Answered
Global struct or separate globals for callback optimization?
You should only be using global variables when you have no other option, and you almost always have. In the context of a GUI, y...
Global struct or separate globals for callback optimization?
You should only be using global variables when you have no other option, and you almost always have. In the context of a GUI, y...
1 year ago | 0
| accepted
Answered
How do I preallocate memory
A third way to do it: loop backwards. for ii = numel(hucPoly):-1:1 This also replaces the call to the length function. I...
How do I preallocate memory
A third way to do it: loop backwards. for ii = numel(hucPoly):-1:1 This also replaces the call to the length function. I...
1 year ago | 1
Answered
Big CSV file read in matlab
You can use fgetl to read a single line. Do that in a loop to retrieve 5000 lines (or something like that). Then you do whatever...
Big CSV file read in matlab
You can use fgetl to read a single line. Do that in a loop to retrieve 5000 lines (or something like that). Then you do whatever...
1 year ago | 0
Answered
save tic toc in duration style
The code below removes the cargo cult programming, removes the sprintf where you aren't actually using it to format a string, an...
save tic toc in duration style
The code below removes the cargo cult programming, removes the sprintf where you aren't actually using it to format a string, an...
1 year ago | 0
Answered
How to keep the original layout in the full screen or when maximizing the GUI of a MATLAB App ?
You should set the units to Normalized. That will scale the sizes of the buttons as you expect. There is an art to this, sinc...
How to keep the original layout in the full screen or when maximizing the GUI of a MATLAB App ?
You should set the units to Normalized. That will scale the sizes of the buttons as you expect. There is an art to this, sinc...
1 year ago | 0
| accepted
Answered
looping thru multiple line data in UIAxes plot and writing all X,Y data to an array
I would suggest a struct array. That way you can store all relevant properties and you can fairly easy recreate the line objects...
looping thru multiple line data in UIAxes plot and writing all X,Y data to an array
I would suggest a struct array. That way you can store all relevant properties and you can fairly easy recreate the line objects...
1 year ago | 0
Answered
Reading in .txt File
Your file is not a table, but is more like a struct. Usually such a file would use a JSON format, but you are not in luck. Wh...
Reading in .txt File
Your file is not a table, but is more like a struct. Usually such a file would use a JSON format, but you are not in luck. Wh...
1 year ago | 0
| accepted
Answered
How do I close an open instrument handle following an error?
You may be interested in oncleanup. When a variable goes out of scope, that function can run code. Alternatively you can put ...
How do I close an open instrument handle following an error?
You may be interested in oncleanup. When a variable goes out of scope, that function can run code. Alternatively you can put ...
1 year ago | 0
| accepted
Answered
Please help me make my code more efficient
I don't see any way to fundamentally change how your code works to speed it up, other than performing the row swaps in one call:...
Please help me make my code more efficient
I don't see any way to fundamentally change how your code works to speed it up, other than performing the row swaps in one call:...
1 year ago | 1
| accepted
Answered
How to save matrix as a "pretty print" image?
Depending on your definition of pretty, you can use my text2im function. If you use sprintf, don't forget to transpose the array...
How to save matrix as a "pretty print" image?
Depending on your definition of pretty, you can use my text2im function. If you use sprintf, don't forget to transpose the array...
1 year ago | 1
| accepted
Answered
How do I get the x and y values of the zoomed in portion of a linear plot from matlab figure?
You can use the XLim and YLim properties to find out the exact x and y ranges. Then you can use logical indexing to select the p...
How do I get the x and y values of the zoomed in portion of a linear plot from matlab figure?
You can use the XLim and YLim properties to find out the exact x and y ranges. Then you can use logical indexing to select the p...
1 year ago | 0
| accepted
Answered
cannot find downloaded files!
These download+install programs tend to download file in two locations: your downloads folder and your temp folder. I don't know...
cannot find downloaded files!
These download+install programs tend to download file in two locations: your downloads folder and your temp folder. I don't know...
1 year ago | 0
Answered
Concatenating a cell array
The assignment tells you to use a for loop. So even if it can be solved without one, let's do it. But before we can do that, we ...
Concatenating a cell array
The assignment tells you to use a for loop. So even if it can be solved without one, let's do it. But before we can do that, we ...
1 year ago | 0
| accepted
Submitted
Wayback Machine API
This functions acts as an API for the Wayback Machine (web.archive.org).
1 year ago | 2 downloads |
Answered
Evaluating function handles without writting inputs
The only way I can think of would be by wrapping the anonymous functions. x=5;y=10; f=@(x,y) x.^2+y.^2; f=@() f(x,y); phi ...
Evaluating function handles without writting inputs
The only way I can think of would be by wrapping the anonymous functions. x=5;y=10; f=@(x,y) x.^2+y.^2; f=@() f(x,y); phi ...
1 year ago | 0
Answered
Fastest way of opening a text file and converting it to a matrix?
doc fscanf If you know the format, using that knowledge always improves speed, since the more complicated tools don't need t...
Fastest way of opening a text file and converting it to a matrix?
doc fscanf If you know the format, using that knowledge always improves speed, since the more complicated tools don't need t...
1 year ago | 0
Answered
Delete part of a 4D array
Let's try something: try data=rand(4,3,5,6); data(1:2,3,:,:)=[]; catch ME warning('error: %s',ME.message) end ...
Delete part of a 4D array
Let's try something: try data=rand(4,3,5,6); data(1:2,3,:,:)=[]; catch ME warning('error: %s',ME.message) end ...
1 year ago | 0
Answered
use struct in loop for
I fully agree with Dyuman and Stephen. As to the source of the error in this code: the error message is giving you a hint. So...
use struct in loop for
I fully agree with Dyuman and Stephen. As to the source of the error in this code: the error message is giving you a hint. So...
1 year ago | 0
Answered
how to do for loop 2nd level?
Your code can be optimized, but here are the minimal changes. beam = {'A';'B';'C';'D';'E';'F';'G';'H';'I';'J';'K';'L';'M';'N';'...
how to do for loop 2nd level?
Your code can be optimized, but here are the minimal changes. beam = {'A';'B';'C';'D';'E';'F';'G';'H';'I';'J';'K';'L';'M';'N';'...
1 year ago | 0
| accepted
Answered
Store values from loop
If you want to store results from all iterations, you need to store them and not overwrite them: res1 = cell(1,100);index = 0; ...
Store values from loop
If you want to store results from all iterations, you need to store them and not overwrite them: res1 = cell(1,100);index = 0; ...
1 year ago | 0
| accepted
Answered
M-scripting tutorial
If you want to learn the Matlab basics you may consider doing the Onramp tutorial (which is provided for free by Mathworks). If...
M-scripting tutorial
If you want to learn the Matlab basics you may consider doing the Onramp tutorial (which is provided for free by Mathworks). If...
1 year ago | 0
Answered
Using string variable names for dot indexing
You're missing parentheses: varnames = {'rsrp_nr' 'sinr_nr'}; T=table(pi,2*pi,VariableName={'rsrp_nr' 'sinr_nr'}) T.(varnames...
Using string variable names for dot indexing
You're missing parentheses: varnames = {'rsrp_nr' 'sinr_nr'}; T=table(pi,2*pi,VariableName={'rsrp_nr' 'sinr_nr'}) T.(varnames...
1 year ago | 1
Answered
define function in one line
I don't know if you want to avoid anonymous functions as well, but this should give you a finer plot: % p = sin(t) when t<0.6 ...
define function in one line
I don't know if you want to avoid anonymous functions as well, but this should give you a finer plot: % p = sin(t) when t<0.6 ...
1 year ago | 0
| accepted
Answered
Clear distinction between positive and negative in colorbar
I would suggest using the top half of viridis and the bottom half of plasma (or the reverse). You can get both of them here. Th...
Clear distinction between positive and negative in colorbar
I would suggest using the top half of viridis and the bottom half of plasma (or the reverse). You can get both of them here. Th...
1 year ago | 1
Answered
how can I extract values from a struct matrix that contains only one value to make single matrix from it?
Using numbered field names is a bad idea. It is almost as bad as using numbered variable names directly. The solution is to use...
how can I extract values from a struct matrix that contains only one value to make single matrix from it?
Using numbered field names is a bad idea. It is almost as bad as using numbered variable names directly. The solution is to use...
1 year ago | 0
Answered
What to do if my script gives error "The input was too complicated or too big for MATLAB to parse"?
I know I'm almost 7 years late to the party, but I just ran into this problem and was able to find a source and solution. For m...
What to do if my script gives error "The input was too complicated or too big for MATLAB to parse"?
I know I'm almost 7 years late to the party, but I just ran into this problem and was able to find a source and solution. For m...
1 year ago | 1
Answered
I have a matrix problem to solve; A = (:,1) and B = (:,1) and C(:,1) matrixes. This I need in the tensor form like shown in the figure. How to calculate the determinant.
Use the zeros and size functions to generate the zeros row by row. Once you have the matrix you can use the det function to calc...
I have a matrix problem to solve; A = (:,1) and B = (:,1) and C(:,1) matrixes. This I need in the tensor form like shown in the figure. How to calculate the determinant.
Use the zeros and size functions to generate the zeros row by row. Once you have the matrix you can use the det function to calc...
1 year ago | 0
Answered
Coding practices to simplify complex functions
I would suggest using a struct (or Name,Value pairs) for functions with more than 4 inputs. The attached function allows parsing...
Coding practices to simplify complex functions
I would suggest using a struct (or Name,Value pairs) for functions with more than 4 inputs. The attached function allows parsing...
1 year ago | 0
Answered
I have algorithm I have estimated the data pretty well , but I 'm not able to forecast it .
As the error message is telling you, the problem is here; error('Forecast:TooFewSamples','The data should contain at least %d ...
I have algorithm I have estimated the data pretty well , but I 'm not able to forecast it .
As the error message is telling you, the problem is here; error('Forecast:TooFewSamples','The data should contain at least %d ...
1 year ago | 0
Answered
AppDesigner in headless mode (without GUI)
I'm not aware of a way to use an AppDesigner app without the app, so I doubt you will like my suggestion: You should extract th...
AppDesigner in headless mode (without GUI)
I'm not aware of a way to use an AppDesigner app without the app, so I doubt you will like my suggestion: You should extract th...
2 years ago | 2