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# Erik

33 total contributions since 2011

Technical Medicine (Medical Sensing & Stimulation)

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Question

Efficient method to detect nonzero value trains up to a certain lenght?
I have data as follows (either numerical or logical, it doesn't matter in this case): [0 1 0 1 1 0 1 1 1 0 1 1 1 1 0] Every 0...

12 meses ago | 2 answers | 0

### 2

How can I start MATLAB?
That's a strange error. Did your MATLAB installation install successfully and completely? Is your Java installation up-to-date? ...

alrededor de 2 años ago | 0

| accepted

Submitted

findduplicates
Find linear indices of duplicate elements in input.

Submitted

dirAll
Find all paths in the specified directory and its subdirectories.

Submitted

Honeycomb
Tools for hexagonal binning (honeycomb plot) and visualisation

Submitted

figures
A function to create multiple figure windows.

What is best practice to determine if input is a figure or axes handle?
Another option I found inside the undocumented axescheck function is the specification of a type to check for when using isgraph...

más de 3 años ago | 3

Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

más de 3 años ago

Solved

Is my wife right?
Regardless of input, output the string 'yes'.

más de 3 años ago

Question

Push to remote repo on GitHub: my account has two-step verification turned on, not authorized error
I've enabled two-factor authentication (aka two-step verification) for my GitHub account. Whenever I login to GitHub, I should b...

más de 3 años ago | 1 answer | 0

### 1

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

más de 3 años ago

Solved

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

más de 3 años ago

Solved

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

más de 3 años ago

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

más de 3 años ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

más de 3 años ago

Solved

Given a and b, return the sum a+b in c.

más de 3 años ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

más de 3 años ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

más de 3 años ago

How to get the mean of ROC curves using Matlab?
I guess the matrix rows are the ROC-curves, each a number of elements in every column (ans a few NaN after the 1). Then you coul...

más de 3 años ago | 0

Question

What is best practice to determine if input is a figure or axes handle?
I've been confused about MATLAB graphics since change to the new graphics system. I do not know how I can check for a variable b...

más de 3 años ago | 3 answers | 1

### 3

How to use medfilt1 on different computers
Using a function from a toolbox you have not installed on a different computer is not allowed. You could implement your own 1-D ...

más de 3 años ago | 0

Question

Where do I find the MATLAB Online terms of access?
I want to review the MATLAB Online terms of access. I accepted them the first time I logged in to matlab.mathworks.com, but now ...

más de 3 años ago | 1 answer | 0

### 1

Is it allowed to publish an extension to a built-in function on File Exchange?
In the meantime I could solve the problem as follows, which is allowed I believe: At the point(s) where I want to insert code...

más de 3 años ago | 0

Question

Is it allowed to publish an extension to a built-in function on File Exchange?
I have a great idea for additional functionality of a built-in function from a MATLAB toolbox. For this extension to work, I'd n...

más de 3 años ago | 4 answers | 0

### 4

Question

Bug? Datetime creation produces both NaT and 1-Jan-1970 values.
When I run the following code in either R2014b or R2016a I get: clear d, d(:,2) = datetime(randi(10,5,3)) d = NaT ...

casi 4 años ago | 1 answer | 0

### 1

Question

Using datetime in R2014a (prior to its introduction in R2014b)
The |datetime| class was added in MATLAB R2014b. However, the version I'm forced to use on a work computer is R2014a, unfortunat...

alrededor de 4 años ago | 1 answer | 0

### 1

Question

Figures don't resize, but axes do (with almost the same commands)
I resize axes to a certain resolution (seconds per centimetre) and I try to resize the figure's size accordingly. The figure won...

más de 4 años ago | 0 answers | 0

### 0

Question

MATLAB doesn't exit, all windows close, but MATLAB.exe persists in Task Manager
Well, the title says it all. Is this a common problem? What could cause and fix this? I'm on Win8x64 and I use R2014b. When I...

casi 5 años ago | 1 answer | 0

### 1

Question

I can't run Activate (Mac OS X 10.10) to reactivate expired MATLAB license
I can't run the license activation application (Activate from MATLAB.app -> show package contents). My computer (Mac OS X 10.10)...

casi 5 años ago | 1 answer | 0