Answered

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...

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...

21 days ago | 0

| accepted

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",",")

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",",")

26 days ago | 0

Answered

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...

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...

27 days ago | 0

Answered

How to change the unit of magnitude from DB to m/s2 in stft plot ?

hello value_ms2 = 10.^(value_dB/20)

How to change the unit of magnitude from DB to m/s2 in stft plot ?

hello value_ms2 = 10.^(value_dB/20)

27 days ago | 0

| accepted

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 %...

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 %...

27 days ago | 0

Answered

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))

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))

27 days ago | 0

Answered

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 ...

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 ...

27 days ago | 0

Answered

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...

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...

28 days ago | 0

Answered

sliding window algorithm for time-series data

HELLO see demo below - second section implement a overlap method all the best clc clearvars % dummy data data = ran...

sliding window algorithm for time-series data

HELLO see demo below - second section implement a overlap method all the best clc clearvars % dummy data data = ran...

28 days ago | 0

| accepted

Answered

Plotting the first column of each page on one plot

hello simply because your not really doing the loop from i = 1 to 8 this is wrong : for i = size(H_Amputated,3) this is r...

Plotting the first column of each page on one plot

hello simply because your not really doing the loop from i = 1 to 8 this is wrong : for i = size(H_Amputated,3) this is r...

28 days ago | 0

| accepted

Answered

Surface Plot using excel file as a source

hello Andreas simply , you inverted x and y vectors this is correct : filename = 'PlotData.xlsx'; num = xlsread(filename) ...

Surface Plot using excel file as a source

hello Andreas simply , you inverted x and y vectors this is correct : filename = 'PlotData.xlsx'; num = xlsread(filename) ...

28 days ago | 1

| accepted

Answered

Weighted average of lat lon data

hello my 2 cents suggestion data = rand(288,192,60); % dummy data [m,n,p] = size(data); dataw = zeros(1,p); for ...

Weighted average of lat lon data

hello my 2 cents suggestion data = rand(288,192,60); % dummy data [m,n,p] = size(data); dataw = zeros(1,p); for ...

28 days ago | 0

Answered

How to plot complicated implicit function?

hello I tried a few things to understand where the problem lies. I have to say I am not an expert in this field and I will not...

How to plot complicated implicit function?

hello I tried a few things to understand where the problem lies. I have to say I am not an expert in this field and I will not...

28 days ago | 0

Answered

Change the first group of 0s in each column

hello Ana here my suggestion , based on a dummy data array ; i kept the NaN unchanged (my assumption) Code is : clc clear...

Change the first group of 0s in each column

hello Ana here my suggestion , based on a dummy data array ; i kept the NaN unchanged (my assumption) Code is : clc clear...

28 days ago | 0

Answered

separate signals and calculate their rms at different frequencies

hello again I expanded a bit your code to try other bandpass filtering methods and also compare with my little fft code. the ...

separate signals and calculate their rms at different frequencies

hello again I expanded a bit your code to try other bandpass filtering methods and also compare with my little fft code. the ...

29 days ago | 0

Answered

why when i use find command to find the index i face problem

hello no , matlab tells you that it could NOT find an exact match to value = 0.3 (there must be a very tiny numerical differen...

why when i use find command to find the index i face problem

hello no , matlab tells you that it could NOT find an exact match to value = 0.3 (there must be a very tiny numerical differen...

29 days ago | 0

Answered

Problems in reading large matrix with unintended gaps between data

hello again so this is my simple fix , retrieve the two last vectors and do this very simple mathematical fix ; your DRNRF d...

Problems in reading large matrix with unintended gaps between data

hello again so this is my simple fix , retrieve the two last vectors and do this very simple mathematical fix ; your DRNRF d...

30 days ago | 0

Answered

How to use filter() if I don't have the transfer function?

hello you have a FIR filter , and in that case the numerator b is equal to the h impulse response coefficients the denominato...

How to use filter() if I don't have the transfer function?

hello you have a FIR filter , and in that case the numerator b is equal to the h impulse response coefficients the denominato...

1 month ago | 0

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Answered

time series data set

hello try this - there is still a bit of work depending how you want the time axis of the plot being dispalyed for the time ...

time series data set

hello try this - there is still a bit of work depending how you want the time axis of the plot being dispalyed for the time ...

1 month ago | 0

Answered

How to read in multiple text files, each containing multiple lines/formats?

hello I have to admit that I am not a super pro of textscan , so someone else will probably make a better code than me , but t...

How to read in multiple text files, each containing multiple lines/formats?

hello I have to admit that I am not a super pro of textscan , so someone else will probably make a better code than me , but t...

1 month ago | 0

Answered

Scale plots with different steps

hello my suggestion below hope it helps clearvars load('Data1.mat') measurements1 = measurements; x = linspace(-1.2,1.2...

Scale plots with different steps

hello my suggestion below hope it helps clearvars load('Data1.mat') measurements1 = measurements; x = linspace(-1.2,1.2...

1 month ago | 1

| accepted

Answered

Adding and generation of shot noise to a gaussian chirp signal.

hello minor bug fixed in the last lines (see comments ) - it's the time vector definition (length) was incorrect %-----------...

Adding and generation of shot noise to a gaussian chirp signal.

hello minor bug fixed in the last lines (see comments ) - it's the time vector definition (length) was incorrect %-----------...

1 month ago | 0

Answered

Conduct the cross-correlation analysis for the two sets of the data with different time lags and find the maximum correlation coefficient and the corresponding time-lag.

hello here you are all the best T = readtable('wind data set no 3.xlsx'); C = table2cell(T); a = cell2mat(C(4:end,3)); ...

Conduct the cross-correlation analysis for the two sets of the data with different time lags and find the maximum correlation coefficient and the corresponding time-lag.

hello here you are all the best T = readtable('wind data set no 3.xlsx'); C = table2cell(T); a = cell2mat(C(4:end,3)); ...

1 month ago | 0

Answered

Matrix insertion to a txt-file

hello Robert try this : clc clearvars dlmwrite('Mymatrices.txt','----------------------','delimiter','') X = randi(10...

Matrix insertion to a txt-file

hello Robert try this : clc clearvars dlmwrite('Mymatrices.txt','----------------------','delimiter','') X = randi(10...

1 month ago | 1

Answered

How can I read from a file (specific format) using Matlab?

hello here you are : T = readlines('data.txt'); for ci = 1:numel(T) Tci = T(ci); str1{ci,1} = char(extractBetwe...

How can I read from a file (specific format) using Matlab?

hello here you are : T = readlines('data.txt'); for ci = 1:numel(T) Tci = T(ci); str1{ci,1} = char(extractBetwe...

1 month ago | 0

Answered

Automatically select and name variables from import file (.xlsx)

ok so that's my first trial , based on slope values (must be below a given threshold to select sections of interest) not sure ...

Automatically select and name variables from import file (.xlsx)

ok so that's my first trial , based on slope values (must be below a given threshold to select sections of interest) not sure ...

1 month ago | 0

| accepted

Answered

I-PD Controller

hello Chiara I tried to fix this issue and got to this solution (attached) To me and according to the documentation of the 2D...

I-PD Controller

hello Chiara I tried to fix this issue and got to this solution (attached) To me and according to the documentation of the 2D...

1 month ago | 0

Answered

How to assign time on x-axis in emd?

hello if you know your sampling frequency (Fs) of the original data , and the length of the data , it's fairly straithforward ...

How to assign time on x-axis in emd?

hello if you know your sampling frequency (Fs) of the original data , and the length of the data , it's fairly straithforward ...

1 month ago | 0

Answered

time domain and frequency domain plot

hello see example to do averaged fft and spectrogram hope it helps

time domain and frequency domain plot

hello see example to do averaged fft and spectrogram hope it helps

1 month ago | 0

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Answered

How to import a sequence of file .txt

hello Marco see below an example how to read all txt files inside a folder and do the batch processing - like here I simply do...

How to import a sequence of file .txt

hello Marco see below an example how to read all txt files inside a folder and do the batch processing - like here I simply do...

1 month ago | 2

| accepted