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adding contour lines to pcolor plot
hello again maybe this ? figure pcolor(dateVector, depth, combinedaverages') set(gca, 'YDir','reverse') shading flat ...

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How to fit data on a specific region, using lsqcurvefit or any other?
hello fyi, some results obtained with the poor's man solution (based on fminsearch) NB : I changed your log10 to log in my c...

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Why does a frequency input for a chirp not work?
hello fixed a few mistakes in your code the most obvious one is when you compute a sinewave . You have to remember that you ...

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Change the period/frequency of a Van der Pol Oscillator
hello seems to me your code actually generates the correct frequency signal at 0.8 Hz , as soon as you stick with f = 0.8; ...

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finding peak points while signal processing
hello most obviousy you didn't peak the right data in this plot (a copy paste from above that I fixed below, look for the comm...

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How to plot a temperature contour from an excel file on MATLAB ?
hello maybe this ? I am not sure to understand what you mean by i want the width to be 50 mm and the height to be 220 mm ....

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merge multiple excel file data
hello try this to make sure to get the files in the right ordre please download first this submission Natural-Order Filenam...

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Is it possible to calculate variating signal frequency?
hello Niki try this below frequency is computed by finding a "zero" (or any other threshold value) crossing point with your ...

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How to delete odd columns and odd rows from a image
helllo try this (A is a array we keep only the even rows and columns) % create dummy A array a = (1:10); for ci = 1:10 ...

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Find min value of each column of 2D lattice and plot
not sure if I understood really what you want to do maybe this ? clc clear N = 10; [x,y] = meshgrid(1:N,1:N); xlim([1,N]...

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Plot a plane from 3 points
hello Alberto welcome back I was first a bit puzzled because you speak of "line" whereas we are talking here "plane" that goe...

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How to accurately measure the height of a 3D structure?
hello this is my rough first trial NB that I didn't use here any surface smoothing (needs still to be implemented) but I as...

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How to get a csv file from matlab
hi nothing complicated here - try this , I used a smaller array size for the example but it should work for your larger array ...

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Interpolated data is drifting downward
hello I don't really understand your problem and why you make the code so complicated I assumed the issue is simply you have...

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How to use isoutlier based in a part of the data?
hello why not using islocalmin ? seems to me what you want is to keep the first 3 points (corresponding to a local min) a =[...

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Bi-linear (piecewise) curve fitting
hello try this (a fairly simple code) T1 = readtable('testdata.xlsx'); x = T1.Displacement; y = T1.BaseForce; % top fl...

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2D plot of deformation data
hello again basically used the same code for U and V and got these 3 plots for ColorData for U for V code : data...

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Hi , all there , i have an excel file that i want to split it by special element value in the file to some files . how can i make it possoble with matlab
hello try this I created first a dummy array with some zeros at lines 25 / 75 / 85 so the for loop will split the data with...

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Finding delay b/w two signals using gccphat
hello I think I can get the correct result with the regular xcorr function (I have not the toolbox for gccphat function) but ...

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Smoothing for multiple csv files
hello xlsread is a bit outdated , you could try more recent alternatives (readtable, readcell , readmatrix,...) suggestion be...

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how to filter the noise of a signal
hello I was surprised to see that your signal length is very long (730185 samples) and probably you are using a quite high sam...

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Finding row index in a matrix in which the sum of the elements is greater than 1
hello here you are S=[1,0,0;0,1,0;1,1,0;0,1,1;0,0,1] row_sum = sum(S,2); rw_ind = find(row_sum>1)

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Automatically identify two numbers within an matrix
hello Alberto welcome back ! here a demo for the 'matrix.txt' case the other one is basically the same , simply change t...

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Reading Multiple CSV Files in a Sequence
hello that's the Achille heel of the native dir command it will not sort the file names correctly you need this : Natural-O...

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How to make a good fittings
hello sorry I don't have the curve fitting toolbox but such a simple fit can be easily done with fminsearch the constant you...

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Distortion introduced by filtering interpolated data.
hello when you do non unique data removal and interpolation, you are introducing a little distorsion in your original signal ,...

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Broadband signal deesign
hello maybe this you can tune the frequency range , frequency spacing and amplitudes distribution according to your preferen...

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Problem with Fourier Transform fft
hello when you do the fft with a buffer length equal your signal length (as you did) you get the maximal frequency resolution...

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Index in position 1 is invalid. Array indices must be positive integers or logical values.
hello depending of your format, the command window will display more or less decimals I suspect c(i,2) = 272.0000.............

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Smoothing the Data with For Loop (Sliding Window)
hello seems to me smoothdata can do what you need plot(temperature) hold on ts = smoothdata(temperature,'gaussian',30); ...

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