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Does Matlab automatically vectorize for loops?

Years ago, I recall reading that Matlab automatically vectorizes for loops. I cannot find any such mentions now. Is this just ...

6 days ago | 0

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I am very new to MATLAB but I have to deliver an assignment. How do I solve matrix dimension issue in line 10 and 11.

Your ldf is 39360 x 1. Your ql is 1 x 3936. Select rows and columns out of those and you get 1 x 1 and 1 x 1. Use * to multiply ...

8 days ago | 0

| accepted

ERROR: Error using {} Variable index exceeds table dimensions. How to apply function to all cells/tables?

first_table = results_velocity_diff{1, 1}; % Initialize a cell array to store the results results = cell(1, width(first_table)...

8 days ago | 0

Why I can't plot x = years , y = GDP

GDP.("YEARS") retrieves the field Years from the GDP object, and displays the result (because you have no semi-colon on the lin...

8 days ago | 1

| accepted

Incosistency Precision Value (decimal double) When using strcmpi/contains

By default, string() of a double precision number gives a result to 5 digits of precision. a = 0.367265 string(a) To get more...

8 days ago | 0

Hypergeometric functions(1F2) in matlab

In MATLAB, some of the parameters are implicit according to the length of the other parameters. function result = hypegeo(q, r)...

8 days ago | 1

| accepted

convert double to signed int

Depending on how the input is stated... value = 0x9C40s16

8 days ago | 1

integral of the besselj function

syms nu x result = int(besselj(nu, x), x, 0, 4*sym(pi)) Bessel J is a family of functions, distinguished by the value. You ca...

9 days ago | 0

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I have purchased the Signal Processing Toolbox but still get an error when trying to use a function

Depending exactly how you install the toolbox, situations can arise where a toolbox is installed but the license is not updated....

9 days ago | 0

Make only the highest values of grayscale image transparent

image(BackgroundImage); imageMax = max(YourGrayscaleImage(:)); alphaMask = double(YourGraycaleImage == imageMax); hold on ...

9 days ago | 0

Are functions called in parfor independent from each other

No, there will be a difference. Linear for loop uses a single random number stream (unless you deliberately change this.) parf...

9 days ago | 0

One function is greater than other

Q = @(v) sym(v); syms z real assume(z > exp(1)) % Define the function f = z - Q(802)/Q(10)^2 * log(z) == (Q(3359)/Q(10)^3...

9 days ago | 0

MATLab does not solve for my variable and only solves the root of the equation

syms a H Q x y z b c d e f g h eqn = x + y*a + z*H + b*a^2 + c*H^2 + d*a^3 + e*H^3 + f*a*H + g*a^2*H + h*a*H^2 == Q; solutions...

9 days ago | 0

matlab serialport in s-function error with Undefined function 'write' for input arguments of type 'string'

You do not initialize serialObj within the same scope as the persistent declaration. You end up passing empty serialObj everywhe...

29 days ago | 0

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in y axis i want 10^(-2000). can anyone plz help

1e-2000 would underflow to 0. You can only use such a number symbolically... but symbolic numbers cannot be used as limits. Y...

29 days ago | 0

What are the possible reasons for data jumps in the plot?

Q = @(v) sym(v); Pi = Q(pi); A0 = Q(15207)/Q(10)^4; A1 = Q(0853721)/Q(10)^6-Q(1816893)/Q(10)^6*1i; A2 = Q(1); th = ...

1 month ago | 0

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Why License Manager Error -9,57 if the username MatLicence/Window is the same?

You have to use the Windows internal username, not the Windows Live email address. https://www.mathworks.com/matlabcentral/answ...

1 month ago | 0

calculate the area of the black colored objectes in a image

stats = regionprops(YOUR_BW_IMAGE, 'Area'); areas = [stats.area]; total_area = sum(areas);

1 month ago | 0

Matlab ODE Solvers - Paramater Question

To pass an additional parameter, use http://www.mathworks.com/help/matlab/math/parameterizing-functions.html However... for the...

1 month ago | 0

Can't read external drives

System Preferences --> Privacy & Security --> Full Disk Access Click on the "+" at the bottom middle . Authenticate. Select /Ap...

1 month ago | 0

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Getting arrow key presses in code without any figures

You can potentially use one of the routines from PsychToolbox; https://www.mathworks.com/matlabcentral/answers/143088-real-time-...

1 month ago | 0

"Empty sym" when solving a system of linear equations with different conditions

Sol = solve([eqn1 eqn2 eqn3 eqn4 ... cond1 cond2 cond3 cond4 ... cond_gear5_1 cond_gear5_2 ratio], i) That is a reque...

1 month ago | 0

Can I update my Matlab behavior

In the MATLAB editor, if you start with examplepath = 'this\is\a\path\' and position your cursor at the path part and press re...

1 month ago | 1

Replace certain columns in a structure array

[Data(30:60).Temperature] = deal(20); [Data(61:80).Temperature] = deal(24);

1 month ago | 0

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License Error while running Yolov4 object detector

It sounds as if you are configured for multiple license servers, and the license server you normally use does not have a license...

1 month ago | 0

I need a link and password to the MATLAB software accompanying the text Business Finance and Economics with MATLAB

The link to the software is https://www.andersoneconomicgroup.com/Portals/0/Zipped%20Toolbox.zip I do not know what the passw...

1 month ago | 0

Is there a way to use fill with animatedline?

No, animated lines cannot handle fill. Consider instead creating a hgtransform for each tile. To move the individual tiles, set...

1 month ago | 0

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How to do I get the standard deviation from an eeg input signal in SImulink?

The instantaneous standard deviation of a signal is 0. Standard deviation normally depends on a complete population -- a comple...

1 month ago | 0

How do I add a column to table?

You can add a new table variable by using either dot notation or the "addvars" function. Dot notation adds new variables to the ...

1 month ago | 2

| accepted

Can't use conv() after using coeffs()? It works when manually inputting the coefficients but doesn't when it is taken using coeffs

syms s eq1 = 2*s^2 + 3*s - 1; N = coeffs(eq1, 'All'); eq2 = s^3 +6*s^2 + 1; D = coeffs(eq2, 'All'); T = conv( double(N)...

1 month ago | 0

| accepted