RandomSeed test (was:randomly order a list)
dunbarx at aol.com
dunbarx at aol.com
Wed May 22 15:46:14 CDT 2013
Sorting by a randomSeed greater than the number of elements of a sample does not help.
With the following in a fld 1: aaa,bbb,ccc
and this in a button:
get fld 1
sort items of it by random(3)
put it & return after lowSeed
sort items of it by random(3333)
put it & return after highSeed
repeat with y = 1 to the number of lines of lowSeed
add 1 to lowSeedCounter[line y of lowSeed]
repeat with y = 1 to the number of lines of highSeed
add 1 to highSeedCounter[line y of highSeed]
The distribution of the two groups is about the same.
From: Dar Scott <dsc at swcp.com>
To: How to use LiveCode <use-livecode at lists.runrev.com>
Sent: Wed, May 22, 2013 3:59 pm
Subject: Re: randomly order a list
Try replacing 'the number of lines of myVar' with some huge number you think is
allowed for random(), say 999999.
With small numbers you are likely to get the same number for different lines and
perhaps sort does not change order in that case.
On May 22, 2013, at 11:59 AM, Chris Sheffield wrote:
> I have a list of three words that I need to be randomly sorted. To start with,
the first word is the correct answer to a question. I want to re-order the list
so that the correct answer may be the second or third word, and not necessarily
the first. How can I do this successfully every time? The docs give an example
> sort lines of myVar by random(the number of lines of myVar)
> But this only seems to work successfully one time. After that, the list is
always set so the first word is the correct answer. So then I tried randomly
setting the randomSeed value, since this value is supposed to affect the
random() function and the any keyword, but this didn't seem to make much
difference except to change it so either the second or third word is *always*
the right answer. I need it to be more mixed up than that.
> So does anyone have a good way to do this?
> Chris Sheffield
> Read Naturally, Inc.
Dar Scott Consulting
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Computer programming and tinkering,
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