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MATLAB QUESTIONS

Close Stateflow editor programmatically
Close Stateflow editor programmatically
it fixes the issue There actually is a Matlab command called sfclose which allows to close a Stateflow chart.Without arguments the currently active chart is closed. To close a specific chart, its name has to be passed. The name consists of the full p
TAG : matlab
Date : November 24 2020, 11:01 PM , By : Andrew
Give certain values specific color in matrix with imagesc
Give certain values specific color in matrix with imagesc
seems to work fine Colormap in matlab allows you to set a color for an indexed image (in your case you only have 2 indexes - 0,1 which is usually interperted as black and white). MATLAB has some predefine settings as you mentioned winter,summer, hot,
TAG : matlab
Date : November 23 2020, 11:01 PM , By : Srinidhi Reddy
Matlab: can not simplify a symbolic scalar function use subs() in a simple case
Matlab: can not simplify a symbolic scalar function use subs() in a simple case
I wish this helpful for you The Symbolic Toolbox operates from the standpoint that Symbolic Variables are scalars and any operation or expression in which they are present uses element-wise semantics. As states in the subs documentation:
TAG : matlab
Date : November 22 2020, 11:00 PM , By : Huy Thanh Nguyễn
Calculating Cross Correlation
Calculating Cross Correlation
around this issue I am trying to calculate cross-correlation between two signals in time and frequency domain.I got a different result for both cases. , This is caused by aliasing. Please try below code.
TAG : matlab
Date : November 21 2020, 11:01 PM , By : Rafa Ballesteros
MATLAB copyobj reverses the order of objects?
MATLAB copyobj reverses the order of objects?
wish of those help copyobj copies the objects in the reverse order. To get the correct order, use copyobj(lines(end:-1:1), a); or copyobj(fliplr(lines), a); instead of copyobj(lines, a);
TAG : matlab
Date : November 20 2020, 11:01 PM , By : Arjun lakshmikanth
matlab using evalin in parfor
matlab using evalin in parfor
will help you evalin and parfor don't mix. Even if you run parfor with a local pool, you want to think of the workers that run the loop iterations as completely separate processes. In other words, they have no visibility of your base workspace at all
TAG : matlab
Date : November 16 2020, 11:00 PM , By : Paul McLain
How to show a zoomed part of a graph within a MATLAB plot?
How to show a zoomed part of a graph within a MATLAB plot?
fixed the issue. Will look into that further Here is a suggestion how to do this with MATLAB. It may need some fine tuning, but it will give you the result:
TAG : matlab
Date : November 15 2020, 11:01 PM , By : Sandra Perez
Matlab replace value with zero from matrix
Matlab replace value with zero from matrix
I hope this helps . Use ismember to obtain a logical mask of values of A that are in B, and then use that as a logical index to make those entries zero:
TAG : matlab
Date : November 14 2020, 11:01 PM , By : Deepu Roy
Matlab Vectorized implementation of sequence of dates and times, using a vector of dates
Matlab Vectorized implementation of sequence of dates and times, using a vector of dates
like below fixes the issue I you want performance, I would invite you to consider using datenum if you have large number of operations to do on date/time. in this format, each time/date is only a simple number, which allow for faster computation than
TAG : matlab
Date : November 14 2020, 11:01 PM , By : Boysenberry Payne
Vectorize plotting multiple lines with different colors in MATLAB?
Vectorize plotting multiple lines with different colors in MATLAB?
I wish did fix the issue. This is probably too hacky to be a useful replacement of the loop, but here it goes:
TAG : matlab
Date : November 14 2020, 11:01 PM , By : Archana Singh
Speed up coloring segments of a spline curve?
Speed up coloring segments of a spline curve?
this one helps. No explicit benchmarks per se, but you can vectorise this easily bya. collecting the plotted points and dividing them into 'segments' (e.g. using the buffer function)
TAG : matlab
Date : November 14 2020, 11:01 PM , By : Jerry Oyler
SVM matlab example
SVM matlab example
wish of those help SVM's are typically one vs one or one vs all classifiers. However there exist ways to tweak them to achieve multiclass classification. This package implements one such way.
TAG : matlab
Date : November 12 2020, 11:01 PM , By : Abhay Parihar
Interfacing my MATLAB R2013a with Arduino
Interfacing my MATLAB R2013a with Arduino
this will help These won't work because MATLAB 2013a doesn't have these code (arduino()) in its library, to interface you need to upgrade MATLAB 2013a to MATLAB 2015a for interfacing.
TAG : matlab
Date : November 09 2020, 11:01 PM , By : Jack094
MATLAB: Find all values on one date, then filter down to an hour and find average
MATLAB: Find all values on one date, then filter down to an hour and find average
This might help you Assuming your data is in a matrix or cell-array of strings called A, and your other data is in a vector X. Let's say all the data is in the same year (so we can ignore years)
TAG : matlab
Date : November 09 2020, 11:01 PM , By : harry man
MATLAB / SIMULINK: Simulate filling and emptying of a river
MATLAB / SIMULINK: Simulate filling and emptying of a river
will help you There are several ways this could be done, one of which is to use enabled subsystems to process the raining and not raining phases. You'd need to change the contents of the 2 subsystems below to reflect your exact height profile in the
TAG : matlab
Date : November 07 2020, 11:01 PM , By : Cole Pierce
How to plot several function calls in one figure
How to plot several function calls in one figure
I hope this helps you . The problem here is exist cannot see the previous figure, because it's handle is deleted when the previous call to the function was ended. My suggestion is as follow:Pass the figure handle to the function, and also return it a
TAG : matlab
Date : November 06 2020, 11:01 PM , By : Mehmet Nuri ELMA
MATLAB - concatenation of 3rd matrix dimension
MATLAB - concatenation of 3rd matrix dimension
wish helps you Eskapp is on the right track. First use permute to swap the second and third dimensions so that you get a K x Z x N matrix. Once you do that, you can use reshape to unroll the matrix so that you take each 2D slice of size K x Z and tra
TAG : matlab
Date : November 03 2020, 11:01 PM , By : Jay Ahn
How do I add documentation to a matlab package?
How do I add documentation to a matlab package?
To fix this issue Per MATLAB's toolbox distribution documentation, the MATLAB analog to Python's __init__.py docstring would be a help summary file.Using the above folder structure, we can add a contents.m file to achieve the desired behavior:
TAG : matlab
Date : November 01 2020, 01:04 PM , By : mia koritala
Storing/passing semi-large data in GUIDE, Matlab
Storing/passing semi-large data in GUIDE, Matlab
wish of those help to make this work in both r2014a and r2016b you have two options:Make r2014a work like r2016b:
TAG : matlab
Date : October 31 2020, 09:54 AM , By : Rish
Why doesn't Matlab `fopen` throw an exception?
Why doesn't Matlab `fopen` throw an exception?
I hope this helps . Why doesn't fopen throw an exception when the filename or path doesn't exist? , It's not designed to throw an exception, as the documentation states:
TAG : matlab
Date : October 31 2020, 12:01 AM , By : user6056986
Why does Matlab dbf-reader read certain integers wrong?
Why does Matlab dbf-reader read certain integers wrong?
help you fix your problem Have you used the updated version of STR2DOUBLE2CELL?From the link above:
TAG : matlab
Date : October 30 2020, 12:01 AM , By : sameer khole
How to multiply a frequency in histogram by scalar
How to multiply a frequency in histogram by scalar
I wish this helpful for you The documentation clearly explains how to replicate the behavior of hist with histogram.For example:
TAG : matlab
Date : October 25 2020, 04:08 PM , By : Alex hou
How to generate accurate FFT plot of guitar harmonics with only 256 data points @ 44.1khz Fs ?[Matlab]
How to generate accurate FFT plot of guitar harmonics with only 256 data points @ 44.1khz Fs ?[Matlab]
wish help you to fix your issue You can't. (at least reliably for all notes in a guitar's range).256 samples at 44.1kHz is less than one period of most low string guitar notes. One period of vibration from a guitar's open low E string takes around 53
TAG : matlab
Date : October 24 2020, 03:08 PM , By : john chen
Normalize each slice of a 3D matrix
Normalize each slice of a 3D matrix
To fix the issue you can do We need to find the minimum and maximum values for each of those 2D slices and then we can use bsxfun to do those operations in a vectorized manner with help from permute to let the singleton dims align properly to let bsx
TAG : matlab
Date : October 24 2020, 03:08 PM , By : pistikov
Fast alternative to find out locations of an array using ismember in MATLAB
Fast alternative to find out locations of an array using ismember in MATLAB
wish helps you If you step back and look at the information you're getting from the intermediate results of ismember, you've already got the indices of the correct locations:Variable values just before the ismember lines:
TAG : matlab
Date : October 24 2020, 01:08 AM , By : Espen R. Berentsen
How to return answers from Matlab function in form of Symbols
How to return answers from Matlab function in form of Symbols
Hope that helps I am trying to return an answer from Matlab in form of a symbolic variable. I created the following code and function to illustrate the error I am receiving: , You're initialising a numerical matrix using
TAG : matlab
Date : October 22 2020, 03:08 PM , By : Wharley Ornelas
using imfuse in Matlab to alpha blend grayscale images
using imfuse in Matlab to alpha blend grayscale images
Does that help I'm trying to overlay 2 gray scale images in Matlab using the imfuse function. In the "overlap" region, I'd like to take 50% of image A and 50% of image B. What I'm getting instead is the sum of A and B in the overlap region. This code
TAG : matlab
Date : October 21 2020, 01:08 AM , By : Francesco Camera
How can I divide an interval into increasing/decreasing chirp-like lengths (MatlabR2014b)?
How can I divide an interval into increasing/decreasing chirp-like lengths (MatlabR2014b)?
wish help you to fix your issue Your requirement that each interval has to be larger than the last makes it a little open-ended, since there are a number of different ways to satisfy that constraint. One option is to make each interval be a fixed inc
TAG : matlab
Date : October 19 2020, 01:08 AM , By : zubair shaikh
filling a zero matrix corresponding to row and column numbers
filling a zero matrix corresponding to row and column numbers
hope this fix your issue As Sardar pointed out matrix indexing is in the documentation. The specific command you will need is sub2ind documented here. This converts row, column subscript pairs into linear indices. Step 1 get linear index of the row/c
TAG : matlab
Date : October 18 2020, 01:08 AM , By : Murtaza Ahmed
Pick a random one among every N elements in a vector
Pick a random one among every N elements in a vector
Does that help Say if I have a vector of [1 2 3 4 5 6 7 8 9 10], I want to pick a random number of every three element of the vector, so the resulting vector could be [1 4 9 10] or [2 4 8 10] etc. , Here's one vectorized approach making use of linear
TAG : matlab
Date : October 15 2020, 03:08 PM , By : Nate
Why I got a big MSE when I try to verify convolution theorem in matlab?
Why I got a big MSE when I try to verify convolution theorem in matlab?
it helps some times There are indeed problems with your implementation of the second part. The most important rule to remember when implementing convolution via fft is that you are actually calculating a circular convolution, not a linear convolution
TAG : matlab
Date : October 14 2020, 09:39 AM , By : Joshue Henry
matlab find() indices of cells for particle, 4-D double
matlab find() indices of cells for particle, 4-D double
will help you I have the following problem. , An example code to my comment
TAG : matlab
Date : October 14 2020, 09:34 AM , By : Elly Conley
Any Machine Learning Toolbox in Matlab that are Computationally Effective?
Any Machine Learning Toolbox in Matlab that are Computationally Effective?
this will help Sorry i don't know a lot on Matlab toolbox, but I can maybe help you on machine learning on a more general way. Do you need only a faster algorithm or better performing overall ?Kind of a beginner too, but i'd say it really depends if
TAG : matlab
Date : October 14 2020, 09:27 AM , By : Tomasz
How to change the Value of a struct with a function in Matlab?
How to change the Value of a struct with a function in Matlab?
Any of those help I'am not sure to totally understand your question, but if you want to update a parameter in a structure, you have to pass the structure to update as argument of your function.Moreover, if prop is the parameter, you should use an dyn
TAG : matlab
Date : October 14 2020, 09:27 AM , By : Marco
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