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I have 2 sets of noisy data when plotted against each other forms a parallelogram . I want to simplify this to a simple parallelogram with 4 vertices and find the area within.
It is first necessary to define the boundary and then use polyarea — T1 = readtable('https://www.mathworks.com/matlabcentral/a...

fast 4 Jahre vor | 0

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Matrix dimensions must agree. Error q=ones(m)-u;
Use: q=ones(size(u))-u; instead to get this result — u= ([1 0.5 0.3 0.2; 2 3 4 5]); [m,n]=size(u); q=ones(size(u))-u; ...

fast 4 Jahre vor | 0

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Inverse FFT for Signal Components
If you just want to filter two frequencies from your signal, either use two bandpass calls (for best results, use the 'ImpulseRe...

fast 4 Jahre vor | 0

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Illegal use of reserved keyword "end", Error. Can some help me with it?
MATLAB is case-sensitive. This: Function [trans] = Trans_tensor2crystalori(o) needs to be: function [trans] = Trans_tensor2...

fast 4 Jahre vor | 0

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Error invalid expression input variable
If you’re only running it using the online Run feature here, note that the online Run feature doesn’t support any interactive fu...

fast 4 Jahre vor | 1

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how to get in the function values above zero only and the plot stop at zero and above
Use a logical index mask — global A R=8.314; F=96485; Alfa=0.1668; n=2; c1=174512; c2=5485; T=343; T1=353; T2=363; k...

fast 4 Jahre vor | 0

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How to plot bode plot in 3D?
Try something like this — Fs = 44100; Ts = 1/Fs; f = logspace(-3, +5, fix(Fs/10)); w = 2*pi*f(:); R = 1e3; % resistor va...

fast 4 Jahre vor | 0

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Error (line 43) Conversion to double from cell is not possible.
I limited this to three iterations because of time constraints (I’m running it offline and have been for a few minutes, so this ...

fast 4 Jahre vor | 1

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How to fit a defined function?
The ‘fun’ function must be presented to lsqcurvefit as a function handle using the ‘@’ operator — x = [1 2 3 4 5]'; % x data ...

fast 4 Jahre vor | 1

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Find all global minima und maxima of an Graph
The findpeaks function has a number of name-value pair arguments that you can use to restrict what it returns. (My favourite is...

fast 4 Jahre vor | 0

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how filter the noise frequency of an audio file with notch filter
Use the zip function to create a .zip file for the .wav file and the upload that. Beyond that, your numerator and denominator...

fast 4 Jahre vor | 0

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How to plot a plot a function that contains itself
One option is to use the isolate function (essentially equivalent to solve) — syms a b y Eqn = y == a * log(b*y) Eqn = isol...

fast 4 Jahre vor | 1

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The problem of constants in linear least squares
since it is a constant, becomes a vector of ones — x = [1.02; 0.95; 0.77; 0.67; 0.56; 0.30; 0.16; 0.01]; y = [0.39; 0.32; 0....

fast 4 Jahre vor | 0

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how to claculate fft with window function?
The first is correct. Note that ‘s’ needs to be a column vector. Fs = 1000; L = 1E+4; t = linspace(0, L-1, L).'/Fs; ...

fast 4 Jahre vor | 0

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How to replicate bode plot
The problem is that you wer not sending the same vectors to your tf call that you were using in the symbolic solution. Note tha...

fast 4 Jahre vor | 0

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Reading tables from the asc files in Matlab
If they are text files, one option using readtable is in the Text Files documentation section, specifically using the name-val...

fast 4 Jahre vor | 0

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How to find index and copy data to the another table having same label?
I would experiment by vertically concatenatating the two tables and then use sortrows on the result to sort them by the first co...

fast 4 Jahre vor | 0

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How to plot cell datatype in MATLAB
I would simply stay with readtable and go from there. Here are two options for plotting the data — data = readtable('https:...

fast 4 Jahre vor | 0

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floating-point arithmetic
‘I think this happens because the IEEE754 conversion of 0.1234 and 0.123 have infinite digits.’ Correct. ‘Does anyone ha...

fast 4 Jahre vor | 1

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Error using * Inner matrix dimensions must agree.
Change the ‘t’ assignment to: t = linspace(-0.5, 1.5, numel(n)); and it works — % clc % clear all % close all F = 13; T...

fast 4 Jahre vor | 0

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Designing a digital filter
With the Signal Processing Toolbox, use the bandpass function. For best results, use the 'ImpulseResponse','iir' name-value pai...

fast 4 Jahre vor | 0

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How to write x-ticks in latex.
Try this — plot([.2 .2], [0 .35],'--k') hold on plot([.5 .5], [0 .35],'--k') axis([0 1 0 .35]); xticks([.2 .5]) Ax...

fast 4 Jahre vor | 0

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Moving text of xline up and down and left and right
I am not certain what you want. Try this — x = 0:0.1:5; y = 0.55-0.5*exp(-1.5*x); maxSignal = 0.2; tMax = 1; figure...

fast 4 Jahre vor | 0

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GA fitness function with variables in a summation
I still do not completely understand what you want to do. Perhaps this — Z = randn(16,1) + 1j*randn(16,1); ...

fast 4 Jahre vor | 0

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how to make a random t-distribution sample?
Use the trnd function.

fast 4 Jahre vor | 0

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Cannot get the plot to work
Subscript ‘maxROC’ — maxROC(i)=Palt/W-(sqrt(2*W))/(sqrt(altrho*S)*CL32OVCDmax); The plot then appears. The problem is that...

fast 4 Jahre vor | 0

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How do I extract the Datetime array from the CSV ?
The readtable funciton imports it as a datetime array — T1 = readtable('https://www.mathworks.com/matlabcentral/answers/upload...

fast 4 Jahre vor | 1

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Unable to plot 3D graph
The ismatrix function wil return true for a vector and for a 2D matrix. It returns false for arrays with more than 2 dimensions...

fast 4 Jahre vor | 0

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How to plot 2d sector at a height using surf command?
Try something like this — a = linspace(0, 50); % Angle Vector r = 40; ...

fast 4 Jahre vor | 0

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Emg Signal analysis, Mean value filter Threshold analysis
@Lisa — I looked at the data, and I have no idea what you want to do with it. I also have no idea what the second column of ‘da...

fast 4 Jahre vor | 0

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