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Kevin Holly

MathWorks

Last seen: Today Active since 2021

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Find the minimum of the column-maximums of a matrix
Given a matrix A, find the maximum value of each column, then return the smallest of those maximum values (ie return the minimum...

1 día ago

Solved


MATLAB Basic: rounding II
Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9

1 día ago

Solved


MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

1 día ago

Answered
Is it possible to use MatLab to make a interactive visualization?
Serhat, Please see the app and the Live Script attached. Let me know if that is what you were looking for. If you are look...

3 días ago | 1

| accepted

Answered
I would like to plot few values of a vector based on threshold setting from another vector.
x=[1 2 3 4 5 6 7 8 9 10]; y=[1 2 3 4 5 6 7 8 9 10]; x(y>3 & y<5) y(y>3 & y<5) figure plot(x(y>3 & y<5),y(y>3 & y<5),'r') f...

3 días ago | 0

Answered
ROI in video using the first frame
Read video and have user define Circle ROI: v = VideoReader('xylophone.mp4'); frame = readFrame(v); imshow(frame) c = drawci...

3 días ago | 3

| accepted

Answered
if column 1 is nan, make corresponding number in column2 nan
Period = [1:1:100]'; F = [201:1:300]'; A=[Period F]; % a random matrix Data = A; percent_miss = 0.1; nTime = length(Period)...

6 días ago | 0

Answered
Looking to identify a football from an image
RGB = imread('YourImage.png'); % Convert RGB image to lab space I = rgb2lab(RGB); % Apply thresholds BW = (I(:,:,1) >= 1...

6 días ago | 1

Answered
Height of circular shape
You could use regionprops to find the major axis length. Or did you need the length of the object in the y-direction? What do yo...

6 días ago | 0

| accepted

Answered
How can I calculate a formula h(t)=4.0+6.0te^-0.5t-4.0e^-0.25cos(0.75pi.t)?
You need to make sure all terms that are multiplied use *. Also replace e with 10^ assuming the e is exponent notation. t = 1:1...

6 días ago | 0

| accepted

Answered
History of opened m-files
try open(fullfile(prefdir, 'matlab.prf'))

6 días ago | 0

Answered
Customized Markers Edge and Face Colours of a scatter plot SEPARATELY
load hospital hospital x = hospital.Age; y = hospital.Weight; g = {hospital.Sex,hospital.Smoker}; h=gscatter(x,y,g,'gbmc','...

6 días ago | 0

Answered
how to remove the tiny white pixels around the rectangles
Img = imread('originalImage.png'); imshow(Img) You can also filter based on area of objects Img = bwareafilt(imbinarize(Img),...

6 días ago | 0

| accepted

Answered
3 double images stored in a matrix
m1 = rand(256); m2 = rand(256); m3 = rand(256); size(m1) size(m1(:)) M(:,1) = m1(:); M(:,2) = m2(:); M(:,3) = m3(:); ...

6 días ago | 1

Answered
How to implement tic, toc and pause in audioPlugins?
If you are trying to create a UI, you could create an app with App Designer as shown attached. Let me know if this addresses you...

6 días ago | 0

Answered
Append data to 3rd dimension in loop
Assuming you have 68 files that are distinguished based on the year and the above is only looking at 33 of the files/years. 3D ...

7 días ago | 0

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Answered
I need help to execute a triple integral
Your value for xmax needs to be a floating-point array. syms s r m; fun = @(s,m,r)(r.*exp(-(s.^2/2+1.727*(m-5))))./(sqrt(r.^2-...

7 días ago | 0

Answered
Read/write georeferenced image
Can you try this below? [A,R] = readgeoraster('input_image.tif'); O = A*2; %any operation you like info = geotiffinfo('input_...

8 días ago | 0

| accepted

Answered
How do you remove non-integer values from a colorbar?
Let's say this is an image with a colorbar with non-integer values: Img = randi(255,25); imagesc(Img) h=colorbar; h.Ticks = ...

20 días ago | 1

Answered
How to work with the current point feature in app designer?
Please see the app attached with the script for the callback function. Let me know if this addresses your problem. Note, I also...

22 días ago | 0

Answered
How to show data in a textField on app designer?
It should be app.TextArea.Value = "testing";

23 días ago | 0

| accepted

Answered
3D shape for rabbit
That is the Stanford Bunny. Available for download here: http://graphics.stanford.edu/data/3Dscanrep/

23 días ago | 1

Answered
Trying to Customize a heatmap color bar and thresholds
m=30*rand(30)-15; surf(m,'FaceColor','interp') cmap = [1 0 0; 1 1 1;1 1 1; 1 1 1; 1 1 1; 0 0 1]; colorbar caxis([-15 15]) ...

28 días ago | 0

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Answered
How to change folders in MATLAB App Designer ?
pwd gives the present working directory. The code saves it as aux_dir. aux_dir = pwd The line below appends aux_dir with the s...

28 días ago | 0

Answered
Axes box incompletely copied to clipboard
Have you tried getframe? h = getframe(hax) Image = h.CData; You can save the Image to PowerPoint as shown below (Note, you wi...

alrededor de 1 mes ago | 1

Answered
How to match colorbar with colormap ranges in surf?
io_V1_mat=linspace(1000,100000,10); RL_mat=linspace(1000,1000000,10); VL=[2000*rand(10,4) 5000*rand(10,6)]; surf(io_V1_ma...

alrededor de 1 mes ago | 0

| accepted

Answered
Export images and PDF in App Designer
If you have the image displayed on an axes, you can do the following: h=getframe(app.UIAxes) h.cdata If you want to make a re...

alrededor de 1 mes ago | 0

Answered
Passing arguments between 2 standalone apps
Please see the links below: Create Multiwindow Apps in App Designer Share Data in Multiwindow Apps For an example, see one of...

alrededor de 1 mes ago | 0

Answered
How to get the current Axes.View after using rotate3d interaction in MATLAB appdesigner?
Please see the attached app and scripts. I created a .m file for each callback function. Let me know if you have any questions. ...

alrededor de 1 mes ago | 0

Answered
how can I plot the following graph
z = linspace(1,3500,100); n = 3000*rand(100,5); date = {'05-Mar';'12-Mar';'19-Mar';'26-Mar';'02-Apr'}; f=figure; axes("YDi...

alrededor de 1 mes ago | 0

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