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xcorr and finddelay giving erroneous results for offset sine waves
hello @James Draper see code demo below for zero crossing (with linear interpolation for best time accuracy) you have access t...

mehr als 3 Jahre vor | 0

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Extract a range of frequencies and power from X-Y vector/array
hello some minor bugs , see comments this is what you wanted : load phaseNoise.mat plot(fnew,pnew) x_index = (fnew >= 1...

mehr als 3 Jahre vor | 0

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Automate the code for data extraction
hello you can try this : folder= pwd; % put here folder where wav files are C=dir(fullfile(folder,'*.nc')); %list all n...

mehr als 3 Jahre vor | 0

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Same color lines in legend using a for loop
hello why make simple things complicated ? if you have only 4 arrays to plot , you could do directly the plot like this - a...

mehr als 3 Jahre vor | 2

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replacing text in a string using indexing
I win the prize ! out = strrep('qqqqqq','qqqqq','qwe') out = 'qweqwe'

mehr als 3 Jahre vor | 0

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delete consecutive commas in txt file
hello maybe not the best code but seems to do the job ! filename = 'ca.txt'; a = readlines(filename); [m,~] = size(a); ...

mehr als 3 Jahre vor | 1

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Plotting harmonic oscillators for different values of Beta
hello as mentionned by @Chris there was some missing dots in element wise operations . Others minor bugs included wrong time v...

mehr als 3 Jahre vor | 0

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Why do I get additional frequencies using standard audiowrite BitsPerSample values?
hello if you export data to wav format , you have to make sure that the amplitude do not exceed +/- 1 otherwise the signal wil...

mehr als 3 Jahre vor | 0

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why my conditional function is not what I expected?
hello this works better :) close all clear all x = -3:0.1:3; y = -3:0.1:3; [X,Y] = meshgrid(x,y); [m,n]=size(X); f=ze...

mehr als 3 Jahre vor | 1

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How can I detect a peak signal inside a periodic pulse array and generate the waveform like the figure below?
hello here you are - hope you will sleep better tonight... array_pulse = [0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0...

mehr als 3 Jahre vor | 1

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How to find unwrapped phase of a cross-spectral at frequencies of 0.1 0.2 0.3 ... 0.9 Hz?
hello minor hint : readmatrix suffices to read numerical txt files ; readtable and conversion from table to array is unnecessa...

mehr als 3 Jahre vor | 0

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Calling a function in function considering a loop
hello here you are. NB I prefered not to use the same "c" variable name both in the function and in the main loop - not that...

mehr als 3 Jahre vor | 0

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Plotting the frequency spectrum of square wave generated with an osciloscope
Hello Maria when I saw this line X = fft(x,nfft) ; I thought that your intention was to do fft with averaging multiple chu...

mehr als 3 Jahre vor | 0

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data clipped warning while coding.
hello FYI, wav export will clip data exceeding +/- 1 range so you have to normalize the data (y) before writting to wav for...

mehr als 3 Jahre vor | 0

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How to have diferent marker and line styles of one variable from multiple data files?
hello see my little demo t = 0:pi/50:2*pi; MarkerStyle={'o','+','*','x','s','d','v','>'}; Colors=[1 0 0; 1 0 1; 0 1 0;...

mehr als 3 Jahre vor | 1

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How to fix a shift issue after taking hamonic mean?
hello is there a reason why the harmonic averaging is needed here I compared it with a standard smoothing function with gaus...

mehr als 3 Jahre vor | 0

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Periodogram loop for multiple columns
hello we should have freq the same for all 240 columns so we are not obliged to store 240 versions of the same vector on the ...

mehr als 3 Jahre vor | 1

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Combining data columns from many text files into one text file of a specified order
hello try this I created some txt files with names : Point Spectroscopy Data 01.txt to Point Spectroscopy Data 03.txt to tes...

mehr als 3 Jahre vor | 0

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how to generate the no. in increasing order but with decreasing difference between the no.?
hello maybe this : (result : a = 10 20 28 34 38 40) % init a(1) = 10; delta = 10; iter = 5; % main ...

mehr als 3 Jahre vor | 0

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mixing audios according to array value
hello the simplest trick here is to first generate z with the same dimension (length) as x and y use the initial t vector ...

mehr als 3 Jahre vor | 0

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Como fazer gráfico de frequência fft
hello we cannot test your code as you don't provide the mat file (use the paperclip button) otherwise I can suggest you to lo...

mehr als 3 Jahre vor | 0

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why the image is not display in the output?
hello Your I array has not much delta between min (99.5) and max value (100), so you need to help imshow autoscale its range t...

mehr als 3 Jahre vor | 0

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How do I bin my X and Y data to plot the mean and SD?
hello quick and dirty solution code should work whatever the "zero" position is in the n array hope it helps X=[1 2 2 3 4...

mehr als 3 Jahre vor | 0

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Why is my title not showing when i display my image?
hello because now your image fills all the space, the title is hidden try with a smaller height : imshow(strain_image) s...

mehr als 3 Jahre vor | 0

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Arrays have incompatible sizes for this operation.
hello in case the two files have different number of samples, either you truncate the longest one or you padd the shortest one ...

mehr als 3 Jahre vor | 0

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How to read .bnn.lis file (ascii file) for the specific data
hello this is one possibility : lines = readlines('SCINTILLAORS STACK WITH CHAMBER-1_21.txt'); %% main code nn = find(c...

mehr als 3 Jahre vor | 0

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Improving fit of data to sum of cosines model
hello some findings that may interest you ... as I don't have the Curve Fitting Toolbox , this work has been done with the p...

mehr als 3 Jahre vor | 1

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How do I evaluate the error for a fitted non-linear curve
hello using both experimental and fitted data you can compute R2 this way : function Rsquared = my_Rsquared_coeff(data,data...

mehr als 3 Jahre vor | 0

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How to calculate average for a multiple of time period
here your are , my friend the frequency is estimated by taking the fft of the velocity signal and getting the dominant peak. b...

mehr als 3 Jahre vor | 0

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How can I find where those indesirabe plots are from ?
hello maybe this ? %% Ids(Vds) %% mu=10; Cox=3.9; W=360*(10^(-9)); L=180*(10^(-6)); K=(mu*Cox)*(W/L); Vth=1; vds=0...

mehr als 3 Jahre vor | 0

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