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automatically scale display range to eliminate outliers
y = randn(50, 50); y (20, 20) = 1e8; % outlier subplot(121) imagesc(y); % outlier removed colorbar subplot(122) imagesc...

約4年前 | 1

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Edit legend description and make a dot in on of the character
Try to modify the following: % generate some data data = (1:10)' + randi([3 20], [1 4]); plot(data) legend(["1 $s=u$" "2 $s=...

約4年前 | 0

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plotting nonlinear equation along real and imaginary axis
Try the following: Re-arrange the equation so that it is polynomial of complex variable z with coefficients being function of r...

約4年前 | 0

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sum of dirac delta function
syms x t y(x) = dirac(x-1); for i=4:3:200 y(x) = y(x) + dirac(x-i); end z = y(x)* exp(-4*(t-x)); y z

約4年前 | 0

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how to divide the Dataset into xtrain xtest ytrain ytest
% doc cvpartition data = randn(2310, 25); %cv = cvpartition(2310, 'Holdout', 0.3); %idxTrain = training(cv); %idxTest = te...

約4年前 | 1

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need to skip iterations in a for loop
L=zeros(1024,1024); % for n=(2:1022:3) % L(1024,n)=1 % end % Set the last row (first end), column 2 to last column wi...

約4年前 | 1

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How to calculate the width that contains 60% of the total area of peaks?
load position load Intensity whos plot(x2, Int); hold on % find the max [maxI, idx] = max(Int); maxX = x2(idx) n = length...

約4年前 | 0

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I need help with plotting
syms t Zc=300; R=100; s=100; v=300/(1*10^-6) tpulssi=s/v k=-1000/tpulssi p=(R-Zc)/(R+Zc) s2=25 tpr=s2/v %heijastuva t...

約4年前 | 1

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Assigning same color for same value at different plots
x{1}=[0.1 0.4 0.6 0.8]; y{1}=[0.2 0.3 0.7 0.9]; name{1}=["A" "B" "C" "A"]; x{2}=[0.1 0.2 0.4 0.6 0.5 0.8]; y{2}=[0.2 0.5 ...

約4年前 | 0

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How do I plot a graph for ϴ for a given range of independent variables?
Assume that r, theta, phi are 3d spherical coordinates. theta is elevation and phi is azimuth. The following is the code to pl...

約4年前 | 0

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I want to create printouts with exact sizes (1=1")
g = figure; g.Units = 'inches'; g.Position = [1 2 3 3]; % 3 by 3 inches plot(rand(10,1)); saveas('test.pdf'); % You ca...

約4年前 | 0

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Trying to understand the single-sided FFT
Assume X(k) = FFT(x(n)). Then one estimate of Power Spectrum Density (PSD) of x(n) can be given as P(k) = X(k)^2 / N for genera...

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Extract data from a table corresponding to specific time
Save your data into a text file: data.txt x = readtable("data.txt"); a= strrep(string(x.Var1) + " " + string(x.Var2), "'", ...

約4年前 | 0

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How to plot averaged ROC curve?
% Create sample data numPoints = 50; nCurves = 10; x = sort(rand(numPoints, nCurves)); y = (sort(rand(numPoints, nCurves)))....

約4年前 | 0

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Removing negative values of 3d data
x = load("ggv.mat"); GGV = x.GGV; figure surf(GGV(:,:,2), GGV(:,:,3), GGV(:,:,1), 'EdgeColor', 'none'); xlabel('x'); ylabel(...

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How do I crop out a certain part within a matrix of numbers?
Are you looking for this? A = [1 2 3 4 5 ; 4 9 6 3 9; 2 5 4 1 3 ] B = A(2:3, 3:5) %% More general X = [1 2 ...

約4年前 | 1

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How Can I Resolve Plotting Error?
clc; %clear the console clear all; %clear all the variables %%defitions temp=2000; x_2=0.01:0.01:0.99; % Get th...

約4年前 | 0

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Removing negative values of 3d data
% Your data data = randn(357, 177, 3); % limit to 0 data(:, :, 3) = max(data(:, :, 3), 0); % to limit the surface up to 0...

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How to show the accuracy on a confusion matrix
You nee to add column and row summaries. Check out the following example from doc. load fisheriris X = meas; Y = species; ...

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How to graph 4 lines on one plot using a function?
% function th=angle(th) th = [10 30 60 95]; r = [0 1]'; % two points for each angle % i=1:length(th); x=r*cosd(th); y=...

約4年前 | 1

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plot the region represented by 'ABS (x) + abs (y)≤1'
If you don't want to derive the boundary of the surface, you can do the following: [xx, yy] = meshgrid(linspace(-2, 2), linspac...

約4年前 | 0

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How can I correct if else to not get this error?
The code has some logical errors (with correction below). For the error "Execution of script MATLABex as a function is not su...

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Removing drift from EMG signal
%% detrend % Remove polynomial trend t = 0:20; x = 3*sin(t) + t; y = detrend(x); plot(t,x,t,y,t,x-y,':k') legend('Input ...

約4年前 | 0

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3 level nested structs leading to out of memory
It takes ~472MB memory as shown below. a = struct('nestedLevelOne', ... repmat({struct('nestedLevelTwo',repmat({zeros(1,10...

約4年前 | 1

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finding the slope of each segement in a fitted curve
T = readtable('https://jp.mathworks.com/matlabcentral/answers/uploaded_files/963595/t1.txt'); idx = isnan(T.NE); T(idx, :) = [...

約4年前 | 0

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How to split data matrix conditionally?
You will not get an matrix for the output since the number of entries satisfying the condition for each column will be different...

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Different color for each line
% generate some random data x = rand(10, 20); % Generate different colors cmap = jet(20); % Change the colororder coloro...

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Best way to export image using Matlab for Latex and Powerpoint - SVG?
For LaTeX, you have the following options in addition to svg: eps file pdf file matlab2tikz/matlab2tikz (https://www.mathwor...

約4年前 | 0

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Plot with two different y axis (text-data)
t = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/961730/Cartel1.xlsx'); head(t) plot(t{1, 2:end}'...

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Is there a way to fine-tune the logarithmic scale of an axis?
semilogy(1:5000); grid on % if you want more control h = gca; h.YTick = [1 100 1000 10000]; % skip one tick

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