How to subset a table in a function based on input arguments
Can just use an anonymous function: clc close all clear all getVarsetTable = @(t,userPrefix) t(:,contains(t.Properties.Var...

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How to change the way it is being plotted?
Possible solution (journal paper values just eyeballed not digitized) JSRdB=40:5:60; MSESilva = [0.9592 1.1141 1.6038 ...

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Find cell position of a timeseries array
Assuming your data are in vector arrays that are, say, doubles, and packed as not cell arrays: test.Time = 0:0.1:50; test.Time...

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I NEED TO SHOW THE COLUMN STACKED DATA OF MY LANDSET IMAGE
This unpacks the capture, but i'm not sure what you want next: [img,cmap] = imread('Capture.png'); imshow(img) imgData1 = s...

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Construct a vector from another, but add 2 values every 10 iteration
Try this: npts = 811; A = linspace(0,1,npts); numAdded = sum(mod(1:npts,10) == 0); B = zeros(1,numAdded+npts); k = 0; for ...

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creating a 1D vector
Here's one of many possible solutions (edited 2020/01/11 for off-by-one error in indexing): clc close all clear all ECG = ...

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creating a 1D vector
Here's a solution that has a step by step process. clc close all clear all %% Step 0 % load the data ECG = dlmread('ECG...

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Minimizing a function with one variable
Is this what you're looking for? p = pi; w = 9*pi/56; c = 5; rmin = -40; rmax = 40; % inline function fun = @(x)(0.5*p*...

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How to tell if a random 3x3 Matrix is invertible
Back to your question, I have to produce a random 3x3 matrix A that is invertible and display it. One way could be to start with...

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maximum of the radiation pattern in a direction
Solution, I hope! % for a general (theta0,phi0) express the surface in spherical coordinates % [Azimuth,Elevation,R] = cart2sp...

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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...

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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...

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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...

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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)...

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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...

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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

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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 =...

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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...

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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 ...

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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...

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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...

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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...

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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.

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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 ...

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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...

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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 ...

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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...

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How to overlay a binary mask over an rgb image?

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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...

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Satellite Orbit Coordinate Transformations
How to interpret TLE and convert its unperturbed orbit into various coordinate systems.