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MATLAB QUESTIONS

How to check if an axes handle is cleared or not
How to check if an axes handle is cleared or not
Hope this helps The cla function removes all child objects with visible handles by default. You can therefore check if an axes has been cleared by seeing if it has any child objects using the allchild function:
TAG : matlab
Date : November 28 2020, 04:01 AM , By : TylerD
How to select from two identical bus signals in Simulink?
How to select from two identical bus signals in Simulink?
Hope this helps I have found a way to solve this. It's not nearly the most elegant way, but it works.Since buses are handled as structures in MATLAB function blocks, I for-looped through all fields and elements to select the desired source for each e
TAG : matlab
Date : November 26 2020, 04:01 AM , By : user2187061
Colormap three colors
Colormap three colors
wish help you to fix your issue The issue is not with the colormap being wrong, but with the way the data values are mapped to the colormap. This is achieved by changing the CLim property of the underlying axes object with something symmetric with re
TAG : matlab
Date : November 23 2020, 04:01 AM , By : Alex-Claude Poon
plot3 for display three dimension data in matlab
plot3 for display three dimension data in matlab
it fixes the issue the z-axis is there, you're just looking from the top down. add view(3) to the end of your code to change the viewpoint to the default 3d viewpoint (no idea why it's not like that by default)
TAG : matlab
Date : November 23 2020, 04:01 AM , By : user2186043
How to interpolate and extrapolate non-monotonic vector data set in Matlab
How to interpolate and extrapolate non-monotonic vector data set in Matlab
this will help I have a geographically distributed data set with X-coordinate, Y-coordinate and corresponding target value of interest D. That is, my data set consists from three vectors: X, Y, D. , I found out one way using scatteredInterpolant:
TAG : matlab
Date : November 21 2020, 04:01 AM , By : user2185427
In MATLAB How to calculate a time between two dates with a custom format?
In MATLAB How to calculate a time between two dates with a custom format?
seems to work fine You can first convert the t1 and t2 char arrays to numeric format using datenum() function then you can calculate the difference between the calculated numeric dates back to the required format using datestr() function.
TAG : matlab
Date : November 19 2020, 04:01 AM , By : Bogdan Mihai
How to make a formula in a MATLAB figure on the y-axis bold along with LaTeX interpreter?
How to make a formula in a MATLAB figure on the y-axis bold along with LaTeX interpreter?
hop of those help? I am trying to make a formula in y-axis bold along with LaTeX interpreter. I've tried this but it is not bold,
TAG : matlab
Date : November 17 2020, 04:01 AM , By : Tomasz Bazan
Maltab: copy axes in a gui to a figure
Maltab: copy axes in a gui to a figure
it should still fix some issue Each subplot has its own Axes object. You can get this Axes object by writing as follow.
TAG : matlab
Date : November 17 2020, 04:01 AM , By : user2184079
how to find close value of matrix using matlab
how to find close value of matrix using matlab
This might help you Try this. The answer I get for c does not match the matrix you have given though.
TAG : matlab
Date : November 17 2020, 04:01 AM , By : user2183913
Poor performance for SVM for unbalanced dataset- how to improve?
Poor performance for SVM for unbalanced dataset- how to improve?
seems to work fine Class misclassification weights could be set instead of sample weights!You can set the class weights based on the following example.
TAG : matlab
Date : November 16 2020, 04:01 AM , By : Kholby
RGB image compression using SVD
RGB image compression using SVD
fixed the issue. Will look into that further Like @beaker indicated in their comment, nrows = size(I)(1); is not valid in Matlab (Interestingly though, it is in Octave).Combine it into a single statement, as in nrows = size(I,1).
TAG : matlab
Date : November 13 2020, 04:01 AM , By : user2182480
How to output a function with numeric inputs evaluated?
How to output a function with numeric inputs evaluated?
should help you out I am also not 100% sure if I understand your question correctly, but usually you can do something like that with the functionality of the Matlab Symbolic Toolbox. Use the syms function of this toolbox to create symbolic variables,
TAG : matlab
Date : November 13 2020, 04:01 AM , By : user2182380
What is the fastest way to compare vectors from 3D array in matlab?
What is the fastest way to compare vectors from 3D array in matlab?
it helps some times The code below will tell you how many locations have duplicate z-data vectors. The idea is to reshape your data in to a 2D matrix where each row represents a single column of z-data from the original matrix. The reshaped matrix wi
TAG : matlab
Date : November 12 2020, 04:01 AM , By : Zohaeb
Matlab fprintf output is not appearing in command window with no error?
Matlab fprintf output is not appearing in command window with no error?
hop of those help? Essentially you're using the fprintf function wrong, it isn't designed to concatenate strings. You can use [ ] brackets, strcat, or strjoin for that.Rather than try and work out why you've written it how you have, here is the corre
TAG : matlab
Date : November 12 2020, 04:01 AM , By : Sachin
Izhikevich Neuron model - equations
Izhikevich Neuron model - equations
I wish did fix the issue. 1) question 1: go from set 2 to set 1:1.1) create a new variable V:
TAG : matlab
Date : November 11 2020, 04:01 AM , By : zubarets
Keeping whitespace in csv headers (Matlab)
Keeping whitespace in csv headers (Matlab)
With these it helps You can simply read the first line with fgetl, thus grabbing the headers, before reading the entire file with readtable.
TAG : matlab
Date : November 09 2020, 04:01 AM , By : user2181141
Get legend right with stacked bar plot
Get legend right with stacked bar plot
I hope this helps . As a quick workaround, you could set each bar object's DisplayName after creation. See this solution which builds on your example:The issue you're having is that the stacked bar creates a Bar array (in this case 1x2). You can't se
TAG : matlab
Date : November 08 2020, 04:01 AM , By : yoyo
'No supported GPU device was found on this computer' Matlab R2018a?
'No supported GPU device was found on this computer' Matlab R2018a?
I wish this helpful for you Finally Got this. As sgarizvi suggested that Matlab 2018a does not support Fermi architecture as given here. I found that my GPU Geforce GT 730 has Fermi architecture. So it is not supported by Matlab 2018a.
TAG : matlab
Date : November 05 2020, 04:01 AM , By : LiliLipa
Calculate the contact length between segments of image in Matlab
Calculate the contact length between segments of image in Matlab
help you fix your problem Here is the final code that I eventual wrote. The results look correct.
TAG : matlab
Date : November 04 2020, 04:01 AM , By : user2179253
How to add legend elements in Matlab in the plot itself
How to add legend elements in Matlab in the plot itself
I wish did fix the issue. I think you probably want to use text objects instead of a legend. Here's an example (note that I had to use datetick instead of dateaxis because I don't have the Financial Toolbox):
TAG : matlab
Date : November 02 2020, 04:01 AM , By : user2178574
Using streamslice/quiver and inpolygon crop
Using streamslice/quiver and inpolygon crop
fixed the issue. Will look into that further Here's some sample code which I think will generate the kind of plot you want. It uses inpolygon to "filter" out the points inside the polygon. The vector field is still evaluated at the original meshgrid
TAG : matlab
Date : November 02 2020, 04:01 AM , By : user2178561
How to best set date axis in Matlab
How to best set date axis in Matlab
I think the issue was by ths following , This code labels the plot with the first day of every month. To get every January or July, only certain elements of the month array should be selected. The strategy is to get every last day of the month using
TAG : matlab
Date : October 29 2020, 05:01 AM , By : user2177280
Finding a certain value below the maxima in Matlab
Finding a certain value below the maxima in Matlab
wish help you to fix your issue I have 2 800x1 arrays in Matlab which contain my amplitude vs. frequency data, one array contains the magnitude, the other contains the corresponding values for frequency. I want to find the frequency at which the ampl
TAG : matlab
Date : October 27 2020, 03:37 PM , By : user3848006
In MATLAB, How I can run multiple files .m (M-file) automatically?
In MATLAB, How I can run multiple files .m (M-file) automatically?
help you fix your problem Make another M-file and put all of the names of your 20 existing M-files in that.If you want them to run on startup, put them in startup.m in the startup directory (see doc startup).
TAG : matlab
Date : October 27 2020, 03:37 PM , By : user3847959
how to Display data in matrix with with more than 4 decimals
how to Display data in matrix with with more than 4 decimals
Hope this helps He, , type at the matlab prompt:
TAG : matlab
Date : October 26 2020, 11:52 AM , By : lukejkw
Maximum array size in MATLAB?
Maximum array size in MATLAB?
will be helpful for those in need Take a look at this page, it lists the maximum sizes: Max sizesIt looks to be on the order of a few hundred million. Note that the matrix you're trying to create here is: 10e6 * 10e6 = 10e12 elements. This is many or
TAG : matlab
Date : October 23 2020, 03:00 PM , By : Erik Ramalho
Reducing Mean Square Error
Reducing Mean Square Error
With these it helps I don't understand exactly what you want, but I will try my best.First, as far as I know, there is no command to reduce the mse. I hope the following explanation helps you understand it better.
TAG : matlab
Date : October 21 2020, 11:12 AM , By : Mr. H
What do I have to add at the beginning of this loop?
What do I have to add at the beginning of this loop?
it helps some times You can avoid constructing the filenames by using the DIR command. For instance:
TAG : matlab
Date : October 21 2020, 11:12 AM , By : nathanPease
Matlab Error: ??? Cell contents reference from a non-cell array object
Matlab Error: ??? Cell contents reference from a non-cell array object
I wish this helpful for you You are trying to piece together a solution without thinking about what you are doing.You need to look and understand what dir returns.
TAG : matlab
Date : October 20 2020, 11:12 PM , By : user3850071
MATLAB combining edge region back into image
MATLAB combining edge region back into image
Any of those help Try the imoverlay function on the MATLAB Central File Exchange. Here's a sample output image:
TAG : matlab
Date : October 19 2020, 11:12 PM , By : user3850467
To find points of intersection between straight lines & our figure in matlab
To find points of intersection between straight lines & our figure in matlab
I hope this helps you . There is great submission on MATLAB Central File Exchange to find curves intersections:Fast and Robust Curve Intersections
TAG : matlab
Date : October 15 2020, 11:12 AM , By : Josh Pass
How to use a cross validation test with MATLAB?
How to use a cross validation test with MATLAB?
To fix this issue In Statistics Toolbox there is CROSSVAL function, which performs 10-fold cross validation by default. Check it out.Another function CROSSVALIND exists in Bioinformatics Toolbox.
TAG : matlab
Date : October 14 2020, 11:12 PM , By : msashleychen
Loading multiple images in MATLAB
Loading multiple images in MATLAB
I wish did fix the issue. If you know the name of the directory they are in, or if you cd to that directory, then use dir to get the list of image names.Now it is simply a for loop to load in the images. Store the images in a cell array. For example.
TAG : matlab
Date : October 14 2020, 01:07 PM , By : alsaihn
how to convert the spectrogram into an image
how to convert the spectrogram into an image
wish help you to fix your issue If I understand this correctly, and if the spectrogram was built over non-overlapping "sliding windows", you can then simply do the inverse FFT for each time chunk and combine them to recover the audio signal. Then you
TAG : matlab
Date : October 14 2020, 12:44 PM , By : William de Paula
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