\itemize[random] does not work

\itemize[random] does not work

[Marcin Borkowski]

Hello,

I've noticed that \startitemize[random] does not mix the items randomly.
Is it a bug or am I doing something wrong?

Here's the code (tested on context live):

\starttext
\startitemize[a,random]
\item A
\item B
\item C
\stopitemize
\stoptext

Regards

-- 
Marcin Borkowski (http://mbork.pl)
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Re: \itemize[random] does not work

[Wolfgang Schuster]

On Fri, Feb 27, 2009 at 11:57 AM, Marcin Borkowski
<mbork@atos.wmid.amu.edu.pl> wrote:
> Hello,
>
> I've noticed that \startitemize[random] does not mix the items randomly.
> Is it a bug or am I doing something wrong?

A simple \item is not enough, you need a \startitem ... \stopitem pair.
Please add a note to the wiki.

\startitemize[a,random]
\startitem A \stopitem
\startitem B \stopitem
\startitem C \stopitem
\stopitemize

Wolfgang
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Re: \itemize[random] does not work

[Marcin Borkowski]

Dnia Fri, Feb 27, 2009 at 12:25:39PM +0100, Wolfgang Schuster napisał(a):
> On Fri, Feb 27, 2009 at 11:57 AM, Marcin Borkowski
> <mbork@atos.wmid.amu.edu.pl> wrote:
> > Hello,
> >
> > I've noticed that \startitemize[random] does not mix the items randomly.
> > Is it a bug or am I doing something wrong?
> 
> A simple \item is not enough, you need a \startitem ... \stopitem pair.
> Please add a note to the wiki.
> 
> \startitemize[a,random]
> \startitem A \stopitem
> \startitem B \stopitem
> \startitem C \stopitem
> \stopitemize

Thanks for a speedy response!

I've also noticed a strange thing: the first item always is the first -
it won't get mixed with the others.

> Wolfgang

Regards

-- 
Marcin Borkowski (http://mbork.pl)

888 * ostre słowa * ostra muzyka * ostra płyta
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Re: \itemize[random] does not work

[Wolfgang Schuster]

2009/2/27 Marcin Borkowski <mbork@atos.wmid.amu.edu.pl>:

> Thanks for a speedy response!
>
> I've also noticed a strange thing: the first item always is the first -
> it won't get mixed with the others.

This is normal although I have here a document [1] where the first item
always appear between the other items, you can try if this did also
happen for you.

[1] http://wolfgang.schuster.googlepages.com/baytex

Wolfgang
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Re: \itemize[random] does not work

[Aditya Mahajan]

On Fri, 27 Feb 2009, Wolfgang Schuster wrote:

> 2009/2/27 Marcin Borkowski <mbork@atos.wmid.amu.edu.pl>:
>
>> Thanks for a speedy response!
>>
>> I've also noticed a strange thing: the first item always is the first -
>> it won't get mixed with the others.
>
> This is normal although I have here a document [1] where the first item
> always appear between the other items,

There is a bug somewhere in the initialization of the random number 
generator. The first random number is always 1. An easy work around is to 
add \nextrandom somewhere before \starttext and then the first item will 
be random.

Aditya
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Re: \itemize[random] does not work

[Curious Learn]

I was not aware of this cool feature in Context. This could be very useful in
making multiple choice tests. I have one question. Is there a simple way in
which one can switch between itemized lists that are random and non-random? For
example, if I have 40 multiple choice questions, each of which has the following
form:

Question Text
\startitemize[random]
\startitem first item \stopitem
\startitem second item \stopitem
\startitem third item \stopitem
\startitem fourth item \stopitem
\stopitemize

If I want the PDF file that has the items in the order I entered them in (i.e.,
not a random permutation); is it possible to do that in a way other than going
and taking out the "random" from each itemize environment?

Thanks.


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Re: \itemize[random] does not work

[Aditya Mahajan]

On Fri, 27 Feb 2009, Curious Learn wrote:

> I was not aware of this cool feature in Context. This could be very useful in
> making multiple choice tests. I have one question. Is there a simple way in
> which one can switch between itemized lists that are random and non-random? For
> example, if I have 40 multiple choice questions, each of which has the following
> form:
>
> Question Text
> \startitemize[random]
> \startitem first item \stopitem
> \startitem second item \stopitem
> \startitem third item \stopitem
> \startitem fourth item \stopitem
> \stopitemize
>
> If I want the PDF file that has the items in the order I entered them in (i.e.,
> not a random permutation); is it possible to do that in a way other than going
> and taking out the "random" from each itemize environment?

Use modes:

\defineitemgroup[choices]

\startmode[random]
   \setupitemgroup[choices][1][random]
   \nextrandom % to get rid of the randomize bug
\stopmode


\starttext

\startchoices[n]
   \startitem 1 \stopitem
   \startitem 2 \stopitem
   \startitem 3 \stopitem
   \startitem 4 \stopitem
   \startitem 5 \stopitem
\stopchoices

\stoptext

Compile this file with "texexec --mode=random " to get random choices, 
compile without --mode=... to get normal behaviour. If you want random all 
the time and normal a few times, then change 
\startmode[random]...\stopmode
to
\stopnotmode[nonrandom] .... \stopnotmode.

Then when you compile with texexec --mode=nonrandom you will not get 
random choices, if you compile without --mode=... you will get random 
answers.

Aditya
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Re: \itemize[random] does not work

[Curious Learn]

Aditya Mahajan <adityam <at> umich.edu> writes:

> \defineitemgroup[choices]
> 
> \startmode[random]
>    \setupitemgroup[choices][1][random]
>    \nextrandom % to get rid of the randomize bug
> \stopmode

> Compile this file with "texexec --mode=random " to get random choices, 
> compile without --mode=... to get normal behaviour. 

Thanks very much Aditya. That's awesome. I am going to try that for the next
test I make.









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Re: \itemize[random] does not work

[batela]

[-- Attachment #1.1: Type: text/plain, Size: 1635 bytes --]


For multiple choice you can try:

http://fourier.math.uoc.gr/~mk/much/example/

see:

  [NTG-context] create and grade multiple choice exams with MUCH an  
ConTeXT

have a nice day


Em 27/02/2009, às 10:45, Curious Learn escreveu:

> I was not aware of this cool feature in Context. This could be very  
> useful in
> making multiple choice tests. I have one question. Is there a simple  
> way in
> which one can switch between itemized lists that are random and  
> non-random? For
> example, if I have 40 multiple choice questions, each of which has the  
> following
> form:
>
> Question Text
> \startitemize[random]
> \startitem first item \stopitem
> \startitem second item \stopitem
> \startitem third item \stopitem
> \startitem fourth item \stopitem
> \stopitemize
>
> If I want the PDF file that has the items in the order I entered them  
> in (i.e.,
> not a random permutation); is it possible to do that in a way other  
> than going
> and taking out the "random" from each itemize environment?
>
> Thanks.
>
>
> _______________________________________________________________________ 
> ____________
> If your question is of interest to others as well, please add an entry  
> to the Wiki!
>
> maillist : ntg-context@ntg.nl /  
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> _______________________________________________________________________ 
> ____________
>
>
Um Abraço,

Jorge Magalhães

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For multiple choice you can try:


http://fourier.math.uoc.gr/~mk/much/example/


see:


<bold> [NTG-context] create and grade multiple choice exams with MUCH
an ConTeXT


have a nice day</bold>



Em 27/02/2009, às 10:45, Curious Learn escreveu:


<excerpt>I was not aware of this cool feature in Context. This could
be very useful in

making multiple choice tests. I have one question. Is there a simple
way in

which one can switch between itemized lists that are random and
non-random? For

example, if I have 40 multiple choice questions, each of which has the
following

form:


Question Text

\startitemize[random]

\startitem first item \stopitem

\startitem second item \stopitem

\startitem third item \stopitem

\startitem fourth item \stopitem

\stopitemize


If I want the PDF file that has the items in the order I entered them
in (i.e.,

not a random permutation); is it possible to do that in a way other
than going

and taking out the "random" from each itemize environment?


Thanks.



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___________________________________________________________________________________



</excerpt>Um Abraço,


Jorge Magalhães


[-- Attachment #2: Type: text/plain, Size: 487 bytes --]

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Re: \itemize[random] does not work

[Wolfgang Schuster]

Am 27.02.2009 um 22:22 schrieb Aditya Mahajan:

>>> I've also noticed a strange thing: the first item always is the  
>>> first -
>>> it won't get mixed with the others.
>
> There is a bug somewhere in the initialization of the random number  
> generator. The first random number is always 1. An easy work around  
> is to add \nextrandom somewhere before \starttext and then the first  
> item will be random.


The best would be to add

   \appendtoks\nextrandom\to\everystarttext

to the core.

Wolfgang

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Re: \itemize[random] does not work

[Hans Hagen]

Wolfgang Schuster wrote:
> 
> Am 27.02.2009 um 22:22 schrieb Aditya Mahajan:
> 
>>>> I've also noticed a strange thing: the first item always is the first -
>>>> it won't get mixed with the others.
>>
>> There is a bug somewhere in the initialization of the random number 
>> generator. The first random number is always 1. An easy work around is 
>> to add \nextrandom somewhere before \starttext and then the first item 
>> will be random.
> 
> 
> The best would be to add
> 
>   \appendtoks\nextrandom\to\everystarttext
> 
> to the core.

i'd rather try to figure out why the initialization fails; i noticed it 
a while ago, but couldn't find the reason

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Re: \itemize[random] does not work

[Wolfgang Schuster]

On Sun, Mar 1, 2009 at 7:46 PM, Hans Hagen <pragma@wxs.nl> wrote:

> i'd rather try to figure out why the initialization fails; i noticed it a
> while ago, but couldn't find the reason

Don't know why this happens with the randomizer in thrd-ran.tex but
it's easy to solve it in supp-ran.tex

Line 72 is '\ifx\normaluniformdeviate\undefined' but \normaluniformdeviate
is not defined but \uniformdeviate is defined (I guess \bindprimitive in
syst-ini.tex prefixed the commands with 'normal' in a earlier version).

You should also remove the normal prefix from the \nextrandom redefinition
in supp-ran.tex

Wolfgang
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