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Subtract 1 from variable each second
hi nothing fancy counter = 100; while true do_something=true; counter = counter -1; % decrement counter pause...

2 months ago | 0

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How to plot this figure?
hu try this and adapt to your own needs a = rand(300,3); figure,imagesc(a);colormap('jet');colorbar

2 months ago | 0

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Answered
Noisy plot after deviation (no sensor)
hello my suggestion, with some smoothing at all stages : z_irl = readmatrix('z_irl_data.txt'); z_irls = smoothdata(z_irl,'g...

2 months ago | 0

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Answered
Trying to find out that how many loop cycle it complete before the 'S' become zero. S value is not decreasing. Need to decrease S value zero and sum the total cycle number?
hello again so I made 2 modifications initialized F with 0 (my guess) changed the while tolerance limit because otherwise i...

2 months ago | 0

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in my program, i retrieve .csv data using load, but why is there an error when retrieving the data? . anyone can help me?
hello again it worked fine with readtable , here I simply plot the first variable of the table and it's min value T = readtab...

2 months ago | 0

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Plotting acceleration vs time on Matlab from accelerometer data that doesn't have a time column
hello as we know the sampling rate Fs and the amount of samples , there is no big difficulty to reconstruct a time vector : ...

2 months ago | 0

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How to draw a line of best fit on filtered discrete data sets
I used this simple example and created a gap in the data (not NaN's) there is no problem to use polyfit in that situation ...

2 months ago | 0

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Answered
Deriving an average loop waveform from multiple loops
So finally after some attempts and headaches , a positive result emerged this is it and the code that generated it - there i...

2 months ago | 0

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Answered
How to find a frequency of a chirp signal at each sampling point
hello this code will plot the period (and from there the frequency) between two consecutive "zero crssing" points see second...

2 months ago | 0

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Answered
Fitting Gaussian keeping max amplitude same
hello robust smoothing can help you see code below clc clearvars %--- Example #1: smooth a curve / narrow peaks remov...

2 months ago | 1

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Filter amplitude data as a function of time, calculating the time difference
hello Ignacio see figure(2) results result is displayed in command window : time distance dt = 440.9509 s at threshold val...

2 months ago | 0

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Plotting data from a matrix: Showing shaded area on graph
hello Isabella this is my suggestion and how it looks as a plot you may have to tweka the labels / titles etc ... hope it h...

2 months ago | 0

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Answered
Color gradient for graph in a for loop
hello this would be my suggestion , gray dark to light for one curve I wonder if you overlay 3 curves at each iteration if it...

2 months ago | 0

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Answered
bar plot with different color bars depending on height
hello Giannis see code below and ouput here : clc clearvars x = [1:10]; y= [13, 25, 34, 65, 78, 92, 54, 46, 39, 5]; ...

2 months ago | 0

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Answered
concatenate repeating digit to the end of a column in numeric matrix
hello so my 2 cents suggestion, build on @DGM input (tx to him ! ) it just needed an additionnal correction term to be perfec...

2 months ago | 0

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how can I concatenate [aa,bb]?
hello I believe there are a frew mistakes as aa and bb are not indexed in the for loops , so you have a scalar that will be ov...

2 months ago | 0

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Answered
How to draw such plot
helllo simply like this (one curve demo) % 3 storey plot x = [ 1 1 2 2 3 3]; y = [5000 4000 4000 3000 3000 2000]; p...

2 months ago | 0

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Hello everyone. How to make a matrix with unequal number of rows and columns, and make the number of rows and columns the same by adding zeros. Thank you very much.
hello see example code below clearvars; load('dataA.mat') [m,n] = size(dataA); if m>=n out = zeros(m,m); out(...

2 months ago | 0

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gaussian chirp signal generation
hello Maj I fixed your code and improve a bit the x axis time display (all plots are centered around t = 0 ) the major problem...

2 months ago | 0

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Extracting a double from a text file
hello my 2 cents suggestion (as I still struggle with regexp !) bs = split(fileread('data.txt')); values = bs(find(strcmp(...

2 months ago | 0

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Answered
Be able to Detect Breathing
hello David yes you can clear tell that the bed is not empty and that someone is actually breathing by either saying the time ...

2 months ago | 0

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Is there a way to smoothen the function/"bridge the gap"?
hello this would be me suggestion if the idea is to replace the "faulty" data segment with a piecewise linear segment and then...

2 months ago | 0

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how to inser loop in equations
hello in matlab , index are starting with 1 (it's not a zero based language) - so your code will not work for i = 1 I made a...

2 months ago | 0

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Answered
How can I write a table to .csv file
hello for numerical data you can use writematrix - see example below writematrix(rand(100,5),"file.csv","Delimiter",",")

2 months ago | 0

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Jacobi iterative method in matlab
hello there were quite a few bugs there - now see the correction below you should do a while and not a for loop if you sto...

2 months ago | 0

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Answered
How to change the unit of magnitude from DB to m/s2 in stft plot ?
hello value_ms2 = 10.^(value_dB/20)

2 months ago | 0

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Answered
How to read this mtx file in matlab
hello this is a txt file with 3 columns and 1 header line see example below % demo clc clearvars; % % load data %...

2 months ago | 0

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plotting figure ignore blank entries
hello remove first the empty cells , example below (R is the cell array) R = R(~cellfun('isempty',R)); plot(cell2mat(R))

2 months ago | 0

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Denoising the sinusoidal signal
hello see my suggestion below notice that your code was wrong regarding sampling frequency (barely at 5 Hz) so this is not ...

2 months ago | 0

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Applying bessel filter to raw data to reduce the noise (error)
hello here you are my friend; bessel are continuous filters that must be converted to digital (a contrario from butter that ge...

2 months ago | 0

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