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Question
Is it possible to find out the x and y coordinates of the line plot in a JPEG photo?
I have a diagram in jpeg and I want to find the x and y coordinates of the plot in the image. I have attached the image to the q...
plus de 7 ans il y a | 1 réponse | 0
1
réponseQuestion
How to make a user interface for my regression model?
Hi everybody. I have a statistical model which is able to predict the responses if we put the correct input inside it. I jus...
presque 8 ans il y a | 1 réponse | 0
1
réponseWrite a MATLAB program to determine the response of the following system
I think you can use the following code: a = 0.5; for n=1:200 x(n) = 3*sin(2*pi*0.2*n); if n == 1 y(n) =...
presque 8 ans il y a | 2
A résolu
Energy of a photon
*⚛ ☢ ⚛ ☢ ⚛ ☢ ⚛* Given the frequency F of a photon in giga hertz. Find energy E of this...
environ 8 ans il y a
A résolu
How to subtract?
* Imagine you need to subtract one number from another using MATLAB. * You will not be using eval for this task. * Given two A...
environ 8 ans il y a
noise removal from the part of the medical image where noise is actually present, not the whole image
You can do something as follow which I learned from one of the <https://it.mathworks.com/matlabcentral/profile/authors/8859523-a...
environ 8 ans il y a | 0
Question
What are Estimated coefficients parameters (Estimate, SE, tStat, pValue) when we do the linear regression model by the command fitlm?
Hello, If you try the matlab example about linear regression by the following code: load carsmall tbl = table(Weight,Ac...
environ 8 ans il y a | 1 réponse | 1
1
réponseHow to draw a contour plot over a bi-variate Gaussian in such a way that the lines represent the probability of a sample being within that line?
By defining the annotations in your code and defining the position of the annotation as the position of your contour, you can sh...
environ 8 ans il y a | 0
A résolu
Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...
environ 8 ans il y a
A résolu
Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...
environ 8 ans il y a
A résolu
Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...
environ 8 ans il y a
A résolu
Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...
environ 8 ans il y a
A résolu
Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...
environ 8 ans il y a
Question
How to choose the boundaries of the gray zone in the image?
I have an image and I would like to write a program in order to separate the gray part of the image which is a footprint of a ti...
environ 8 ans il y a | 1 réponse | 0
1
réponseAdd markers at min max points in a triangular plot
You can change your code a little bit to have the results you want: clc close all clear all ts=0.1; t=-5:ts:5; y=repma...
environ 8 ans il y a | 1
manually subsetting data for training and testing purposes
for making training and testing dataset you can use the following commands: % First you make crossvalidation partitioning o...
environ 8 ans il y a | 1
I have extracted 'time' from excel sheet but got in different format.
Maybe you can change them to dates and separate the time as follow: data = xlsread('winddata','C10:C2980'); % for the month...
environ 8 ans il y a | 1
is it possible to display the graph of ATAND in just one quadrant?
You mean something like this: close all clc; xi=0.3; x=0:0.05:4; d=1.-x.^2; e=2*xi*x.^1; fi=atand(e./d); idx0 = find...
environ 8 ans il y a | 0
help completeing Alphabetical matrix problem
If your question is understood correctly, by the following code you can create the Alphabetical matrix that you need: clc ...
environ 8 ans il y a | 0
| A accepté
How to use symbolic toolbox to remove a redundant variable from the equation?
maybe if you put your functions here it will be better. However, logically you have two equations and three unknowns and it is n...
environ 8 ans il y a | 0
| A accepté
Textscan and cpu usage
I just heard that the computation process by the cpu is a very nonlinear process and for this reason every time you see a differ...
environ 8 ans il y a | 0
Set custom x and y axis
Maybe you just need to use: xlim([xmin xmax]) ylim([ymin ymax])
environ 8 ans il y a | 0
Creating a matrix with variables
I think you can easily do this by saving your A variable to a new variable like B and a small change in your for loop: n =...
environ 8 ans il y a | 0
| A accepté
How to edit properties of a plot and highlight certain points in the graph at the same time?
Mario you are using a wrong command for highlighting your points. Just you need a very small change to highlight the points as f...
environ 8 ans il y a | 0
| A accepté
how to find Y value in a parametric plot without cursor
To define the X matrix you need to put the "." before the "/" as below: X= (3*t)+ (1./sin(t)); The Y is the function of ...
environ 8 ans il y a | 0
Making the best fit for this data
If you use the application of Curve Fitting Tool in the app section, you can easily find the best fitting model for your data. F...
environ 8 ans il y a | 0
Question
How to search the files inside a zip file?
I have a zip file which contains another 1000 zip files and I need to search among these zip files and separate 200 of them and ...
environ 8 ans il y a | 1 réponse | 0
1
réponseHow to match and take the part of the string between two specified characters
You can use the following code to extract the lines relevant to 'Start Time' and the 'Duration' and then acquire the required d...
environ 8 ans il y a | 0
Question
Generate plot in the 2nd screen?
Hello, I am using matlab and I have two monitors. One monitor is the command window and the other one is the Editor. My matlab f...
environ 8 ans il y a | 2 réponses | 2
2
réponsesLoops matrix to find zero then cancel the rows relative and create a new matrix
Hello, If A is a Matrix you can simply do it by the following command: B = A(A(:,3) ~= 0,:) if A is Table: B = A{A{:...
environ 8 ans il y a | 0
