# David K

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I spend a lot of time in MATLAB, with my focus on signal processing and data analysis.

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Question

How to determine if an axes already has a colorbar?

I would like to determine if an axes already has a colorbar. I have code which plots many objects on the same axes, but I only w...

ungefär 2 månader ago | 1 answer | 0

### 1

answerQuestion

Creating a scatter plot with patch

I am working with code created by someone else long ago that performs a lot of complex custom plotting tasks. I also have my own...

2 månader ago | 1 answer | 0

### 1

answerSolved

Find x rows where the sum of the numbers is the maximum

Find x rows where the sum of the numbers is the maximum. For example: when x is 2 and m is 2 3 5 0 2 3 5 5 6 0 9 4 then y =...

6 månader ago

Solved

Is A the inverse of B?

Given a matrix A and a matrix B, is A the inverse of B? >>A=[2,4;3,5]; >>B=[-2.5,2;1.5,-1]; >>isInverse...

6 månader ago

Solved

Rotate Matrix @180 degree

Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...

6 månader ago

Solved

Square root

Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.

6 månader ago

Solved

Calculate the average value of the elements in the array

Calculate the average value of the elements in the array

6 månader ago

Solved

the average value of the elements

Calculate the average value of the elements in the array

6 månader ago

Question

Scroll to location within uidropdown

I have a uidropdown with a very long list of options. I would like to set it so that when a user clicks on the dropdown it autom...

11 månader ago | 1 answer | 0

### 1

answerQuestion

How do I extract custom data tip info

I have created custom data tips for my plot using the DataTipTemplate functionality. When I add cursors to a plot they display n...

ungefär ett år ago | 1 answer | 0

### 1

answerQuestion

Very slow adding datatips to datetime plots

I have a custom plotting tool that allows me to plot my data in many different formats. I've found that when my time variables a...

ungefär ett år ago | 1 answer | 0

### 1

answerQuestion

Extreme delays when creating parpool in newer releases

I am trying to do some parallel processing and have run into issues when creating the worker pool. When I run the parpool comman...

mer än ett år ago | 0 answers | 0

### 0

answersQuestion

NaN value in data tip causes error

I am using dataTipTextRow to create custom data tips for my plot. I have found that when there is a NaN value in the Value field...

ungefär 2 år ago | 0 answers | 0

### 0

answersQuestion

Unable to change default radio button in button group

I am building an app in appdesigner which contains a Radio Button Group. I recently decided to add a new radio button option to ...

mer än 2 år ago | 1 answer | 0

### 1

answerSolved

The Piggy Bank Problem

Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

mer än 2 år ago