
Re: Specific numbers but in a random sequence Steve Fryatt <news@stevefryatt.org.uk> - 2019-06-23 15:59 +0100
Re: Specific numbers but in a random sequence Richard Ashbery <basura@invalid.addr.uk> - 2019-06-23 17:14 +0100
Re: Specific numbers but in a random sequence Richard Ashbery <basura@invalid.addr.uk> - 2019-06-23 14:01 +0100
Re: Specific numbers but in a random sequence Paul Oates <oatespaul@btinternet.com> - 2019-06-22 17:52 +0100
Re: Specific numbers but in a random sequence Julian Fry <julianfry@orpheusmail.co.uk> - 2019-06-22 17:56 +0100
Re: Specific numbers but in a random sequence Julian Fry <JulianFry@compuserve.com> - 2019-06-22 18:05 +0100
Re: Specific numbers but in a random sequence Sebastian Barthel <naitsabes@freenet.de> - 2019-06-24 07:37 +0000
Re: Specific numbers but in a random sequence Richard Ashbery <basura@invalid.addr.uk> - 2019-06-24 20:13 +0100
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