File Exchange

## Pplane

version 2.0 (49.2 KB) by
An updated version of Pplane that works on Matlab R2018b

Updated 21 Nov 2018

An updated version of Pplane that works on Matlab R2018b.
Copyright to John C Polking, Rice University, 2003 for original version.
Updated by Hugh Harvey and George Williams, University of Bristol, 2016.

### Cite As

Hugh Harvey (2020). Pplane (https://www.mathworks.com/matlabcentral/fileexchange/61636-pplane), MATLAB Central File Exchange. Retrieved .

leon zhou

Jose Mejia

César Suárez

Muchas gracias, me ha ayudado mucho

Ismail Amara

Error using feval
Undefined function or variable 'pptp3493'.
Error in pplane8 (line 3171)
Ww = feval(dfcn,0,[Xx';Yy']);
Error in pplane8 (line 2736)
pplane8('dirfield',ppdisp);
Error while evaluating UIControl Callback.
=================================
I have got that error when I executed the pplane8.m file.
I am using R2018b version.
How to solve that error?

mmd

Daria Galkina

Thank you so much! This program is really helpful!

apla

Excuse me, how can I use it on R2018a?

@Hil Meijer, IT WORKED, thank you very much!!

faizah alanazi

Thank you.
i would like to ask about if i can used this code for system grater than 2. I have three nonlinear differential equation
x^. = w_1−2 K´sin(x)+K sin(y)
y^. = w_2+K sin(x)−2 K´sin(y)+K sin(z)
z^. = w_3+K sin(y)−2 K´sin(z)
where w's are constant and K constant also.
so how can i used this application to study the stability and plot the phase plane by using Pplane.
regard

Hil Meijer

For matlab2020a; Replace line 72 if isempty(findstr(tmpdir,p)) by "if ~contains(tmpdir,p)"

How can I make it work for R2020a? Thank you in advance

Gabriel Gleizer

Ann Loya

I got an error as follows in r2017a:
Does anyone know how to fix it?

Raúl Ibáñez Couoh

Genial

Yang Bin

Thanks for your code. It works! But when I deploy it into exe app, there are some errors. Could you please help me find out why and how to correct them?

Errors in black cammand window ( two paragraphs):
Error in <a href="matlab:helpUtils.errorDocCallback<'pplane', 'c:\Users\***\AppData\Local\Temp\***\mcrCache8.1\pplane1\pplane\pplane.m',26>" style="font-weight:bold">pplane</a> <<a href="matlab: opentoline<'c:\Users\***\AppData\Local\Temp\***\mcrCache8.1\pplane1\pplane\pplane.m',26,0>"line 26</a>>

Output argument "output" <and maybe others> not assigned during call to "c:\Users\***\AppData\Local\Temp\***\mcrCache8.1\pplane1\pplane\pplane.m".
unable to print provided exception.

Matlab: 2013a
Complier: Microsoft Visual C++ 2008 SP1

Nikolai Fast

Andrew Lake

Works as intended in 2019a, although on first run it tells me that windows are open but invisible. Upon instructing it to close the windows, and running again, the UI appears like it should.

Erik Wu

My 2018b can not run this code. There are always a window come out and say " There are some pplane8 figures open although they may be invisible. What do you want to do?" Is there anyone know what should i do?

Pipixia

'pos',1);

my 2018b can not run this code

Lisbeth Toy

Margo Levine

Is there a version that works with R2019a?

Huy Doan

everyone opens pplane8.m

saverio albergo

Sepehr Seify

Yongtai Zhang

Excuse me, how can I use it on R2018b?

Gus Breese

Super work, I must reiterate my comment from 4th of May 2017... Are you guys geniuses????

George Williams

Thank you. Working fine with R2018b

Aleksei Tepljakov

Here's a version that's working in R2018b: https://a-lab.ee/share/pplane8/pplane8.zip
Everything seems to be working. The author can update the submission with this.

Jay

biomedo

It doesn't work for MATLAB R2018a.

Rodrigo Mourey Ancona

This code does not work for MATLAB R2018a, anyone know how to get it to wrok?

Teodo

Not working with MATLAB 2018a.

Carolina Martín

Khalid

Dan Schult

I was able to adapt the plan.m file available on Prof Polking's webpage to work with Matlab 2017b. I haven't done extensive testing, but it seems to do all the features/menu items with the default ODE system.

I did the following global replacements to pplane8.m calling the file pplane2017b.m
pplane8 -> pplane2017b
'numb','off' -> remove all of these Key/Value pairs. Sometimes they are wrapped around a line end. So search for 'numb' and remove the 'numb','off' pair from each occurrence.
'call' -> 'CallBack'
'number' -> 'NumberTile'

if notice -> if ishghandle(notice)
if gstop -> if ishghandle(gstop)
if dud.notice & dud.noticeflag -> if ishghandle(dud.notice) & ishghandle(dud.noticeflag)

Graham W Griffiths

Has anyone been able to run pplane and dfield functions on Matlab 2017? If so, what modifications were made?

Jan

Adding the tempdir folder to Matlab's path is a dangerous idea: You might shadow built-in functions, when TEMP contains M-files. The resulting errors are very hard to debug.

The code uses strings as callbacks, which is outdated for over 15 years now. The bunch of |eval| commands are not secure and reliable also.

The code contains useful comments and a standard help section. The included integrators are clean and efficient, and the source of the parameters and algorithm is mentioned.

The code fails due to the lazy usage of "call" instead of "Callback", and "user" instead of "UserData". What a pity for such a powerful tool.

Amy Diekmann

I am trying to run this program with MATLAB 2017, and I get the following errors:
There is no call property on the Menu class.

Error in pplane8 (line 907)

Error in pplane8 (line 52)
eval(startstr);return

Error in run (line 91)
evalin('caller', strcat(script, ';'));

Anna Kalogirou

Opening a saved figure.fig generated with pplane8 returns an error and prevents the figure from closing. Error below. Any suggestions?

Struct contents reference from a non-struct array object.
Error in pplane8 (line 6230)
if sud.remtd
Error in pplane8 (line 6258)
pplane8('quit');
Error while evaluating Figure CloseRequestFcn.

Gerardo García

Gerardo García

I found out the cause of my problem: I was naming the pplan8.m script as pplane81.m to avoid overwriting the old version. Somehow Matlab 2016b didn't like this and it was giving a misleading error message. Changing the name to pplane8.m solved this issue. As this script defines a function called pplane8, it seems that the m file MUST be equally named.
I modified both pplane8.m and a compatible dfield8.m I found in anoter place to dfield9.m and pplane9.m to avoid this naming conflict with the previous version. I also fixed in this version of pplane two other unspotted errors preventing the linearization window to display and the different related graph windows like 3D, composite, etc.
I uploaded these modified versions of dfield and pplane. I hope that they will be useful to all users of these very important scripts for teachig and doing research on Differential Equations.

Gerardo García

Same problem with Matlab R2016b: "Error while evaluating UIControl Callback." is what shows up in the command window after clicking "Proceed" :-(

Gonzalo Menayo

Does any body know, how to make a 3D Phase space with pplane`?

scorpio kuzb

Do you know how to get out of data about phase portrait?Thank you

Landon Bevier

Does not work on R2017a... "Error while evaluating UIControl Callback." is what shows up in the command window after clicking "Proceed". I am very new to matlab and if I had any idea where to start looking I would. Would anyone be willing to help?

Manuel Roesler

Perfect, runs nicely!

Gus Breese

Incredible!!!!!!! Works so well!!! Are you guys geniuses????

Rongming Chen

ben shen

Garrett Miller

George Williams