MATLAB QUESTIONS

MATLAB: Pass part of structure field name to function

I hope this helps . I need to pass a part of a structure's name into a function. , How about using a helper function such as

TAG : matlab

Date : January 12 2021, 08:33 AM , By : Jonathan Bernard

value of X=0 from if statement is not plotting in matlab graph

wish helps you Whenever plotting in matlab your data need to be the same length. In your case, you're trying to plot a single 0 over your entire t vector for ask. You need to change this to a zeros vector, like this:

TAG : matlab

Date : January 11 2021, 03:26 PM , By : Pepe Araya

How to do median filter on an indexed image using MATLAB?

hop of those help? From the medfilt2 documentation:B = medfilt2(A, 'indexed', ...) processes A as an indexed image, padding with 0s if the class of A is uint8, or 1s if the class of A is double.

TAG : matlab

Date : January 10 2021, 01:57 PM , By : antonio

How to recognize this simple capcha?

I think the issue was by ths following , alt text http://internationalpropertiesregistry.com/Server/showFile.php?file=%2FUpload%2F02468.gif358455ebc982cb93b98a258fc4d6ee60.gif , Easy answer: NOPE

TAG : matlab

Date : January 10 2021, 01:57 PM , By : Sigtryggur

How to deal with the warnings when importing BNT tools in MATLAB?

I wish this helpful for you The warning means exactly what it says: BNT contains some functions that have the same name as Matlab built-in functions. This has the potential to break some functionality, if the new functions are not compatible with the

TAG : matlab

Date : January 10 2021, 01:49 PM , By : Manik

How to convert a web page into an image using MATLAB?

hope this fix your issue I'm not sure if Matlab is the best way to do this, but here's how: use Matlab's built-in web function to open your webpage in a Matlab browser Download and use the ScreenCapture utility from the Matlab File Exchange to save a

TAG : matlab

Date : January 10 2021, 01:47 PM , By : hsdfhksh

How to pass function to radio button in a button group created using guide in MATLAB?

fixed the issue. Will look into that further A solution for the Button Group Callback: SelectionChangeFCNUse the Selection Change callback property (right click on the Button Group and select View Callbacks->SelectionChangeFcn) of the uipanel. The ev

TAG : matlab

Date : January 10 2021, 01:47 PM , By : John Studdert

How can I change the tick marks scale in MATLAB?

seems to work fine I have a matrix A which I am plotting using imagesc(A). The matrix is a 512 X 512 matrix, but I need the axes to be labeled from 0 to 4000 instead of 0 to 512. I can't seem to find where I can change this instead of just changing f

TAG : matlab

Date : January 10 2021, 01:47 PM , By : JackIT

How do I solve this conditional probabilities problem with MATLAB?

Hope that helps EDIT2 (following the OP's comment)From bayes rule we know that P(C|x1,x2,x3) ~ P(C)*P(x1,x2,x3|C) and therefore for classification, you compute that expression for all C=j and predict the most likely class (MAP).

TAG : matlab

Date : January 10 2021, 01:45 PM , By : ganok_tor

How to plot sub-region of the 2-unit simplex in Matlab

fixed the issue. Will look into that further You are not very far! Just few style options and the plot of the 2-simplex and you should be good to go! Remove edges of your patch (so it looks flat) and make another patch call using the 3 corners of the

TAG : matlab

Date : January 08 2021, 10:52 AM , By : LinnheCreative

Turn off all code analyzer warnings in the IDE

will help you You can use the search bar in the Code Analyzer tab in the Preference menu to filter only warnings. Then you can select them all with ctrl+A and right click and select 'Disable'.Then you can save your new settings as a new mlint config

TAG : matlab

Date : January 08 2021, 10:52 AM , By : Val

How to use tdfread to open txt files without a header?

Does that help Yes, like you already suspected, this happens because of the missing header in the file. As a solution you can just add one to the top of your file, so that it looks like this:

TAG : matlab

Date : January 08 2021, 03:18 AM , By : user165871

Plotting geotiff in matlab with pcolor

I think the issue was by ths following , The displayed result is black because the black grid hides the image. When you zoom in, you can see the image data.

TAG : matlab

Date : January 06 2021, 03:17 PM , By : Chris Tattum

plotting already saved handle in matlab

With these it helps You can use copyobj to copy over the graphics element to a new figure:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Gabriel

Surpress output when calling matlab live script from other live script

hope this fix your issue I have a live script (main.mlx) that is calling two other live scripts (sub1.mlx, sub2.mlx). I want the output to be shown when calling the subscripts by themself but not when I call the main script, though I want to display

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user119985

Calculate Interval mean of column in matlab (interval not fixed)

should help you out The accumarray function does just that:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : BinaryBoy

illegal plot error when trying to use subplot

I think the issue was by ths following , You just mixed the parameters of plot and subplot. Read subplot documentation.

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user112141

Polyfit and Polyval in Matlab

like below fixes the issue I want to understand the functions polyval and polyfit. At First I programming in Matlab the following lines: , The 3rd output argument, changes the independent variable from

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user179190

How to run a .mexw64 file on Mac?

Does that help A mexw64 file is compiled for Win64 systems, the equivalent extension for macOS is mexmaci64 - this file simply wasn't meant to be used on a macOS. You should try to contact the authors of the file and ask them to recompile it for Mac,

TAG : matlab

Date : January 02 2021, 06:48 AM , By : akr

MATLAB Crashes During the Timer Object Deletion

like below fixes the issue The solution I am currently using is adding a short pause between stop and delete. It's a kind of a patch, and I am not sure if it's going to work for you.

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Myatus

Quiver plot without arrow stem

may help you . 'LineStyle','none' didn't work because the style applies both to the stem and to the head, so setting it to none hides both.This can be solved by digging around some undocumented properties of the Quiver object. Exploring the propertie

TAG : matlab

Date : January 02 2021, 06:48 AM , By : TheDave1022

Matlab angle function to compute phase

seems to work fine You should compute phase with atan2:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : James Cary

MATLAB Data Cursor won't click on every point of plot (R2018b)

This might help you Found the solution:In the code, this needs to be set after the plot:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Marc

Generate random movement for a point in 3D space

This might help you For such a task, you may find useful Perlin Noise or even Fractal Brownian Motion noise. See this implementation in JavaScript:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : n800s

Logical Masking in Matlab - How to (instantly) index concatenated Matlab array?

this one helps. You can use structfun to apply a function to each field of your structure. structfunis basically a hidden for loop.Example:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Yst

Is the PrincipalAxisLength measurement equivalent to the object diameter in the regionprops3 output?

it fixes the issue The documentation for the PrincipalAxisLength shape measurement describes it as (emphasis mine):

TAG : matlab

Date : January 02 2021, 06:48 AM , By : chorn

Why is my line object being registered as a double in app-designer Matlab?

Hope this helps In the past, all graphics handles were numbers. It is only since release R2014b that these are special objects. When they introduced these objects, they made sure old code could continue working. One of the consequences is that handle

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user178372

Counter in Matlab-mex code does not stop after predetermined iterations

To fix this issue printf is translated to mexPrintf, which causes the given formatted string to be displayed in the MATLAB command window. You are not using the C library printf here. mex.h declares a macro to make this translation.The MATLAB MEX int

TAG : matlab

Date : January 02 2021, 06:48 AM , By : chintown

How to generate continuous numbers with repetitive increment in matlab

help you fix your problem I would like to generate a continuous number with repetitive increment, for example,from 1 to 3. with a repetitive increment of 1 (x 5). so the output will be. , Let

TAG : matlab

Date : January 02 2021, 06:48 AM , By : shehan

Remove zeros from a matrix

will help you I have a matrix with large rows and columns as follows: , assuming A is a two dimensional matrix

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user98986

What is the colon operator doing here?

will help you I'd encourage you to take a MATLAB Tutorial as indexing arrays is a fundamental skill. Also see Basic Concepts in MATLAB. Line-by-line descriptions are below to get you started.

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Monev

Did the MATLAB R2019a mxArray header change?

this will help The mxArray header has changed in R2019a. The location of the CrossLink field in the mxArray header has moved next to the reverse CrossLink field. So, the order for R2018b and earlier is this:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Genipro

Compare two equal arrays but isequal() function return 0 in Matlab

wish of those help According to setdiff it is possible for isequal to return 0 and setdiff to return empty.

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Vijayant Singh

Matrix with dynamic dimension in matlab

I wish this help you Although the code here below works, you may consider @Sardar_Usama suggestion, working with cells. But I'm not too good with those...

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user133629

No visible points for plot in for loop

wish help you to fix your issue I'm struggling with a plot I want to make using a for-loop. , You need to specify a marker. The documentation says:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user98832

Comparing elements in each row of a matrix and count the similar values

this will help I have a matrix like this: , I would go for this:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user118656

How does the MATLAB symvar function work?

With these it helps I'm guessing you typed help symvar into the MATLAB Command Window, which is normally the best first step, but in this case you may have come across a small pitfall. This is because symvar is an overloaded function: there is more t

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Tornike

Saving array in file and then loading it in Octave? Error: struct cannot be indexed with {

To fix this issue When you load a mat-file with a single output argument, it loads the data into a struct with fields that are the names of your variables. w is a struct with field initialW after you call load.When you assign to a variable without an

TAG : matlab

Date : January 02 2021, 06:48 AM , By : barefootChild

polyfit and polyval funtions

wish help you to fix your issue Hello my question is about curve tiffing of P3(x) I write my code with using polyfit and polyval functions but I need to make it without using these functions. , Without Using syms

TAG : matlab

Date : January 02 2021, 06:48 AM , By : RyanMcG

Output a matrix size n x m, 1 when the sum of the indices is even, 0 otherwise

This might help you Great to see you're learning, step 1 in learning any programming language should be to ensure you always add relevant comments! This helps you, and anyone reading your code. So the first improvement would be this:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : eusden

Calculate integral in Matlab

Hope that helps I am given the following data: , Use the cumtrapz function in MATLAB.

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Ben

How to call a static class method from another method of the same class?

help you fix your problem Functions declared within a Methods Block are bound to their defining class (if static) or instances of the defining class (if not static). They don't have the typical Local Function scoping rules as in other contexts.Theref

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Bado

MATLAB FFT plotting

hope this fix your issue An N-point DFT of a discrete-time signal with sampling frequency fs gives frequencies 0, 1/fs, ..., (N-1)/fs. To have the zero frequency in the center of the plot you can apply fftshift to the DFT result, and then define the

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Gabe

Trouble installing Communications package in Octave 4.2

Does that help Maybe you can try to install the communications package from ubuntu's terminal with the following command.

TAG : matlab

Date : January 02 2021, 06:48 AM , By : B3CFT

Loops on a Matlab program

it should still fix some issue Note: Updated to meet the new requirements in the question...Here's a solution that avoids using EVAL:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : MJRider

What does padColor(:,:,1) mean in MatLab?

like below fixes the issue After reshaping, padColor is a 1-by-1-by-3 array. Since the size of the first two dimensions is 1, padColor(:,:,1), which means padColor("all","all",1) is equivalent to padColor(1,1,1). In other words, padColor(:,:,1) is th

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Alecsandru Soare

Matlab Error: Too many output arguments

To fix the issue you can do Did you call your function function? This is a VERY BAD idea, since function is a reserved key word.Assuming you have simply replaced the name of the function you want to call with 'function' in your example: You need to d

TAG : matlab

Date : January 02 2021, 06:48 AM , By : lonehunter01

Assigning figure size to a figure with a given handle (MATLAB)

around this issue is there a way to assign the outerposition property of a figure to a figure with a given handle? , If you capture the figure handle when you create the figure

TAG : matlab

Date : January 02 2021, 06:48 AM , By : dlouzan

skip reading headers in MATLAB

will be helpful for those in need With DLMREAD you can read only numeric data. It will not read date and time, as your first two columns contain. If other data are all numeric you can tell DLMREAD to skip first row and 2 columns on the right:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : leorick

What's the fastest way to approximate the period of data using Octave?

With these it helps Take a look at the auto correlation function.From Wikipedia

TAG : matlab

Date : January 02 2021, 06:48 AM , By : yatil

How do I remove an array dimension where the elements sum to zero?

fixed the issue. Will look into that further Here is an alternative to looping, using the function ALL and logical indexing:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user137798

Is there a function for checking whether a matrix is diagonally dominant (row dominance)

will be helpful for those in need Why loop?You can easily form the sum of absolute values in a given row.

TAG : matlab

Date : January 02 2021, 06:48 AM , By : tanminivan

mixture of expert

I hope this helps you . From what i understand about your question, you want to work with MLP's in matlab. There is a neural networks toolbox that allows you to create different kind on neural networks, including MLP's. Its really easy to use, just h

TAG : matlab

Date : January 02 2021, 06:48 AM , By : WuJanJai

SIFT algorithm in Matlab

wish helps you I'm not quite sure what you're after, but there are several MATLAB implementations of the SIFT algorithm available:http://www.vlfeat.org/

TAG : matlab

Date : January 02 2021, 06:48 AM , By : littlefuzz

Best way to organize MATLAB classes?

may help you . The new single-file style has some advantages. It allows and encourages you to write lots of small methods, which I think leads to better-factored code. The hassle of creating a new file, saving it, and adding it to source control (we

TAG : matlab

Date : January 02 2021, 06:48 AM , By : doctorbigtime

How to implement fact related to false positive vs. false negative balance in neural network?

I think the issue was by ths following , What you need is a cost-sensitive meta-classifier (a meta-classifier works with any arbitrary classifier, be it ANN, SVM, or any other).This can be done in two ways:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : jaset

MATLAB interview questions?

I wish did fix the issue. This is a bit subjective, but I'll bite... ;)For someone who is a self-professed MATLAB expert, here are some of the things that I would personally expect them to be able to illustrate in an interview:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : JSebok

Graph/tree representation and recursion

should help you out Granted, it may not be the most efficient solution, but if you have access to Matlab 2008+, you can define a node class to represent your graph.The Matlab documentation has a nice example on linked lists, which you can use as a te

TAG : matlab

Date : January 02 2021, 06:48 AM , By : user186876

Changing scaling of MATLAB Figure

this will help You have to change the x-values in your plot, or you can change the axis labels. Here is how you plot using specific x-values:

TAG : matlab

Date : January 02 2021, 06:48 AM , By : Bado

Clear persistent variables in local functions from within the main function

Hope this helps clear fname and clear functions removes the M-file from memory. The next time you run the function, it is read from disk again, parsed and compiled into bytecode. Thus, you slow down the next execution of the function.Clearing a funct

TAG : matlab

Date : January 02 2021, 06:32 AM , By : Barry