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# David K

Last seen: 12 dagar ago Active since 2015

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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...

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Question

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...

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Solved

Draw a '4' in a zero matrix!

Solved

Draw a '6' in a zero matrix!

Solved

Draw a '9' in a zero matrix!

Solved

Draw a '7' in a zero matrix!

Solved

Draw a '8' in a zero matrix!

Solved

Draw a '3' in a zero matrix!

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Draw a '2' in a zero matrix!

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Draw a '5' in a zero matrix!

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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 =...

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Draw a '1' in a zero matrix!

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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...

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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;...

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Converts numbers into characters
Converts numbers into characters

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Find the max element of the array
Find the max element of the array

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

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Calculate the average value of the elements in the array
Calculate the average value of the elements in the array

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to the 2 all elements
to the 2 all elements

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the average value of the elements
Calculate the average value of the elements in the array

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Double all elements in the array
Duplicate all elements in the array

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calculate the length of matrix
input 1 array, calculate the length

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Draw a '0' in a one matrix!

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...

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Question

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

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Question

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

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Question

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

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Question

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

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Question

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