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How can I plot the frequency content of my sample?
Did you find a solution yet? Here's one. I wasn't sure if you wanted the frequencies identified or just plotted. clear all %C...

meer dan 4 jaar ago | 1

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drawing a fast Fourier transform
Here's a solution X = dlmread('ECG.csv'); Fs = 350*60; % [samples/min] sampling frequency T = 1/Fs; % [s] sampli...

meer dan 4 jaar ago | 0

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Answered
Please, help solve the dynamics equation in matlab simulink
There is a solution here on the web: https://www.matlab-monkey.com/ODE/resonance/resonance.html Just set the value of 'A' to 0...

meer dan 4 jaar ago | 0

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Answered
finding elements in array
To get the indices to the vk array vk = [0 0.025 0.05 0.075 0.1 0.125 0.15 0.175]; [idx] = find(vk>= 0.05 & vk<= 0.175)...

meer dan 4 jaar ago | 0

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How can I plot each local maxima of my ECG data
Remove the hold off in the outer loop and remove the replotting of the entire dataset in each sement processing step - change...

meer dan 4 jaar ago | 0

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Do anyone code this paper http://link.springer.com/chapter/10.1007/978-3-642-23223-7_13 "A Research on Improved Canny Edge Detection Algorithm " by Jun Li, Sheng Ding
matlab wrapper here: https://github.com/KshanaRules/BajaMap/blob/master/edgedetect.m

meer dan 4 jaar ago | 0

Answered
Euclidian distances between coordinates in pdb file
Solution: % euclid filename = '1UBQ_CA.txt'; CA_CA = readtable(filename); [iatom1,iatom2] = meshgrid(1:76,1:76); distance =...

meer dan 4 jaar ago | 1

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Answered
DFT/FFT of an exponential decay -> Lorentzian
Lorentizans are tricky. The long 'wings' confound spectroscopists to model data digitally with speed and accuracy and to reduce...

meer dan 4 jaar ago | 0

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How to separate ECG signal into time sections?
Wow - that is not the algorithm I would chose for this data at all! But here is a solution for implementing that algorithm clc ...

meer dan 4 jaar ago | 0

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Answered
how i do plot a point connecting 5 points and how i name the end point and centre point with letters
Here's a solution % your data x = [20 25 30 35 45]; y = [40 15 10 50 30]; x0 = 30; y0 = 30; figure('color','white'); xl...

meer dan 4 jaar ago | 1

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Answered
How to plot satellite data?
Here's a solution clc close all clear all filename = 'W_XX-EUMETSAT-Darmstadt,HYPERSPECT+SOUNDING,METOPA+IASI_C_EUMP_20181...

meer dan 4 jaar ago | 1

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Mapping - latitude-longitude / projection of a circle
Here's a simple solution clc close all clear all % select case you want icase = 2; % 1=landat7 width of image, 2=geosynch...

meer dan 4 jaar ago | 0

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How can I initilize the SOM weights by my own vector?
The initial weights for a self-organizing map (SOM) are small standardized random values.

meer dan 4 jaar ago | 0

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Alternating up and down in my script to find path through 'maze'
Here's a solution to finding paths that connect the top of the grid to the bottom using 4-neighbors clc close all clear all ...

meer dan 4 jaar ago | 1

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Answered
How to draw a pie chart in a map?
I downloaded the package and then modified the m_ellipse.m program in that package to create a new m_piechart.m that produces th...

meer dan 4 jaar ago | 0

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Answered
how to find the sum of rows in an array, that fit a condition?
Isn't it obvious since each row has a value that is greater than 50 that the cross sum of terms in the row will be greater than ...

meer dan 4 jaar ago | 0

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How to find average heart beat using fast Fourier transform function
I'm going to give a solution that says your 3000 data points represent a timeseries of 6 seconds. The code can be modified if t...

meer dan 4 jaar ago | 0

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Answered
How to overlay a binary mask over an rgb image?
Here's some code: img = imread('diplo000000-L.png'); mask = imread('sdfsd.png'); mask(:,:,1) = 0; img(mask>0) = 0; image(im...

meer dan 4 jaar ago | 1

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Answered
How to get a script to only give me the number of elements less than 2?
Here are random numbers as an example. It plots all the values in blue, finds indices for values less than 2, and plots those va...

meer dan 4 jaar ago | 0

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Plot the orbit of a satellite
Edited 10/28/2021 - Thanks to a bug found by @Frank Epstein in the interpretation of Mdot - this is updated in TLE2OrbitalElemen...

meer dan 4 jaar ago | 10

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Answered
About FFT of sin(x) / x , how to plot ?
Hi, I was able to get a plot by removing the discontinuity in the signal. Is this what you were expecting? % show the " y=sin(...

meer dan 4 jaar ago | 1

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Answered
Extract daily time series NetCDF to specific location
Here's a solution: clc close all clear all filename = ('precip.2019.nc'); info = ncinfo(filename); % Variable 1 lat = d...

meer dan 4 jaar ago | 1

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How to sort my signal based on the frequency domain? low to high
Here's a suggestion for enhancing the spectogram to pull out signals. More information about the feature signals would be helpf...

meer dan 4 jaar ago | 1

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Answered
Extraction NetCDF time series to point
Hi. This is a completely different file format. The data are on a finer spatial grid, but there are only 365 'times'. The tim...

meer dan 4 jaar ago | 0

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How can assign a color for two member of a matrix?
So the new constraints are: change the background color from grayscale to single tone color scale arbitrary set of bubbles to ...

meer dan 4 jaar ago | 1

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source code for cap modulation
There's a download for that here: http://en.pudn.com/Download/item/id/3152000.html

meer dan 4 jaar ago | 0

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Describing my graph in terms of a fourier series.
If I understand your question, it sounds like you want to find the underlying signal frequencies of your data. clear variables ...

meer dan 4 jaar ago | 0

Answered
RE: Extraction of NetCDF to certain point and location
Here's a solution: clc close all clear all % ftp://ftp.cdc.noaa.gov/Datasets/cmap/std/precip.mon.mean.nc filename = ('pre...

meer dan 4 jaar ago | 0

Answered
Extraction NetCDF time series to point
Here's a solution that is workable: clc close all clear all % ftp://ftp.cdc.noaa.gov/Datasets/cmap/std/precip.mon.mean.nc ...

meer dan 4 jaar ago | 0

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Answered
Read row of data from excel file and step/iterate through each row when program is looped
Probably not the best way, but it works: irow = 1; Data = xlsread('fakedata.xlsx','Sheet1',['A' num2str(irow) ':B' num2str(iro...

meer dan 4 jaar ago | 1

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