Kevin Holly

MathWorks

Last seen: Today | Active since 2021

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Answered
App designer tab groups insert a fig
Please see that attached app. Also see the example here. Let me know if these answer your questions.

10 hours ago | 0

Answered
How to use the same directory for all functions in app designer?
You could have the app load the directory files into a dropdown box after selecting a particular file as shown in the example at...

11 hours ago | 0

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Remove excess delaunay triangulation
See answer here.

2 days ago | 0

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Refine delaunay triangulation mesh
I was able to increase the density using the subtri() function upload by Kevin Moerman to the File Exchange. ImgClosed = imread...

2 days ago | 0

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Convert table to array and back to table
A = randi([1 10],5,3) T = array2table(A,'VariableNames',{'Feet','Inches','Centimeters'}) Header = T.Properties.VariableNames...

3 days ago | 0

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Answered
Saving data in excel from the plot using Appdesigner
Sushmita, Please see the app attached. Note, you can create a save button and then create a callback that calls the menu's sa...

3 days ago | 0

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Submitted

Rodent-Tracker
Rodent Tracker tracks the movement of a rodent in overhead view videos that have a contrasting background.

3 days ago | 13 downloads |

Answered
Checking if columns of matrix are equal to some array
T=5 data = randi([0 1],8,T) template = [0 0 1 0 0 0 1 0] data(:,4) = [0 0 1 0 0 0 1 0]; for t = 1:T test_column = dat...

3 days ago | 1

Answered
Reading in excel file with multiple sheets into a cell array using readtable
You need to use curly brackets. Please see below. n=5; %no. of excel sheets excel_data=cell(n,1) %initialising the cell array ...

3 days ago | 0

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Answered
app designer does not allow web app share
Do you have MATLAB Compiler install? If you have the license, you can install from the menu: Home->Add-Ons->Get Add-Ons

8 days ago | 0

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Plot data based on selection in list in appdesigner
Roman, Please see the app attached. I believe this should help. Let me know if you have any questions about the app.

9 days ago | 0

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3d object rotation
Keep you axes limits consistent. That should help when viewing. figure erad = 6000; prad = 6000; npanels = 180; hold on; a...

9 days ago | 0

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Answered
Use table row as input for a new table
Are you starting off with vector arrays or tables? Note, below would also work if you used numeric values instead of strings. ...

9 days ago | 1

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Answered
find the point of intersection of one curve with itselfs
x = [2 0 0 2 2 -1]; y = [4 4 0 0 2 2]; points = [x;y]; h=fnplt(cscvn(points)); plot(h(1,:),h(2,:));hold on, plot(points(...

9 days ago | 0

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Answered
Save plotted lines in an matrix
You can save the plot and extract the XData and YData from it's subfields as shown below. [B,L,N,A] = bwboundaries(ImgClosed); ...

10 days ago | 0

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Answered
Is it possible to plot patternCostums in appDesigner?
pattenCustom does not work with uiaxes. Try this workaround below. First create the diagram on an axes within a figure. Then...

12 days ago | 0

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Answered
Outerjoin does not merge the keys
I joined the two tables, I got 2695 rows after eliminating PIBstatsinstitute from the keys. There are too many unique combinatio...

14 days ago | 0

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How to extract specific data from data files?
data = [111 135 134 111 143 176 111 124 187 222 ...

14 days ago | 0

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Identifying a line in multiple plots
I made the app attached with App Designer. You could make a similar app to help you identify the selected lines. You can change ...

15 days ago | 0

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Answered
How to draw a complicated graph
Z=1:100; Y=Z.^2; K=2; figure plot3(zeros(size(Z)),Z,Y,'k') hold on plot3(K*(ones(size(Z))),Z,Y,'r') line([0 K],[Z(1) Z(...

15 days ago | 0

Answered
How can the major axis of a 3d object be determined?
You can figure out the orientation with regionprops3 assuming you have a 3D matrix of the model. Example: sample = zeros(100...

15 days ago | 0

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What is the difference between valuechangedfcn and valuechangingfcn?
Let's say it is a slider. "valuechangedfcn" would occur after you finished dragging the slider and let go on a new value. "value...

17 days ago | 1

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Answered
I want to convert a single column of data from a .txt file as shown then operate on it by the script shown but I get error "left is 1x1 right is 1x243003"
I imported the data with the function attached and did not recieve an error. Fs = 100; t0 = 1/Fs; omega = importdata('testi...

17 days ago | 0

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Answered
How to plot an square ?
If it is 4 intersecting square waves, you could do this: x = -10:0.001:10; pi plot(x,(pi/2)*square(x)) hold on plot(x,-(p...

22 days ago | 0

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How to plot a best fit curve to my data points?
If you have the Curve Fitting Toolbox, you can use the Curve Fitting app after you import your data into the workspace. Within t...

22 days ago | 0

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App Designer | hold on does not work as expected
I believe you need to specify the axes of your hold on. Please let me know if this works. hold(app.fullaxes,'on'); colormap(ap...

1 month ago | 0

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Answered
Point to Images in App Folder
I would suggest packaging your app before sharing it with others. See more information here. Alternatively, you could add the...

2 months ago | 0

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Answered
How to clear a plot in app designer to plot it again with new results?
It seems like you are creating new uiaxes on top of the previous ones. You can go through your code to make sure you aren't crea...

2 months ago | 0

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Answered
Creating and managing subplots App Designer Matlab
1. Do you know what line in the code generates this error? 2. If you do not want the message, "Current plot held" to be displ...

2 months ago | 0

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Answered
I want to take an array in matlab appdesigner i.e. A=[5 10 15 20] from user and then use for further calculation. how can i do that?
Please see app attached. You can use a text edit field to accept a numeric array as a string. Then you can convert it to a numer...

2 months ago | 0

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Kevin Holly

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