Answered
Quiver plot - how to use in this case?
Try the following: quiver(lat(1:5:end, 1:10:end),lon(1:5:end, 1:10:end),u(1:5:end, 1:10:end),v(1:5:end, 1:10:end));

4 years ago | 0

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Answered
Line plot for irregular timeseries data
a = readtable("book.xlsx"); idx = find(diff(a.date) > 1.2/24); % find the location of large time gap a.Nnuc(idx+1) = nan; ...

4 years ago | 0

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Answered
mean first 10 lines and next 10 line till finish array
a = rand(210338, 3); nrows = size(a, 1) n = 10; nseg = floor(nrows/n) c = squeeze(mean(reshape(a(1:n*nseg,:), n, nseg, 3)));...

4 years ago | 1

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I am getting an error
f=@(x) exp(x)-x.^2+5*x; x=1:0.1:10; y=f(x); d=gradient(y, x); plot(x,d,'o')

4 years ago | 0

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I have a problem with indexing in nested for loop.
for columns=1:size(femur_6d, 2) % number of columns for rows=1:size(femur_6d, 1) % number of rows

4 years ago | 1

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Smaller values not seen in bar graph
X=[5 4 3]; Y=[1 7 8]; bar([X; Y]') figure bar(X) hold on bar(Y, 'FaceAlpha', .5); % transparency figure XMin = min(X, ...

4 years ago | 0

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Answered
How to Split fisher iris data into 60% training and 40% Testing
load fisheriris n = size(meas, 1); %hpartition = cvpartition(n, 'holdout', 0.4); % 40% for test hpartition = cvpartition(spe...

4 years ago | 0

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Output regression tree as text
view(TreeDomain) will not return result to a variable. You can use "diary" function to save the result to a file: diaray tree_...

4 years ago | 1

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csv data to fft in matlab
x = readmatrix("1_20mhz.csv"); n = size(x, 1); fs = 1/diff(x(1:2)) % sampling frequency y = fft(x(:,2)); f = (0:n-1)...

4 years ago | 1

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Answered
"Check for incorrect argument data type or missing argument in call to function 'X'. Error in sum=sum+A(j,h)*X(h)
output= ('Gaussian Elimination Method') % A=input ('Enter your coefficient Matrix') % b=input ('Enter your space vector') A =...

4 years ago | 0

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Answered
Using MATLAB solve this
% For matrix A; (Try it out yourself with matric B) A=[1/2 1/3; 1/4 1/5]; Ak = A; for k=2:20 Ak = Ak*A end

4 years ago | 0

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Using MATLAB command can anyone solve this questio
% Some random input A = rand(2, 2) b = rand(2,1) % Solution x = (A*A)\b % To veryfy that: A*A*x = b A*A*x

4 years ago | 0

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Integration of a function
Check below documentation: https://www.mathworks.com/help/symbolic/sym.int.html

4 years ago | 0

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Fading colors in contourf
%Processing input Data = importdata('NH3.txt').data; Speed = importdata('Speed.txt').data; yy = unique(Data(:,2),'sorted'); ...

4 years ago | 0

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Answered
How do I create a 2D lookup table from efficiency map?
% Combine all the points for red and green curves to form the three vectors % speed, torque, efficiency. Then use the scattere...

4 years ago | 1

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Plot time-series data of various column
% Read in data %k = xlsread('ACTUAL DATA_WIND SPEED.csv'); k = readmatrix('plot_try1.csv'); k(1, :) = []; % remove the heade...

4 years ago | 0

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Answered
Function won't display output in command window
You have to save the function as "funfactorial.m" first (not Untitled.m).

4 years ago | 0

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Answered
matrix error, long answer
Becasue the range of data is too big, the displayed result using the default format may make the smaller value to be 0. Run the...

4 years ago | 0

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Answered
I cannot figure out how to get my data to plot on a simple line graph.
data = readmatrix('Copy of Pop Up.csv'); x = data(:, 1); y = data(:, 3); plot(x, y); % plot('Year','Num_corals') ...

4 years ago | 0

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Can my x-axis have varying scales for certain ranges of values?
Yes. You can change the tick locations: t = 1:200; x = sinc(2*pi*.125*t); plot(t, x); set(gca, 'XTick', [0:20:60 70:10:100 ...

4 years ago | 0

Answered
Why won't my plot line show in plot?
W_dot_net = 3; % a constant n_c = linspace(0.6,0.8,10); % The following can be vectorized and simplified. But the loop f...

4 years ago | 0

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how do I make script that plots values from workspace dividing into the case
x = randn(101, 1); y = randn(101, 1); idx = x.*y > 0; % same signs plot(x(~idx), y(~idx), 'ro'); grid on

4 years ago | 0

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Answered
Double Integration error using /
Keep in mind that the function should be defined for vector arguments x and y. Therefore some * and / should be changed to .* a...

4 years ago | 1

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Answered
Can one install two matlab versions in one machine?
Yes. As long as you have space, you can install new version along with old versions.

4 years ago | 0

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Plotting combined and separated graphs for nested for loops
for n = 2:10 figure; hold on for j = 1:10 plot(x,y(:,n,j)); end hold off end

4 years ago | 0

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Answered
Generate repeatable random integers within a fixed range
a = randi([4 11], 4, 1)

4 years ago | 0

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finding the values of X for a given Y in an equation
syms x y solve(x^4+x^2 == 3)

4 years ago | 0

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Answered
How to create a nested cell file?
DATA(5).A.B.C=rand(12,31); DATA(1) DATA(5)

4 years ago | 0

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Make a logical array into a single logical column, if any of the array rows contain a 1
a = [0 0 0; 1 0 0; 0 1 0; 0 0 0] b = any(a==1, 2)

4 years ago | 1

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Answered
How to find a y value for a given x in a plot?
x1 = 25; y1 = interp1(t1, p1, x1);

4 years ago | 0

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