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I want to calculate the exact surface area of an irregular 3d molecule/cluster using xyz coordinates. Is there a way?
This is a really interesting question. Here are my thoughts: We need the edge points. I'm assuming that what you have (the x,y,...
presque 2 ans il y a | 0
For loop that executes data from an excel file, your mission should you choose to accept it
Here is some code that reads a simple excel table (attached) and calculates a new variable based on the function "ECEF_function"...
environ 2 ans il y a | 1
| A accepté
What should go in a next-generation MATLAB X?
My wish list: A real, beautiful dark theme Improving the appearance of figures. Reduce padding around subplots, set default ax...
environ 2 ans il y a | 0
how to use if else statement
Hope this helps. It uses an example built in dataset (carbig) to demonstrate some basics of working with data in tables. As with...
environ 2 ans il y a | 1
| A accepté
Create a column vector with elements counting down from 200 to 0 in increments of 5
Try transposing your output to flip it from a row vector (list of numbers going horizontally) to a column (list of numbers going...
environ 3 ans il y a | 0
Plotting end points from different arrays
Hi AJ, I'm not entirely sure about your question, since you ask to "plot the end points of these variables (a, e, de, da) again...
plus de 3 ans il y a | 0
| A accepté
Help with table variables calculation
% Define the table T = table; T.rank = [1,3,2,4,2,5,1,3,2,4]'; T.rank = categorical(T.rank); % Create another column to st...
plus de 3 ans il y a | 1
| A accepté
How to plot this function with the interval of [-2,2]?
% Define x x = linspace(-2,2,1000); % Define function y = x + 1-2*sin(pi*x); % Estimate roots as values less than a tole...
plus de 3 ans il y a | 0
Question
Features that will help me detect this object?
I would like to detect an object in digital images (photos attached). It is a small nut. Sometimes I can successfully detect it...
environ 4 ans il y a | 1 réponse | 0
1
réponseQuestion
fitnlm either runs perfectly or crashes with nearly identical data
I am using fitnlm to do a simple curve fit. Most of the time it runs perfectly, but every now and then nearly identical data wil...
environ 5 ans il y a | 1 réponse | 0
1
réponseHow to use nlinfit for a function with a nested infinite sum?
Hi Ishan and Chris, I attached an example. If you figured this out already I would be very grateful to see how you did it, sinc...
environ 5 ans il y a | 0
Question
Change yticks using a stacked plot
Hello, I am using the stackedplot function to display multiple series of data that share the same x axis. I would like to chang...
environ 6 ans il y a | 2 réponses | 0
2
réponsesHow can i shift plot?
p=[1/6 1/6 1/6 1/6 1/6 1/6]; q= conv(p,p); r=conv(q,p); rr=conv(r,p); rrr=conv(rr,p); rrrr=conv(rrr,p); subplot(2,2,1)...
plus de 6 ans il y a | 0
| A accepté
Write a MATLAB®
Hi Pamela, See https://www.mathworks.com/help/matlab/ref/plot.html and also https://www.mathworks.com/help/matlab/ref/fplot....
plus de 6 ans il y a | 0
Simple moving average code for forecasting stock prices
Hi Megawaty, Check out https://www.mathworks.com/help/matlab/ref/movmean.html Here is an idea: time = 1:1:100' %100 trading...
plus de 6 ans il y a | 1
| A accepté
How to make an image straightener like that of cam scanner app?
Hi GMD, Check out https://www.mathworks.com/help/images/ref/imrotate.html Here is a bit of code where I implemented this type ...
plus de 6 ans il y a | 0
fitting a parabola giving unreasonable answer
Two things: I changed your independent values (r) to something that is not so small. Second, I made your equation more simple. I...
plus de 6 ans il y a | 0
| A accepté
How to save animated plots
%% Make some data t = 1:0.1:2*pi y = sin(t) %% Initialize video myVideo = VideoWriter('myVideoFile'); %open video file my...
plus de 6 ans il y a | 18
| A accepté
How to plot a complex power spectrum using MATLAB?
This might have what you are looking for https://www.mathworks.com/help/matlab/ref/fft.html You could transform the data from...
plus de 6 ans il y a | 0
| A accepté
need help in matlab graph
SINR = rand(15,30) %15 x 30 matrix of random numbers Pt = linspace(-30, 30, 15) %create a vector from -30 to 30 with 15 entries...
plus de 6 ans il y a | 0
problem with determining the area of an object in a binary image
You could try running the same code, except instead of using bwarea you could try summing all the pixels in the image. Since in ...
plus de 6 ans il y a | 0
Where can I find the interactive signal processing tutorial?
This one is the official introduction to the toolbox https://www.mathworks.com/products/signal.html And here is an option from...
plus de 6 ans il y a | 0
Question
Simple compression of cylinder- results of finite element model don't make sense
I am trying to simulate the steady state compression of a cylinder using finite element analysis. The model that I have runs, bu...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
Perimeter used by regionprops
Hi all, I am using the output of bwconncomp as an input to regionprops to calculate some values for blobs in a binary image. ...
environ 8 ans il y a | 2 réponses | 1
2
réponsesQuestion
Modify line style with insertShape
Hi all, I wrote a function to make a grid on an image. I can either draw the grid on top of the image or burn/insert it into ...
environ 8 ans il y a | 1 réponse | 0
1
réponseQuestion
Vectorize loop for image manipulation
I have a black and white image (Ibw), and I want to take a circular region from it, and place it on a white background. I made...
plus de 8 ans il y a | 1 réponse | 0
