Answered
How to check a matrix is multibanded?
% Create a banded sparse matrix B = bucky; r = symrcm(B) a=B(r,r); imagesc(a); % Check if it is banded m = size(a,1); ...

26 Tage ago | 0

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How to get the aircraft location from a flight path plot?
% Generate some data t = (7020:210:10080)'; lon = 102.915 - t/10080; lat = 1.363 - t/20000; heading = 153 + t/50040; % Cr...

26 Tage ago | 1

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Answered
How do I use a user input string to reference a structure that already exists?
Here is one solution without dynamically naming a variable: ... UserInput='ExistingStructure'; if exist(userInput, 'var') ...

29 Tage ago | 0

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Group values of a vector into new vectors according to magnitude
A = [17 323 100 3 278 220 45 351 212 51] B = A(A>=0 & A<50) C= A(A>=50 & A<100) % Leave D for you

30 Tage ago | 0

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Answered
generating random numbers only 2 numbers
a = randi([0 1], [1 30])*3 + 1

30 Tage ago | 1

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How to get the file names that start with the same letter in the folder?
fn = dir('T*.*') % you can use 'T*.T', 'T15*.bin', etc

30 Tage ago | 0

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How to connect dots in figure?
% data x = randn(50, 6)*.5+(1:6); % 6 lines, 50 data points each line % if you really want to plot 50 lines, then: plot(x') ...

30 Tage ago | 0

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combine different size vectors into one matrix
% use a cell array instead of separate variables e{1}=[2 3 4 5]; e{2}=[4 7 7]; e{3}=[8 8 7 4 2 5]; % find the longest vect...

30 Tage ago | 0

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Answered
Matlab 3D bar plot
xyz=[... 6.50319529000000 10 5 6.50463629000000 10 10 6.50548840000000 10 15 6.50607061000000 ...

30 Tage ago | 0

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How to combine and transpose arrays?
s1 = rand(5,1); s2 = rand(5,1); s3 = rand(5,1); s4 = rand(5,1); imp =[s1 s2 s3 s4]' % or imp1 = cat(2, s1, s2, s3, s4)' ...

30 Tage ago | 1

Answered
I need to read third coloumn and all rows of text file in matlab. Pls give your suggestions.
You can read all data (xyz.txt contains first part of your data). Then it is up to you to use which column of data. data = rea...

30 Tage ago | 0

Answered
How do I switch location of the largest and smallest elements of an array?
vect = randi(20,1,15) [~, imax] = max(vect) [~, imin] = min(vect) % swap tmp = vect(imax); vect(imax) = vect(imin); vect...

etwa ein Monat ago | 0

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Only graphing two out of three of my graphs
ch0 = ex32excel(:,2); ch1 = ex32excel(:,4); N = length(ch0); deltast = 2e-5; t1 = 0:deltast:deltast*(N-1); xlow=0.02394;...

etwa ein Monat ago | 0

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solving for complex numbers
A = 3+4j B = 3 -2j C = 2*exp(1j*deg2rad(50)) % Find out D yourself

etwa ein Monat ago | 0

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How to plot several signals in 3D
t = 0 : 10e-5 : 2e-2; y1 = sin(2*pi*50*t); y2 = sin(2*pi*100*t); f = [0 2 4]; plot3(t, f(1)*ones(size(t)), y1); hold on p...

etwa ein Monat ago | 0

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Answered
How can I plot the graph?
x = 0:100; plot(x,carFunc(x)); ylim([0 30]) function output = carFunc(x) output = zeros(size(x)); idx = (x >= 75...

etwa ein Monat ago | 1

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Answered
How to downsample a vector x by an integer factor M with a single statement such as for loop or conditional statements
a = 1:10; b = downsample(a, 3) % use downsample c = a(1:3:end) % statement

etwa ein Monat ago | 0

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Answered
Why is MATLAB producing the wrong output with this function?
beamLoc = [10 200 300] b = FindDeflection((beamLoc)) function [beamDef] = FindDeflection(beamLoc) A = (1/3.19e9); beamDef = ...

etwa ein Monat ago | 0

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Answered
print numbers to command window
With mapping toolbox, you can use angl2str. doc angl2str for more details. A = 0; B = 206.4188; C = -130.5507; A1 = angl...

etwa ein Monat ago | 0

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Answered
Problem obtaining minimum negative value in an array
t = linspace(0,15,400); y = exp(-0.5*t).*cos(2*pi.*t); plot_cos(t, y) % plot t-y or y-t? function m = plot_cos(t, y) plot(y...

etwa ein Monat ago | 0

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display functions and coefficients from the basic fit tool box on a plot
xy = [3.25 0.801369; 3.375 0.883622]; x = xy(:, 1); y = xy(:, 2); f1 = @(x) 0.6580*x-1.337209; f2 = @(x) 0.0632*...

etwa ein Monat ago | 0

Answered
display functions and coefficients from the basic fit tool box on a plot
Use your own fitting function: % Some data x = 0:.1:10; y = x.^2 +2*x + 3 +randn(size(x))*.4; plot(x, y) % fitting (polyf...

etwa ein Monat ago | 0

Answered
Can MATLAB recognized the name of a variable with input function?
It's possible but it should be avoided if possible. milk = 30; %x = input('what is the name of the object? ', 's') % use this...

etwa ein Monat ago | 0

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Answered
How to change yellow fill to white in 'mapshow'
p = shaperead('concord_hydro_area.shp'); mapshow(p, 'FaceColor', 'y') % change 'y' to 'w' for white

etwa ein Monat ago | 0

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Answered
a problem with transpose of Symbolic matrix
The bar over the variable means complex conjugate. ' means complex conjugate transpose, while traspose or .' means transpose wi...

etwa ein Monat ago | 0

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Answered
fill missing point in data (x y z 3 columns data)
% Generate some data [x, y] = meshgrid(1:60, 1:50); x = x(:); y = y(:); z = 1./((x-30).^2+(y-20).^2); % make a square ho...

etwa ein Monat ago | 0

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How to Cell indexing
X1=11; X2=22; u{1}=[X1,X2]; u{1} % To access "one" element u{1}(1) u{1}(2)

etwa ein Monat ago | 1

Answered
How can I have proper alignment in my output?
Try something like this to align the text: fprintf('%-30s', 'Numeric Daily Averages:'); fprintf('%10.2f ', rand(1,4)); fprintf(...

etwa ein Monat ago | 1

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Answered
Indexing by using column names
A = zeros(3,1); B=rand(3,1); C=ones(3,1); T = table(A, B, C) VarNames = {'A', 'C'}; col_index = ismember(T.Properties.Variabl...

etwa ein Monat ago | 1

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Answered
How to convert interval from to scalar. The problem is:
Do you mean a loop over a number of interals? k = -0.5:.05:-0.1; %(interval) for i=1:length(k) prob.Objective = k(i) * f...

etwa ein Monat ago | 0

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