Roy Goodman

Last seen: 5 days ago | Active since 2011

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Setting a default colororder
I like the new colororder gem12. I'd like to set it as my default in my startup file. However the following returns an error. Wh...

10 months ago | 1 answer | 0

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answer

Question

Efficiently evaluating ODE event that depends on only some variables
I'm simulating an -body problem in the plane. I want to know when the three particles that are closest to each other are collin...

12 months ago | 1 answer | 0

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answer

Question

Setting default line widths for all plotting functions
MATLAB's default linewidths are all too narrow for my taste. I have a startup.m file with many lines like set(groot,'DefaultLin...

1 year ago | 2 answers | 1

2

answers

Question

MATLAB can relabel graph node table columns but not edge table columns.
It seems that I can rename a column in the Nodes table of a graph but trying to do so for the Edges table returns an error. (Thi...

1 year ago | 1 answer | 0

1

answer

Question

Best practice to distribute a project?
I have a fairly large project which was written as a MATLAB Project (capital P), meaning that there exists a .prj file that I ha...

3 years ago | 0 answers | 0

0

answers

Question

Compiling a fortran mex file on an intel mac
I am attempting to compile a mex file. I have an Intel Mac running Mac Os Big Sur and have intel OneAPI compilers installed incl...

3 years ago | 0 answers | 0

0

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Question

Conditionals in argument blocks
Is it possible to make the default value of one optional variable depend on the value of another optional variable? In particul...

3 years ago | 2 answers | 0

2

answers

Submitted

matdfpp
Draw direction fields and phase planes.

3 years ago | 13 downloads |

Question

How do I call functions with names generated by str2func, varargin, and input argument blocks?
I am building a piece of software which will require the user to write a few short functions of their own. The user will specify...

3 years ago | 1 answer | 0

1

answer

Question

trouble switching/merging branches in git integration
I am using the git integration in a MATLAB Project and am running into an error. I need merge a branch back into the master bra...

3 years ago | 1 answer | 0

1

answer

Question

MATLAB beeps on every keystroke in editor
Sometimes I will open a file in the editor, and every time I push down a key, I get a beep. This makes editing a document conta...

3 years ago | 0 answers | 0

0

answers

Question

running live functions and having section breaks
Before the advent of Live Script, I created a lot of demonstrations using publish and I would always create the demonstrations a...

4 years ago | 1 answer | 1

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answer

Question

Github repository creation failed
I have a MATLAB Project (capital P) that I'm managing using git. I would like to upload it to github. It's my second such proje...

4 years ago | 0 answers | 1

0

answers

Question

Rewriting pplane and dfield
This is not quite a question in the usual MATLAB Answers sense, but I am hoping that someone who looks at MATLAB Answers might b...

4 years ago | 1 answer | 1

1

answer

Answered
What is the Project Icon file?
Answering my own question: I'm using a Mac. Any folder on a Mac that has a custom Icon contains a hidden file called "Icon\r" w...

4 years ago | 0

| accepted

Answered
"Icon" file in GitHub-managed MATLAB Project
I had not been actively editing so I was on the main branch. I just created a branch to experiment with removing this file and a...

4 years ago | 0

| accepted

Question

"Icon" file in GitHub-managed MATLAB Project
I am new to both "Projects" and collaborating via GitHub. In the past few months, I turned an existing project into a Project ...

4 years ago | 1 answer | 0

1

answer

Question

What is the Project Icon file?
I am turning a project (lower case p) into a Project (upper case P). I just noticed a file in the directory called "Icon" alth...

4 years ago | 1 answer | 0

1

answer

Question

How to organize a project?
This is more a general software engineering question than a MATLAB question, but it's about a MATLAB project, so here seems the ...

4 years ago | 1 answer | 0

1

answer

Question

Shortcut to default line colors?
I can't remember how long ago MATLAB switched to the new default line color order. Overall, I much prefer the new colors. I'll n...

4 years ago | 1 answer | 1

1

answer

Question

rotation of graph node labels
I am plotting some graphs using circular layout, for example plot(digraph([1 2 3],[2 3 1]),"layout","circle");axis equal The n...

4 years ago | 2 answers | 0

2

answers

Question

Weird error message on startup
Running Matlab 2020a on a mac with catalina, I get this error message at startup Warning: Name is nonexistent or not a director...

4 years ago | 1 answer | 0

1

answer

Question

add data to an existing object with a method not in @ directory
I have created a class of objects, and have stored the core methods for working with these objects in a directory whose name sta...

6 years ago | 0 answers | 0

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answers

Question

Where is the ellipticf function?
According to this MathWorks website: https://www.mathworks.com/help/symbolic/ellipticf.html Matlab has an incomplete ellip...

7 years ago | 1 answer | 0

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answer

Question

access to default line colors
Is there a way to easily specify a line color from the (relatively) new default line color ordering? What I'd like is to be able...

7 years ago | 2 answers | 0

2

answers

Question

Overloading arithmetic on graphs or digraphs
I am solving some problems in "quantum graphs." Without getting into the detail, I have a directed graph, built as a MATLAB digr...

7 years ago | 2 answers | 0

2

answers

Question

All edges attached to given node in a (di)graph
I have a simple and, I imagine, common question about working with graphs. Is there a built-in way to find all the edges pointin...

8 years ago | 1 answer | 0

1

answer

Solved

Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

9 years ago

Question

Opening saved figures created using plotyy
I created some figures using plate and saved them as .fig files. Now, I'd like to modify the figures slightly, but they don't re...

9 years ago | 1 answer | 0

1

answer

Question

read data from variables with names matching patterns
A student of mine saved a .mat file containing variables named x1, x2, ..., x50, y1, y2, etc. How can I write program that will...

10 years ago | 1 answer | 0

1

answer

Roy Goodman

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