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**Content Feed**

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,...

4 maanden ago | 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"...

6 maanden ago | 1

| accepted

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...

6 maanden ago | 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...

7 maanden ago | 1

| accepted

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...

meer dan een jaar ago | 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...

bijna 2 jaar ago | 0

| accepted

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...

bijna 2 jaar ago | 1

| accepted

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...

bijna 2 jaar ago | 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...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 3 jaar ago | 1 answer | 0

### 1

answerHow 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...

meer dan 3 jaar ago | 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...

meer dan 4 jaar ago | 2 answers | 0

### 2

answersHow 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)...

bijna 5 jaar ago | 0

| accepted

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....

bijna 5 jaar ago | 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...

bijna 5 jaar ago | 1

| accepted

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 ...

bijna 5 jaar ago | 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...

bijna 5 jaar ago | 0

| accepted

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...

bijna 5 jaar ago | 18

| accepted

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...

bijna 5 jaar ago | 0

| accepted

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...

bijna 5 jaar ago | 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 ...

bijna 5 jaar ago | 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...

bijna 5 jaar ago | 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...

bijna 5 jaar ago | 1 answer | 0

### 1

answerSubmitted

getUCDavisColors

Returns official colors for the University of California, Davis

ongeveer 5 jaar ago | 1 download |

Question

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. ...

meer dan 6 jaar ago | 2 answers | 1

### 2

answersQuestion

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 ...

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

bijna 7 jaar ago | 1 answer | 0