Answered

BAD REFERENCE SIGNALS ERROR IN TDOA

It looks like you are using a system that has three signals total, two of which are intended to be the same reference signal, an...

BAD REFERENCE SIGNALS ERROR IN TDOA

It looks like you are using a system that has three signals total, two of which are intended to be the same reference signal, an...

4 hours ago | 0

Answered

How can I fix the error "Subscript indices must either be real positive integers or logicals. "

u1(1i)=-((Beta(1i)+10)*abs(x(1))+2*abs(x(2))+s1(1i)+z1(1i))*sign(S(1)); Beta(1i) is an attempt to index which does not exist. ...

How can I fix the error "Subscript indices must either be real positive integers or logicals. "

u1(1i)=-((Beta(1i)+10)*abs(x(1))+2*abs(x(2))+s1(1i)+z1(1i))*sign(S(1)); Beta(1i) is an attempt to index which does not exist. ...

10 hours ago | 0

Answered

Error using == (line 30) Invalid types for comparison?

rxTestLabels = categorical(gather(testLabelsTall));

Error using == (line 30) Invalid types for comparison?

rxTestLabels = categorical(gather(testLabelsTall));

11 hours ago | 0

Answered

How can I fix the error "Subscript indices must either be real positive integers or logicals."

d1=0.15*sin(5*t(1i)); t(1i) is an attempt to index MATLAB has absolutely no implied multiplication -- it does not even have ...

How can I fix the error "Subscript indices must either be real positive integers or logicals."

d1=0.15*sin(5*t(1i)); t(1i) is an attempt to index MATLAB has absolutely no implied multiplication -- it does not even have ...

11 hours ago | 0

Answered

alternative to interpolation, how to introduce randomness

d = rand(3600, length(flux_per_hour)); rd = d./sum(d,1); flux_per_second = flux_per_hour(:).' .* rd; %seconds down, hours ...

alternative to interpolation, how to introduce randomness

d = rand(3600, length(flux_per_hour)); rd = d./sum(d,1); flux_per_second = flux_per_hour(:).' .* rd; %seconds down, hours ...

11 hours ago | 0

Answered

integral calculus question of two variables.

syms x y int(3*x + y * x^2, x, 2, 3)

integral calculus question of two variables.

syms x y int(3*x + y * x^2, x, 2, 3)

11 hours ago | 0

Answered

how do I average each 10 elements of a matrix?

mean10 = mean(reshape(Vector, 10, []),1)

how do I average each 10 elements of a matrix?

mean10 = mean(reshape(Vector, 10, []),1)

12 hours ago | 0

| accepted

Answered

get user input in the form of an integer

You can use inputdlg() to request multiple boxes, and then str2double() the resulting cell array. You can use input() and assum...

get user input in the form of an integer

You can use inputdlg() to request multiple boxes, and then str2double() the resulting cell array. You can use input() and assum...

12 hours ago | 0

Answered

I can't seem to generate a Morse code output on my edit2 static text in my GUI, is there something wrong with my code? We're supposed to create a GUI which converts Letter/Numbers into Morse code..

x = char(get(handles.edit1_num,'String')); Okay, x is what the user input. for i=1:length(x) You want to proceed through the ...

I can't seem to generate a Morse code output on my edit2 static text in my GUI, is there something wrong with my code? We're supposed to create a GUI which converts Letter/Numbers into Morse code..

x = char(get(handles.edit1_num,'String')); Okay, x is what the user input. for i=1:length(x) You want to proceed through the ...

12 hours ago | 0

Answered

Integrating cell2mat array

function ECC = energy_consumption(ECC_1,ECC_2) syms tt ECC_1t = ECC_1.*tt; ECC_2t = ECC_2.*tt; ECC11 = int(ECC_1t, tt...

Integrating cell2mat array

function ECC = energy_consumption(ECC_1,ECC_2) syms tt ECC_1t = ECC_1.*tt; ECC_2t = ECC_2.*tt; ECC11 = int(ECC_1t, tt...

13 hours ago | 0

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Answered

Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

import numpy as np MATLAB does have an import statement, but it only accepts a single name after it; it does not support using ...

Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

import numpy as np MATLAB does have an import statement, but it only accepts a single name after it; it does not support using ...

13 hours ago | 0

Answered

How to add an eguation into my plot?

You can text() a label into position, and you can set the Interpreter property of the text() object to 'latex'

How to add an eguation into my plot?

You can text() a label into position, and you can set the Interpreter property of the text() object to 'latex'

13 hours ago | 0

Answered

How to plot double series with one parameter?

Look at the denominator of your inner summation. It has . But if n = 2*p then that would be p^2 - (2*p)^2/4 -> p^2 - 4*p^2/4 -...

How to plot double series with one parameter?

Look at the denominator of your inner summation. It has . But if n = 2*p then that would be p^2 - (2*p)^2/4 -> p^2 - 4*p^2/4 -...

14 hours ago | 0

Answered

Need help solving equation in terms of a variable

syms L k Lk2 eq8 = cos((L*k)/2)*cos((2^(1/2)*L*k)/4) - (2^(1/2)*sin((L*k)/2)*sin((2^(1/2)*L*k)/4))/2 == 0 K = solve(k*L/2 == L...

Need help solving equation in terms of a variable

syms L k Lk2 eq8 = cos((L*k)/2)*cos((2^(1/2)*L*k)/4) - (2^(1/2)*sin((L*k)/2)*sin((2^(1/2)*L*k)/4))/2 == 0 K = solve(k*L/2 == L...

15 hours ago | 1

Answered

How to go about programming this function in MatLab

c = @(x,y) sum(sqrt((a-x).^2 + (b-y).^2))

How to go about programming this function in MatLab

c = @(x,y) sum(sqrt((a-x).^2 + (b-y).^2))

22 hours ago | 0

Answered

How to call a function in a nested parfor loop?

m = 5; n = 7; xx = randn(m,n); yy = randn(m,n); output = zeros(m,n); parfor i=1:m xi = xx(i,:); yi = yy(i,:); ...

How to call a function in a nested parfor loop?

m = 5; n = 7; xx = randn(m,n); yy = randn(m,n); output = zeros(m,n); parfor i=1:m xi = xx(i,:); yi = yy(i,:); ...

23 hours ago | 1

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Answered

Initial Value of x(0)=16

Offset = 1; x(0+Offset)= 16 %( how can I make this work????) a=16; N=500; for k=1:N x(k+Offset)= (1/2.*((x(k-1+Offset))...

Initial Value of x(0)=16

Offset = 1; x(0+Offset)= 16 %( how can I make this work????) a=16; N=500; for k=1:N x(k+Offset)= (1/2.*((x(k-1+Offset))...

24 hours ago | 0

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Answered

Change names of multiple pictures inside a file

a ='C:\Users\nas\Desktop\0.3'; A = dir( fullfile(a, '*.jpg') ); fileNames = fullfile({A.folder}, {A.name}); for iFile = 1 :...

Change names of multiple pictures inside a file

a ='C:\Users\nas\Desktop\0.3'; A = dir( fullfile(a, '*.jpg') ); fileNames = fullfile({A.folder}, {A.name}); for iFile = 1 :...

24 hours ago | 1

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Answered

Error converting Logical to Char (Horzcat Error)

It is a bug in some versions of Audio System Toolbox. In later versions the line if isscalar([varargin{:}]) has been repla...

Error converting Logical to Char (Horzcat Error)

It is a bug in some versions of Audio System Toolbox. In later versions the line if isscalar([varargin{:}]) has been repla...

1 day ago | 0

Answered

Translation of a plot line

The easiest way is to find the line handle, extract the YData, add the shift to it, and store the result back in the YData prope...

Translation of a plot line

The easiest way is to find the line handle, extract the YData, add the shift to it, and store the result back in the YData prope...

1 day ago | 0

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Answered

Read 100 different digital files one by one

Do not use [] to splice together filenames. Use fullfile() instead. For example, input_video_filename = [dir_input, 'D:\RA\Ste...

Read 100 different digital files one by one

Do not use [] to splice together filenames. Use fullfile() instead. For example, input_video_filename = [dir_input, 'D:\RA\Ste...

1 day ago | 0

Answered

Matrix Fill with same number sequence

YourMatrix(1:6,1:2:end) = 20; YourMatrix(1:6,2:2:end) = 30;

Matrix Fill with same number sequence

YourMatrix(1:6,1:2:end) = 20; YourMatrix(1:6,2:2:end) = 30;

1 day ago | 0

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Answered

matlab optimisation problem _ constraint

A problem is being constructed. It has constraints. One constraint is named energyBalance . The first line, optimconstr(N) say...

matlab optimisation problem _ constraint

A problem is being constructed. It has constraints. One constraint is named energyBalance . The first line, optimconstr(N) say...

1 day ago | 0

Answered

How to extract data between start and end points of flood as separate events?

ev = arrayfun(@(sp, ep) peakpoints(sp:ep), start_points, end_points, 'uniform', 0);

How to extract data between start and end points of flood as separate events?

ev = arrayfun(@(sp, ep) peakpoints(sp:ep), start_points, end_points, 'uniform', 0);

1 day ago | 0

Answered

Plot dashed lines to given y value on a graph

x = [0:1:25]; y = x * pi ; stem(x,y, '--')

Plot dashed lines to given y value on a graph

x = [0:1:25]; y = x * pi ; stem(x,y, '--')

1 day ago | 0

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Answered

Any limitation to FFT calculation for large sampled signals

Example below with 5e7 (50,000,000) points -- 1000 times more than you were asking for. The number you are asking for is no prob...

Any limitation to FFT calculation for large sampled signals

Example below with 5e7 (50,000,000) points -- 1000 times more than you were asking for. The number you are asking for is no prob...

1 day ago | 1

| accepted

Answered

How to read specific lines from a text file and store them in a matrix?

t = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/589822/20200926T000414.txt'); t(1:5,:)

How to read specific lines from a text file and store them in a matrix?

t = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/589822/20200926T000414.txt'); t(1:5,:)

1 day ago | 0

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Answered

How to derive a three variables function from a data

Yes. See for example the Curve-Fitting Toolbox. You might also be able to take advantage of cftool You will need to know the fo...

How to derive a three variables function from a data

Yes. See for example the Curve-Fitting Toolbox. You might also be able to take advantage of cftool You will need to know the fo...

1 day ago | 0

Answered

How to solve a cubic equation using Genetic Algorithms?

f = @(x) x.^4-2*x.^3+3*x.^2+x-4 target = 5; residue = @(x) (f(x)-target).^2 [bestx, fval] = ga(residue, 1) roots([1, -2, 3, ...

How to solve a cubic equation using Genetic Algorithms?

f = @(x) x.^4-2*x.^3+3*x.^2+x-4 target = 5; residue = @(x) (f(x)-target).^2 [bestx, fval] = ga(residue, 1) roots([1, -2, 3, ...

1 day ago | 0