Answered
2D contour plot considering the boundary of data
[x, y, z] = peaks(40); h = pcolor(x, y, z); h.EdgeColor = 'none'; % Now plot a mask hold on ps = polyshape([-1 -1 1 1], [...

4 years ago | 0

Answered
trying to plot multiple y axis
% data x = (0:.1:4)'; y = [cos(2*x) exp(x) x.^2 5*sin(4*x)]; % Plot on the left and right y axes using yyaxis hax1 = axe...

4 years ago | 2

Answered
How can i transfer a specific number in matrix to another number along the solution matrix??
x = [1,1,0,0]; % binary A = [-27, -10, -11, -25]; idx = find(x); [~, i0] = max(A(idx)); A(idx(i0)) = 0; A % A = [-27, ...

4 years ago | 0

Answered
my code is not running
This is my best guess. for year = 2009:2017 year_index = year-2008 % no space in variable names year_struct = load...

4 years ago | 0

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Answered
indexing with isnan in multidimensional arrays
% A small matrix with nans a=randn(6, 3); a([2 11 13])=nan % idx idx = ~isnan(a) a(idx) So a(idx) is a colum matrix based ...

4 years ago | 0

Answered
uneven distributed points in polarscatter
polarscatter use radian instead of deg b=0:10:350; polarscatter(deg2rad(b),ones(size(b)),100,ones(size(b)),'filled')

4 years ago | 1

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Answered
How to make complete graph from co-ordinates.
Show the node name, edge weight/distance, and node coordinates x=[0.3 ,5.6 , -8.4,6.4 ]; % These are my x-cordinates y=[4.6, 6...

4 years ago | 0

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Answered
Why does plot(X,Y,'or') and plot(X,Y) give different results
The line plot draws line from one point to another point. The order of points is thus important. The 'or' option just plots th...

4 years ago | 0

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How to plot heat map using MATLAB?
a = peaks(40); imagesc(a) colormap(hsv(512)) colorbar

4 years ago | 1

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Answered
Is it possible to have function handles with optional arguments in Matlab
With anonymous function, you can take in the argument in workspace instead of function arguments. a = 1; b = 2; c = 1; f = @(x...

4 years ago | 0

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How can I change the label for my elements with same name?
A = {'1_01';'1_01';'1_01';'1_02';'1_02'}; uA = unique(A); B = A; for i=1:length(uA) idx = find(strcmp(A, uA(i))); f...

4 years ago | 0

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Answered
Write Without using loop
Not sure if you have given the correct equations: % Specify n, t and x n = 10; t = (1:n)'; x = randn(n, 1); % generate...

4 years ago | 0

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FFT of quantized signal
Quantizing the ideal sinusoidal signal will produce a perodical signal, which may have some weird spectrum with 0 at some freque...

4 years ago | 0

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Can u use filtfilt with structfun?
cheby_hp = designfilt('highpassiir', 'FilterOrder', 10, 'StopbandFrequency', 0.4, 'StopbandAttenuation', 80, 'SampleRate', 200);...

4 years ago | 1

Answered
Warning: Matrix is singular to working precision.
A=[1 1 1 1 0 ; 1 1 1 1 1 ; -1 -1 -1 -1 1 ;-778.8791468 -346.4077963 -149.2503011 -149.2503011 -163.019189 ; 16.28468788 201.1553...

4 years ago | 0

Answered
draw a function in the matlab
a=0; k = (-10:1:10)*2*pi; g = -2*pi./(4*pi^2+(a-k*1i).^2) +2*pi./(4*pi^2+(a+k*1i).^2) -(a-k*1i)./(36*pi^2+(a-k*1i).^2) +... ...

4 years ago | 0

Answered
plot for a numerical question
Assume x, k, a are real, a>0. Then . Similarly . Then your formula can be much simplified.

4 years ago | 0

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how to create a sequence with percentage increments
n = 10; x = 3*1.1.^(0:n-1)

4 years ago | 1

Answered
How to integrate 3-dimensional numerical array into one dimension using Parallel Computing Toolbox?
Xd= distributed(X, 3) % distributed along 3rd dim Y = trapz(Xd, 3); % trapz support parallel processing for dis...

4 years ago | 0

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Answered
Change eye diagram plot color into black on white
get a handle of the object and there are color properties for you to change. You may also need to change the Children object co...

4 years ago | 1

Answered
Could anyone help me how to have the legend as in the desired manner for two y axis.
Change the last line x=1:10; y1=rand(1,10); y2=rand(1,10); y3=rand(1,10); y4=rand(1,10); figure(1) [hAX,hLine1,hLine2] ...

4 years ago | 0

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Answered
Cutoff frequency in graph
For cheby filter, the cut-off frequency is the edge frequency at which the magnitude response of the filter is –Rp (passband rip...

4 years ago | 0

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Answered
zplane z or z-1
It's z-plane. See the following example, where all poles are inside the unit circle. [b,a] = cheby2(8/2,20,[1 5]/8); zplane(b...

4 years ago | 1

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Answered
how can i multiply two large arrays of different sizes?
sigma = 0 %can set sigma to any positive integer number but choosing 0 to simplify things for now w = (0:2*pi:10*...

4 years ago | 0

Answered
Code Error Help Please
disp('2a-Part 1') f(-500,30,45,5,5); disp('2a-Part 2') f(-281,20,58,5,5); disp('2b-Part 1') f(-500,30,45,5,3.72); disp('2b...

4 years ago | 0

Answered
How I can modify the decimal numbers in a table's column?
a = randn(5,1) str = sprintf('%.1f\n', a)

4 years ago | 1

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Answered
Filter timetable by month
%T_Departures_Jan = T_Departures.Date_Time(timerange('01/01/2020', 'months'),:); T_Departures_Jan = T_Departures(month(T_Depart...

4 years ago | 0

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Answered
I need to save previous adjacent position of object movement
RxPre = [0 0]; % initial position for xx=1:1:no_of_moves_in_x for yy=1:1:no_of_moves_in_y Rx = get_Rx_position(R...

4 years ago | 0

Answered
Convert Time Given in Seconds to Minute, Seconds, Milliseconds
[h, m, s] = hms(duration([0 0 183.55])) % for sec and fractional sec si = floor(s) sf = s-si

4 years ago | 0

Answered
Packing perfcurve results into a structure
% avoid using Struct (similar to keyword struct) p=struct('X', X_, 'Y', Y_, 'T', T_, 'AUC', AUC, 'OPTROCPT', OPTROCPT); % Al...

4 years ago | 0

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