from:"Jacob Bond"

[LON-CAPA-users] (no subject)

2015-12-04 Thread Jacob Bond

Search 'Thanks for the great response' in LON-CAPA-users
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Re: [LON-CAPA-users] background image in geogebra

2016-05-05 Thread Jacob Bond


Carl,

I just realized that you might not have been talking about a "custom" applet 
(http://www.lon-capa.org/geogebraTutorial.html; though I had to modify the 
procedure a little to get it to work).  You can insert an image into a "custom" 
applet.

Jacob

From: lon-capa-users-boun...@mail.lon-capa.org 
 on behalf of Carl Lira 

Sent: Thursday, May 5, 2016 7:39:44 PM
To: 'Discussion list for LON-CAPA users'
Subject: [LON-CAPA-users] background image in geogebra

Is it possible to insert a background image in goegebra loncapa problems? I
can think of some problems where I would like students to draw on top a
background diagram. The background diagrams are complicated enough that it
is currently impractical to generate them with a simple function (phase
diagrams).

Thanks,

Carl Lira

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Re: [LON-CAPA-users] background image in geogebra

2016-05-05 Thread Jacob Bond

Carl,

I wanted to mention some things that I wish I'd known (and didn't pop up on 
Google right away for me):

Since the videos were made, GeoGebra removed the option to export as a webpage. 
 This option is still in the menu, but it will just make you upload it to 
GeoGebraTube.  Instead, I uploaded the GeoGebra worksheet to GeoGebraTube 
(tube.geogebra.org) and told LON-CAPA where to find the worksheet.  Once the 
worksheet is uploaded to GeoGebraTube, to embed the applet in LON-CAPA, I used 
the second method on this page:

https://www.geogebra.org/manual/en/Reference:Applet_Embedding

I also found the source for this page helpful:

http://archive.geogebra.org/source/program/applet/geogebra_applet_javascript_test.htm

And these were very helpful:

http://www.geogebra.org/manual/en/Reference:JavaScript
http://www.geogebra.org/manual/en/Reference:Applet_Parameters

Good luck,
Jacob

From: lon-capa-users-boun...@mail.lon-capa.org 
<lon-capa-users-boun...@mail.lon-capa.org> on behalf of Carl Lira 
<l...@egr.msu.edu>
Sent: Thursday, May 5, 2016 9:59:56 PM
To: 'Discussion list for LON-CAPA users'
Subject: Re: [LON-CAPA-users] background image in geogebra

Jacob,

Thank you for the links! I will study these.

Carl

-Original Message-
From: lon-capa-users-boun...@mail.lon-capa.org
[mailto:lon-capa-users-boun...@mail.lon-capa.org] On Behalf Of Jacob Bond
Sent: Thursday, May 05, 2016 9:27 PM
To: Discussion list for LON-CAPA users <lon-capa-users@mail.lon-capa.org>
Subject: Re: [LON-CAPA-users] background image in geogebra


Carl,

I just realized that you might not have been talking about a "custom" applet
(http://www.lon-capa.org/geogebraTutorial.html; though I had to modify the
procedure a little to get it to work).  You can insert an image into a
"custom" applet.

Jacob

From: lon-capa-users-boun...@mail.lon-capa.org
<lon-capa-users-boun...@mail.lon-capa.org> on behalf of Carl Lira
<l...@egr.msu.edu>
Sent: Thursday, May 5, 2016 7:39:44 PM
To: 'Discussion list for LON-CAPA users'
Subject: [LON-CAPA-users] background image in geogebra

Is it possible to insert a background image in goegebra loncapa problems? I
can think of some problems where I would like students to draw on top a
background diagram. The background diagrams are complicated enough that it
is currently impractical to generate them with a simple function (phase
diagrams).

Thanks,

Carl Lira

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Re: [LON-CAPA-users] background image in geogebra

2016-05-06 Thread Jacob Bond

Carl,

Happy to help.  Another issue with the current setup (I don't know if this was 
an issue before) is that the problems are rather slow to load.  I don't know 
how much it affects students, but debugging the problems becomes a pain.  Also, 
after you change the source for each problem, it won't reload immediately, you 
have to click either reset submissions, new randomization, or leave the problem 
and come back in.

It could be done, though I don't know that my solution is very elegant.  Keep 
in mind that all of my knowledge on this topic is from googling and 
experimenting.

I have found that it works best to just have the applet output all of its data 
to LON-CAPA so that LON-CAPA knows how to redraw the applet after submission.  
This is somewhat complicated by the fact that one doesn't technically know what 
GeoGebra will name things.  However, they generally name them alphabetically, 
points are a,b,c,... and lines are A,B,C,...; it might be useful to use this 
for your problem to make it easier to keep the parts separate.

Anyhow, I think you could start by having two customresponses and setting your 
update listener to have both (assuming  and id="12")

document.lonhomework.elements["HWVAL_11"].value = array_of_data
document.lonhomework.elements["HWVAL_12"].value = array_of_data

where array_of_data is basically a dump of all the coordinates of points, 
whether lines were drawn, etc. delimited in someway (commas, semicolons, etc.). 
 Note that LON-CAPA will receive this a string.  Then have the first 
customresponse algorithm operate on the data corresponding to the first 3 
points and if there was a line (calculate slope, etc.) and the second 
customresponse operate on the rest.  Maybe something like
x1,y1;x2,y2;x3,y3;is_line_1_drawn:x4,y4;x5,y5;is_line_2_drawn
and have the algorithms start by splitting the string, starting with colons.

Again, this would be rather tedious, and there may be a much better way.

Jacob


From: lon-capa-users-boun...@mail.lon-capa.org 
<lon-capa-users-boun...@mail.lon-capa.org> on behalf of Carl Lira 
<l...@egr.msu.edu>
Sent: Thursday, May 5, 2016 11:14:36 PM
To: 'Discussion list for LON-CAPA users'
Subject: Re: [LON-CAPA-users] background image in geogebra

Thank you. Until your help I was unaware of the option to embed custom
problems in loncapa. Bummer that they removed the option to export to html.
I don't like assignments on one server that are dependent on another server
working.

A follow up question. Your example shows a single submission. Can multiple
parts be constructed where students complete one part of a graphical
construction and then move on to a second part that they add to the graph?
How would you suggest I approach that type of multiple part problem? To be
specific, I would like to guide students to first find a particular point
and then draw a line through that point and then add a second line with a
different slope through the same point, so they end up with a distorted X,
where the slope and endpoints of each leg are important.

Carl

-Original Message-
From: lon-capa-users-boun...@mail.lon-capa.org
[mailto:lon-capa-users-boun...@mail.lon-capa.org] On Behalf Of Jacob Bond
Sent: Thursday, May 05, 2016 10:45 PM
To: Discussion list for LON-CAPA users <lon-capa-users@mail.lon-capa.org>
Subject: Re: [LON-CAPA-users] background image in geogebra

Carl,

I wanted to mention some things that I wish I'd known (and didn't pop up on
Google right away for me):

Since the videos were made, GeoGebra removed the option to export as a
webpage.  This option is still in the menu, but it will just make you upload
it to GeoGebraTube.  Instead, I uploaded the GeoGebra worksheet to
GeoGebraTube (tube.geogebra.org) and told LON-CAPA where to find the
worksheet.  Once the worksheet is uploaded to GeoGebraTube, to embed the
applet in LON-CAPA, I used the second method on this page:

https://www.geogebra.org/manual/en/Reference:Applet_Embedding

I also found the source for this page helpful:

http://archive.geogebra.org/source/program/applet/geogebra_applet_javascript
_test.htm

And these were very helpful:

http://www.geogebra.org/manual/en/Reference:JavaScript
http://www.geogebra.org/manual/en/Reference:Applet_Parameters

Good luck,
Jacob

From: lon-capa-users-boun...@mail.lon-capa.org
<lon-capa-users-boun...@mail.lon-capa.org> on behalf of Carl Lira
<l...@egr.msu.edu>
Sent: Thursday, May 5, 2016 9:59:56 PM
To: 'Discussion list for LON-CAPA users'
Subject: Re: [LON-CAPA-users] background image in geogebra

Jacob,

Thank you for the links! I will study these.

Carl

-Original Message-
From: lon-capa-users-boun...@mail.lon-capa.org
[mailto:lon-capa-users-boun...@mail.lon-capa.org] On Behalf Of Jacob Bond
Sent: Thursday, May 05, 2016 9:27 PM
To: Discussion list for LON-CAPA users <lon-capa-users@mail.lon-capa.

Re: [LON-CAPA-users] background image in geogebra

2016-05-06 Thread Jacob Bond

Carl,

I think this is public, let me know if it isn't and I can put it somewhere else:

/priv/purdue/purdue_math/math15300/Graphs_Lines/Lines/Problems/Graphs_Of_Lines/graph_from_chart.problem

This is one of the problems I recently made and has some of the things that 
might be useful for your problem.

Jacob


From: lon-capa-users-boun...@mail.lon-capa.org 
<lon-capa-users-boun...@mail.lon-capa.org> on behalf of Carl Lira 
<l...@egr.msu.edu>
Sent: Thursday, May 5, 2016 11:14:36 PM
To: 'Discussion list for LON-CAPA users'
Subject: Re: [LON-CAPA-users] background image in geogebra

Thank you. Until your help I was unaware of the option to embed custom
problems in loncapa. Bummer that they removed the option to export to html.
I don't like assignments on one server that are dependent on another server
working.

A follow up question. Your example shows a single submission. Can multiple
parts be constructed where students complete one part of a graphical
construction and then move on to a second part that they add to the graph?
How would you suggest I approach that type of multiple part problem? To be
specific, I would like to guide students to first find a particular point
and then draw a line through that point and then add a second line with a
different slope through the same point, so they end up with a distorted X,
where the slope and endpoints of each leg are important.

Carl

-Original Message-
From: lon-capa-users-boun...@mail.lon-capa.org
[mailto:lon-capa-users-boun...@mail.lon-capa.org] On Behalf Of Jacob Bond
Sent: Thursday, May 05, 2016 10:45 PM
To: Discussion list for LON-CAPA users <lon-capa-users@mail.lon-capa.org>
Subject: Re: [LON-CAPA-users] background image in geogebra

Carl,

I wanted to mention some things that I wish I'd known (and didn't pop up on
Google right away for me):

Since the videos were made, GeoGebra removed the option to export as a
webpage.  This option is still in the menu, but it will just make you upload
it to GeoGebraTube.  Instead, I uploaded the GeoGebra worksheet to
GeoGebraTube (tube.geogebra.org) and told LON-CAPA where to find the
worksheet.  Once the worksheet is uploaded to GeoGebraTube, to embed the
applet in LON-CAPA, I used the second method on this page:

https://www.geogebra.org/manual/en/Reference:Applet_Embedding

I also found the source for this page helpful:

http://archive.geogebra.org/source/program/applet/geogebra_applet_javascript
_test.htm

And these were very helpful:

http://www.geogebra.org/manual/en/Reference:JavaScript
http://www.geogebra.org/manual/en/Reference:Applet_Parameters

Good luck,
Jacob

From: lon-capa-users-boun...@mail.lon-capa.org
<lon-capa-users-boun...@mail.lon-capa.org> on behalf of Carl Lira
<l...@egr.msu.edu>
Sent: Thursday, May 5, 2016 9:59:56 PM
To: 'Discussion list for LON-CAPA users'
Subject: Re: [LON-CAPA-users] background image in geogebra

Jacob,

Thank you for the links! I will study these.

Carl

-Original Message-
From: lon-capa-users-boun...@mail.lon-capa.org
[mailto:lon-capa-users-boun...@mail.lon-capa.org] On Behalf Of Jacob Bond
Sent: Thursday, May 05, 2016 9:27 PM
To: Discussion list for LON-CAPA users <lon-capa-users@mail.lon-capa.org>
Subject: Re: [LON-CAPA-users] background image in geogebra


Carl,

I just realized that you might not have been talking about a "custom" applet
(http://www.lon-capa.org/geogebraTutorial.html; though I had to modify the
procedure a little to get it to work).  You can insert an image into a
"custom" applet.

Jacob

From: lon-capa-users-boun...@mail.lon-capa.org
<lon-capa-users-boun...@mail.lon-capa.org> on behalf of Carl Lira
<l...@egr.msu.edu>
Sent: Thursday, May 5, 2016 7:39:44 PM
To: 'Discussion list for LON-CAPA users'
Subject: [LON-CAPA-users] background image in geogebra

Is it possible to insert a background image in goegebra loncapa problems? I
can think of some problems where I would like students to draw on top a
background diagram. The background diagrams are complicated enough that it
is currently impractical to generate them with a simple function (phase
diagrams).

Thanks,

Carl Lira

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[LON-CAPA-users] Lenient grading parameter

2017-01-08 Thread Jacob Bond

Hi,


What effect does the lenient parameter achieve?  Is it possible to have a 
partial credit question without the lenient parameter or is the lenient 
parameter part of what makes partial credit work?


Thank you,

Jacob Bond
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[LON-CAPA-users] Formula Previewer in a CustomResponse

2017-10-16 Thread Jacob Bond

Hi,


Is there any way to use the math previewer from the formularesponse problems in 
a customresponse?  Perhaps even setting it up manually with JavaScript?  If 
not, is there a way to call the parsing engine that it uses?


Thank you,

Jacob
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Re: [LON-CAPA-users] Custom Response Partial Credit

2018-05-18 Thread Jacob Bond

Hi Gene,


It looks like


stored_data('tries', ID)


should get you what you want.


Best,

Jacob


From: LON-CAPA-users <lon-capa-users-boun...@mail.lon-capa.org> on behalf of 
Harding, Gene L <glhar...@purdue.edu>
Sent: Friday, May 18, 2018 10:27:33 PM
To: Discussion list for LON-CAPA users
Subject: Re: [LON-CAPA-users] Custom Response Partial Credit


Hi Jacob,



Thank you. I have managed to get it to respond correctly (red incorrect of 
total_score==0, tan partial credit if 0<total_score<1, and green correct if 
total_score==1). I have run quite a few tests and it seems to work fine with 
only this statement:

return ('ASSIGNED_SCORE',$total_score);



I am still having one problem. There is a conditional block that shows a 
gnuplot of the correct answer if it is wrong and maxtries has been met. Before 
I converted to the customresponse the block worked fine, but now the 
_status function returns 1 no matter what, whether wrong, correct, or 
partially correct. Does that function not work with customresponse? If not, is 
there a LON-CAPA parameter for number of tries used? If so, I could compare 
that parameter to maxtries and do the same thing.



Best regards,



Gene L. Harding, PE

Associate Professor of ECET

574-520-4190



From: LON-CAPA-users <lon-capa-users-boun...@mail.lon-capa.org> On Behalf Of 
Jacob Bond
Sent: Friday, May 18, 2018 7:45 PM
To: Discussion list for LON-CAPA users <lon-capa-users@mail.lon-capa.org>
Subject: Re: [LON-CAPA-users] Custom Response Partial Credit



Hi Gene,



You're right that the last return statement shouldn't be there.  Also, there is 
a subtlety about returning 'INCORRECT' in a partial credit problem.  If a 
student submits an answer that gets 1/2 credit, then changes it to an answer 
that gets 0 credit, returning 'INCORRECT' will leave the student with 1/2 
credit.  Perhaps this is what you want, but if not,



if ($total_score == 1) {return 'EXACT_ANS';}

else {return ('ASSIGNED_SCORE', $total_score);}



will suffice (if you know $total_score is between 0 and 1, inclusive).  (Also, 
it's possible that you can forget about the if statement entirely, in case 
LON-CAPA knows that ('ASSIGNED_SCORE', 1) is the same as 'EXACT_ANS', but I've 
never bothered testing this.)



As for the real issue, it's tough to say what might be going wrong without 
seeing the rest of the code, but you might try computing $total_score locally 
in the answer block and see if that fixes anything.  If you want to check what 
credit the student has received, this will set $partial_credit to what credit 
the student has received, or 0 if the student hasn't attempted the problem yet 
(ID should be replaced by the part ID of the problem part):



$partial_credit = _data('awarded', ID) ? _data('awarded', ID) : 
0.0;



Best,

Jacob



From: LON-CAPA-users 
<lon-capa-users-boun...@mail.lon-capa.org<mailto:lon-capa-users-boun...@mail.lon-capa.org>>
 on behalf of Harding, Gene L <glhar...@purdue.edu<mailto:glhar...@purdue.edu>>
Sent: Friday, May 18, 2018 5:54:22 PM
To: Discussion list for LON-CAPA users
Subject: [LON-CAPA-users] Custom Response Partial Credit



Hi,



I rewrote the problem I have been working on so that it is now a custom 
response, but am having trouble getting it to properly grade the problem 
submission. This is the code for grading inside the answer block:

 if ($total_score == 1) { return 'EXACT_ANS'; }

   elsif ($total_score > 0) { return ('ASSIGNED_SCORE',$total_score); }

   else  { return 'INCORRECT'; }

 return ('ASSIGNED_SCORE',$total_score);



I have tried it with and without the second return statement, but either way 
the Correct/Partially Correct/Incorrect grading seems almost random. 
$total_score is computed in a perl script higher up in the program, and I am 
outputting it to verify that it is being computed correctly. I also have a 
retrypartial parameter at the top of the program because I want the students to 
be able to take three tries at it on the practice version:





Can anyone see what I am doing wrong?



Thanks for any help/advice you can provide.



Best regards,



Gene L. Harding, PE

Associate Professor of ECET

574-520-4190


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Re: [LON-CAPA-users] Custom Response Partial Credit

2018-05-18 Thread Jacob Bond

Hi Gene,


You're right that the last return statement shouldn't be there.  Also, there is 
a subtlety about returning 'INCORRECT' in a partial credit problem.  If a 
student submits an answer that gets 1/2 credit, then changes it to an answer 
that gets 0 credit, returning 'INCORRECT' will leave the student with 1/2 
credit.  Perhaps this is what you want, but if not,


if ($total_score == 1) {return 'EXACT_ANS';}

else {return ('ASSIGNED_SCORE', $total_score);}


will suffice (if you know $total_score is between 0 and 1, inclusive).  (Also, 
it's possible that you can forget about the if statement entirely, in case 
LON-CAPA knows that ('ASSIGNED_SCORE', 1) is the same as 'EXACT_ANS', but I've 
never bothered testing this.)


As for the real issue, it's tough to say what might be going wrong without 
seeing the rest of the code, but you might try computing $total_score locally 
in the answer block and see if that fixes anything.  If you want to check what 
credit the student has received, this will set $partial_credit to what credit 
the student has received, or 0 if the student hasn't attempted the problem yet 
(ID should be replaced by the part ID of the problem part):


$partial_credit = _data('awarded', ID) ? _data('awarded', ID) : 
0.0;


Best,

Jacob


From: LON-CAPA-users  on behalf of 
Harding, Gene L 
Sent: Friday, May 18, 2018 5:54:22 PM
To: Discussion list for LON-CAPA users
Subject: [LON-CAPA-users] Custom Response Partial Credit


Hi,



I rewrote the problem I have been working on so that it is now a custom 
response, but am having trouble getting it to properly grade the problem 
submission. This is the code for grading inside the answer block:

 if ($total_score == 1) { return 'EXACT_ANS'; }

   elsif ($total_score > 0) { return ('ASSIGNED_SCORE',$total_score); }

   else  { return 'INCORRECT'; }

 return ('ASSIGNED_SCORE',$total_score);



I have tried it with and without the second return statement, but either way 
the Correct/Partially Correct/Incorrect grading seems almost random. 
$total_score is computed in a perl script higher up in the program, and I am 
outputting it to verify that it is being computed correctly. I also have a 
retrypartial parameter at the top of the program because I want the students to 
be able to take three tries at it on the practice version:





Can anyone see what I am doing wrong?



Thanks for any help/advice you can provide.



Best regards,



Gene L. Harding, PE

Associate Professor of ECET

574-520-4190


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[LON-CAPA-users] {Disarmed} Re: {Disarmed} RE: Matrix Operations

2018-02-13 Thread Jacob Bond

Hi all,


Given an array @mat of matrix entries, this will build the Maxima syntax for 
the $rows x $cols matrix with entries @mat:


my $maxima_mat = 'matrix(';
my @mat_copy = @mat;
for my $i (0..$rows-1) {
my @row = splice(@mat_copy, 0, $cols);
$maxima_mat .= '['.join(',', @row).']';
if ($i != $rows-1) {$maxima_mat .= ',';}
}
$maxima_mat .= ')';


Then you can invert it and break it back into an array like this:


my $inv = cas('maxima', "list_matrix_entries(invert($maxima_mat));");
$inv =~ s/\[|\]//g; #remove the leading and trailing []
my @mat_inv = split(',', $inv);


I suppose it's not the prettiest, but it's certainly shorter than Perl 
functions for all of the matrix operations.  You could even wrap the code into 
Perl functions matrix_to_maxima and matrix_from_maxima.  You could also write 
similar functions if you are using a Perl "matrix" 
(https://perlmaven.com/multi-dimensional-arrays-in-perl) instead of a flat 
array.


Best,

Jacob


From: lon-capa-users-boun...@mail.lon-capa.org 
 on behalf of Liu, Yuk Tung 

Sent: Tuesday, February 13, 2018 12:08:23 PM
To: Discussion list for LON-CAPA users
Subject: [LON-CAPA-users] {Disarmed} RE: Matrix Operations


Hi all,

Lon Capa supports both Maxima and R. They can be used to do matrix operations. 
I can't find examples involving matrix, but you can go to  
https://loncapa.msu.edu/adm/help/Creating_Math_Response_Problems.hlp and 
http://www.lon-capa.org/documentation.html to see examples of using Maxima and 
R.

A couple years ago, I wanted to create problems involving regressions. I used R 
to do that, but it only worked if the data size was not too big. So I wrote my 
own perl functions to perform regressions. Regressions involve matrix 
inversion, which I used Cholesky decomposition since the matrix I worked with 
is symmetric and positive-definite.

Yuk Tung Liu
E-Learning Specialist
Department of Statistics
University of Illinois



From: lon-capa-users-boun...@mail.lon-capa.org 
[lon-capa-users-boun...@mail.lon-capa.org] on behalf of Carl Lira 
[l...@egr.msu.edu]
Sent: Tuesday, February 13, 2018 8:55 AM
To: 'Discussion list for LON-CAPA users'
Subject: Re: [LON-CAPA-users] Matrix Operations


Hi Gene,



I would take advantage of this also. I see some matrix operations available, 
but I don’t know if the module is installed.



MailScanner has detected definite fraud in the website at 
"urldefense.proofpoint.com". Do not trust this website: 
http://search.cpan.org/~ulpfr/Math-Matrix-0.8/Matrix.pm



Carl Lira

Associate Professor
Department of Chemical Engineering and Materials Science
2100 Engineering Building
428 S. Shaw Lane
Michigan State University
East Lansing, MI 48824-1226
Phone: (517) 355-9731
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From: lon-capa-users-boun...@mail.lon-capa.org 
[mailto:lon-capa-users-boun...@mail.lon-capa.org] On Behalf Of Harding, Gene L
Sent: Saturday, February 10, 2018 9:56 PM
To: Discussion list for LON-CAPA users 
Subject: [LON-CAPA-users] Matrix Operations



Hi,



Does LON-CAPA have any provision for doing matrix operations (e.g., 
multiplication, inverse calculation or equivalent of the MATLAB “\” operator)?



Best regards,



Gene L. Harding, PE

Associate Professor of ECET

574-520-4190
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