Answered
Computing Euclidean distance between 2 points
By doing a matrix multiplication on a vector, you implicitly take the sum over all elements. Note that this will only work if b...
Computing Euclidean distance between 2 points
By doing a matrix multiplication on a vector, you implicitly take the sum over all elements. Note that this will only work if b...
3 years ago | 1
| accepted
Answered
Multiplying each cell in an array by a column vector
You should use a loop. That makes it a lot easier to write the indexing you need, and it will be faster. Matrix operations are ...
Multiplying each cell in an array by a column vector
You should use a loop. That makes it a lot easier to write the indexing you need, and it will be faster. Matrix operations are ...
3 years ago | 0
| accepted
Answered
how to count the number of lines of an external txt file
The problem with your question is that it lacks a definition of line. If your file ends with char(10) or char(13) does that sign...
how to count the number of lines of an external txt file
The problem with your question is that it lacks a definition of line. If your file ends with char(10) or char(13) does that sign...
3 years ago | 0
Answered
Matlab GUI - storing real time data
For general advice and examples for how to create a GUI (and avoid using GUIDE), have look at this thread. Using GUIDE is a bad ...
Matlab GUI - storing real time data
For general advice and examples for how to create a GUI (and avoid using GUIDE), have look at this thread. Using GUIDE is a bad ...
3 years ago | 0
| accepted
Answered
Create a GUI interface in MATLAB for simple image functions like reading and displaying??
For general advice and examples for how to create a GUI (and avoid using GUIDE), have look at this thread.
Create a GUI interface in MATLAB for simple image functions like reading and displaying??
For general advice and examples for how to create a GUI (and avoid using GUIDE), have look at this thread.
3 years ago | 0
Answered
Creating an active graph that allows variables to be updated in real time.
Plot once, and use the callback function of a slider to set the XData and YData properties of that object. Don't forget to ro...
Creating an active graph that allows variables to be updated in real time.
Plot once, and use the callback function of a slider to set the XData and YData properties of that object. Don't forget to ro...
4 years ago | 1
Answered
Shading with vertical lines
I have put some inefficient code at the start to integrate over y so you end up with a function of x alone. I then used the same...
Shading with vertical lines
I have put some inefficient code at the start to integrate over y so you end up with a function of x alone. I then used the same...
4 years ago | 0
| accepted
Answered
Using function in a serial code
If you insert the body of this function in a different function, you essentially convert this into a script. The downside of a ...
Using function in a serial code
If you insert the body of this function in a different function, you essentially convert this into a script. The downside of a ...
4 years ago | 0
| accepted
Answered
How do I have my variable output be uniform?
Arrays in Matlab must be rectangular. The image you show does not show how the data is stored, it is merely a display. For longe...
How do I have my variable output be uniform?
Arrays in Matlab must be rectangular. The image you show does not show how the data is stored, it is merely a display. For longe...
4 years ago | 0
Submitted
isnetavl
Check for an internet connection by pinging one of Google's DNSes
4 years ago | 1 download |
Answered
Continuously pressing GUI slider arrow causes hanging
I would suggest setting a flag (and storing it in the guidata struct). That way you can immediately exit the function if it is a...
Continuously pressing GUI slider arrow causes hanging
I would suggest setting a flag (and storing it in the guidata struct). That way you can immediately exit the function if it is a...
4 years ago | 0
| accepted
Answered
Reset Button in appdesigner
You should be able to adapt my answer <https://www.mathworks.com/matlabcentral/answers/502084-pass-input-data-obtained-from-gui-...
Reset Button in appdesigner
You should be able to adapt my answer <https://www.mathworks.com/matlabcentral/answers/502084-pass-input-data-obtained-from-gui-...
4 years ago | 0
Answered
How to make a function file that displays a polynomial and accepts a specific command?
Why do you want to call your function like that? lou(a, b, c) will already work. Anyway: function lou(a,b,c) if nargin=...
How to make a function file that displays a polynomial and accepts a specific command?
Why do you want to call your function like that? lou(a, b, c) will already work. Anyway: function lou(a,b,c) if nargin=...
4 years ago | 0
| accepted
Answered
Why does following code don't give any output?
Because the number 3 doesn't exist in your array: data=0.1:0.1:12; [~,ind]=min(abs(data-3)); data(ind) Now, that looks like ...
Why does following code don't give any output?
Because the number 3 doesn't exist in your array: data=0.1:0.1:12; [~,ind]=min(abs(data-3)); data(ind) Now, that looks like ...
4 years ago | 0
| accepted
Answered
Installing a loop for more efficient script
If there is no way to determine these values, you will have to hard-code them somewhere. So you might as well do it in a cell ar...
Installing a loop for more efficient script
If there is no way to determine these values, you will have to hard-code them somewhere. So you might as well do it in a cell ar...
4 years ago | 0
| accepted
Answered
Extract data for 3d plated grave
Let's first run your code: figure(1) r=3; th=0:180/30:360; Lgt=length(th); for height=0:4:20; x=r*cos(th); y=r*si...
Extract data for 3d plated grave
Let's first run your code: figure(1) r=3; th=0:180/30:360; Lgt=length(th); for height=0:4:20; x=r*cos(th); y=r*si...
4 years ago | 1
Answered
what are the following C datatypes Equivalents in Matlab
Integer names in Matlab are much more clear than in C: uint8 uint16 uint32 uint64 int8 int16 int32 int64. The ones starting with...
what are the following C datatypes Equivalents in Matlab
Integer names in Matlab are much more clear than in C: uint8 uint16 uint32 uint64 int8 int16 int32 int64. The ones starting with...
4 years ago | 0
| accepted
Answered
Trying to convert whole folder into spectrograms
You are inserting all files at once, instead of indexing into the filelist array. If you want want to store an image you need...
Trying to convert whole folder into spectrograms
You are inserting all files at once, instead of indexing into the filelist array. If you want want to store an image you need...
4 years ago | 0
Answered
find the minmum value in each column of a matrix
If you set all values of 0 to NaN, you can do this simply with the min function. A=[ 0 10.1164 0 0 ...
find the minmum value in each column of a matrix
If you set all values of 0 to NaN, you can do this simply with the min function. A=[ 0 10.1164 0 0 ...
4 years ago | 0
| accepted
Answered
Problem with for loop and polyfit
Replace numbered variables with arrays. outLoop = 2; filter = (x1>3); x2 = x1(filter); for r = 1 : numel(outLoop) r...
Problem with for loop and polyfit
Replace numbered variables with arrays. outLoop = 2; filter = (x1>3); x2 = x1(filter); for r = 1 : numel(outLoop) r...
4 years ago | 1
| accepted
Answered
How to publish current m file output ONLY to pdf via inline code? (AKA, not via the Export function)
The code below works for me. options = struct('format','pdf','outputDir',pwd,'showCode',false,... 'codeToEvaluate',[func2s...
How to publish current m file output ONLY to pdf via inline code? (AKA, not via the Export function)
The code below works for me. options = struct('format','pdf','outputDir',pwd,'showCode',false,... 'codeToEvaluate',[func2s...
4 years ago | 0
Answered
How to write the code for Appdesigner for when a user inputs the data and then store in a variable, inorder to use that value for a later caluclation?
Short answer: yes. If you want to use it in another function you might want to store it in a property (app.SomePropertyYouNeedTo...
How to write the code for Appdesigner for when a user inputs the data and then store in a variable, inorder to use that value for a later caluclation?
Short answer: yes. If you want to use it in another function you might want to store it in a property (app.SomePropertyYouNeedTo...
4 years ago | 0
Answered
The variable 'counter' is perhaps intended as a reduction variable, but is actually an uninitialized temporary.
Your loop depends on the previous iterations. You should calculate the value of the counter variable inside the loop. Otherwise ...
The variable 'counter' is perhaps intended as a reduction variable, but is actually an uninitialized temporary.
Your loop depends on the previous iterations. You should calculate the value of the counter variable inside the loop. Otherwise ...
4 years ago | 0
| accepted
Answered
Problem in legend plot in case of empty variable [ ]
I am going to assume your numbered variables are just to make this example easy to understand. If not: you should consider index...
Problem in legend plot in case of empty variable [ ]
I am going to assume your numbered variables are just to make this example easy to understand. If not: you should consider index...
4 years ago | 0
Answered
Removing repeated in order elements from array?
No need for a loop (even if you should have replaced length by numel): data=[ 1 1 1 2 2 3 3 3 1 1 1 2 2 4 4 4 5 5 6]; L=diff(d...
Removing repeated in order elements from array?
No need for a loop (even if you should have replaced length by numel): data=[ 1 1 1 2 2 3 3 3 1 1 1 2 2 4 4 4 5 5 6]; L=diff(d...
4 years ago | 0
Answered
Is cell2mat supposed to support non-plaid cell partitioning? If not, why not?
This doesn't answer your actual question, but below is code that should work on all combinations of non-plaid partitions. Some o...
Is cell2mat supposed to support non-plaid cell partitioning? If not, why not?
This doesn't answer your actual question, but below is code that should work on all combinations of non-plaid partitions. Some o...
4 years ago | 1
Answered
How can I extract 2d slices images for all the CT volumes in a folder?
Your file name is based on slice (which contains the number of slices, not the slice number), instead of n and k. If all scans h...
How can I extract 2d slices images for all the CT volumes in a folder?
Your file name is based on slice (which contains the number of slices, not the slice number), instead of n and k. If all scans h...
4 years ago | 0
| accepted
Answered
How do you append a vector to another vector within a loop?
The efficient way is not to do that. Use indexing instead. If the vectors are not equal length you can put them in a cell array ...
How do you append a vector to another vector within a loop?
The efficient way is not to do that. Use indexing instead. If the vectors are not equal length you can put them in a cell array ...
4 years ago | 0
| accepted
Answered
Error executing .fig file during GUI creation
For general advice and examples for how to create a GUI (and avoid using GUIDE), have look at this thread. I would strongly rec...
Error executing .fig file during GUI creation
For general advice and examples for how to create a GUI (and avoid using GUIDE), have look at this thread. I would strongly rec...
4 years ago | 0
| accepted
Answered
Will running MATLAB from an external hard drive work?
In my experience Matlab will run fine on removable media. If boot times are important to you, make sure you get a fast drive and...
Will running MATLAB from an external hard drive work?
In my experience Matlab will run fine on removable media. If boot times are important to you, make sure you get a fast drive and...
4 years ago | 0