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Put arrow and its value in a plot
hello this is a simple example , based on the fex submission : arrow - File Exchange - MATLAB Central load('data_ask_MLD'...

alrededor de 1 año hace | 0

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LQI controller is weirdly slow in response and doesn't always reach a goal on plant
hello again used a simplified version of your model and applied simple PID control (easier for real time conversion) : % Def...

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rms of noise signal
hello to get the correct result, you need two uncorrelated random generators. here you are using the same seed , so the two ou...

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Sinewave with log frequency - Shows the wrong frequency content
hello you have to compute the angle increment vs time then take the sine of that angle (or, in other words, do the integral of...

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improve fit compared to R
hello I interpreted your question as how to fit a U shaped function to your data , so at the end I opted for a parabola , is t...

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Sampling time of matlab figure data
hello to retrieve data from a figure , you can do it by two ways : for recent releases : openfig('data points.fig'); set(...

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Interpolate pairs of values from matrix
hello you can surely get the required x , y data for a given z value ; use contour for that purpose as shown in code example b...

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how to extract (x) coordinates and (y) coordinates of the top boundary from bwimage
hello this is a solution that does not even require the Image processing toolbox of course I had to do a bit of gym to conver...

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Trouble in reading .tdms file
hello No toolbox required here - I simply used this Fex submission (files are attached if you prefer the fast way) ConvertTD...

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Plot Fourier Transform (FFT) Interpolation Model into future
hello Giacomo first I corrected some minor bugs (before we dig into more technical stuff) A is an amplitude so you should t...

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Colormap generated using the information of different arrays
hello Richard again you were pretty close to the solution , but to actually make the transparency work you should replace this...

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comment savoir si un dossier est vide
hello The dir structure will return only the two directories entries '.' and '..'. So, check length(d)==2, if that is the cas...

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Moving window percentile computation using Conv
hello maybe this ? NB it does not need conv but requires Statistics and Machine Learning Toolbox % dummy data t= 0:0.25:100;...

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Why does the signal become thicker after noise reduction and the dots on both sides diverge?
hello again you can already get decent results with smoothdata , other smoothing techniques based on splines or NN could also ...

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extracting overlapping portions of 2 similar tracks
hello you could do something like this ... I have manually checked which track is the longest and the code works here because ...

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Matlab code to find the Wave height
hello again I am by no means an image processing expert, but sometimes I go outside my comfort zone ... hopefully my suggestion...

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how to separate the real and imaginary parts inside a cell
Maybe this ? % create dummy data n = 32; for k = 1:2 cellarray{k} = k*ones(n,n)*(1+1i*5); end % process it for ...

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Change format of field contour labels that have been manually added in a tiled layout
why not create explicitely the levels (V array) ? a = 0.98; b = 1.02; Z = peaks(99)/100 + (a+b)/2 ; XY = [-0.375:.125:.37...

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How to find center and radius of an arc from binarized image
hello this is what I can offer you today you will need the attached function (CircleFitByTaubin.m) , and this Fex submissio...

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How do i show the "delta" difference between the two plotted curves?
hello you need to "realign" your two data sets vs common x vector - in other words we need to creat a new x vector and inter...

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Extraction of the spatial coordinates of a curve and calculation of the normal line to each of its points
hello tried a few things here As far as I have understood correctly your question, the points you are looking for are given ...

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Put to white the plot space outside a geometric shape
hello have you checked that the colorbar is symetric around zero (to have white color correspind to zero exactly ? ) this re...

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Error: unrecognized function or variable "bi2de"
Thanks to this post it was easy to (re)create the missing / unknown bi2de function (see end of the code) : Most efficient way to...

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comment afficher une image à un endroit spécifié d'un axe ?
hello Daniel you need to freeze your axes , otherwise you will not get the desired results here I simply used "hold on" after...

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Converting cell array with <missing> elements to numerical or double matrix
hello if you want to stick with readcell, you could do that : clc InputData=readcell('MATLAB_readcell.xlsx',"Sheet","Sample...

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Is there a way to crop an array depending on the values that I want through a function as the values change?
hello try this : a = [0 0 0 0 1 1 1 1 1 0 0 0 1 0 0 0 0 1 1 1 1 1 0 1 1 1 1]; ind = logical(a); [begin,ends] = find_st...

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Slicing arrays and save it in the file
hello with your input data in attachment, try this code : % load data data = readmatrix('data.txt'); % or readtable if yo...

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Script has no errors, but no plot is given
again... let's fix it I cannot check here if e^(r(i)^2) (probably wrong) must be replaced by exp(r(i)^2) - I let you double ...

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Use of eig(A) for eigenvectors
hello let's fix it 1/ had to remove the trailing end - there's simply no reason to have an "end" at the end of your code - p...

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The blank before var >0.5 cause error in R2016a
I don't think it has to do with a specific release I have the same result with R2020a now either you put no space or at least...

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