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Luna


Last seen: 4 days ago
253 total contributions since 2018

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Answered
How to use multible lines in Edit Field with App Designer
Hi, Try to use "text area" item instead of edit field. When you get the values you can find them in a cell array. Sample: ...

7 days ago | 0

| accepted

Answered
Indices of 2D array
try this: data =[ 2 5 0 15 12 7 4 8 19 14 20 25 18 13 40 ]; reshaped_data = re...

2 months ago | 1

Answered
Custom warning message does not show when called within a function
I agree with Walter, put that code on command window to get all warnings on: warning all on; Be sure that your if statement ...

3 months ago | 0

| accepted

Question


How to zip mat files if they are less than a certain size in a folder?
Hello Dear Community, I have a folder and I have a lot of mat files in it. Each mat file contains a struct with fields: nam...

10 months ago | 1 answer | 0

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answer

Answered
how to extract specific numbers from string?
Hello Lola, You can convert to datetime object and use the properties like below: mdate = '19800101'; tmp_date = date...

10 months ago | 0

| accepted

Answered
Please how i can set the indexes of a vector or matrix in Matlab (exactly like the function set index in python)
Hello, I wrote some codes for you and I am going to share some links so that you can read in documentation and it will help. ...

10 months ago | 1

| accepted

Answered
solving Linear differential equation
Hi there! There are 2 ways of doing this. It depends on your B vector according to Ax = B equation system. Your solutions below...

10 months ago | 0

Question


How to change Heatmap's Grid (Edge) appereance and behavior?
Hi Dear Community, Today I'm dealing with a heatmap chart to make it look visually beautiful as much as possible. Here below I...

11 months ago | 1 answer | 0

1

answer

Answered
How to extract data from .mat file that contains table
Hi, Here is my answer for your question. Please read my comments near each line. table_loaded = load('C:\Users\hingec\Downl...

11 months ago | 0

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Answered
Double sum with upper limits
Maybe something like that would help: d = rand(67,120); sum_of_cos_s = 0; result = 0; for s = 1:67 for j = 1:120 ...

11 months ago | 0

Answered
Programmatically testing whether a variable is an optimoptions object
Hi, Maybe something like this helps? metaClass = metaclass(opts1); if contains(metaClass.Name,'optim.options') disp('Thi...

11 months ago | 0

Answered
Use of MatLab Licence
As far as I know if you have "Software Maintenance Service(SMS)" you can.

11 months ago | 0

Answered
MATLAB AS EXCEL ADD ON
Have you checked the below links? Create Excel Add-Ins Create an Excel App from Matlab Code

11 months ago | 0

Answered
how to find out distance between two points.
Here you can use this: NodeNumbersMatrix = [... 2 1 3 2 4 3 5 2 6 2 7 3 8 3 9 ...

11 months ago | 1

Question


How to get missing functions in Matlab 2018b about table and timetable operations?
Hello dear community! I have just realized that the functions below listed do not exist in my Matlab 2018b version with all to...

11 months ago | 1 answer | 0

1

answer

Answered
Add specific date time column to every table inside a cell
Easiest and fastest way to do it using a cellfun and converting them to a timetable. Here is one line to do it all: NewCellAr...

11 months ago | 1

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Answered
Create a plot with a drop down menu in an App
I think you don't even need to define callback functions for your dropdowns. They are already properties of your app object. B...

12 months ago | 0

| accepted

Question


How to extract event start and finish indices by finding rising edges and falling edges of an array?
Hi dear community, I have a state array doesn't matter what value inside it but for example I only want to find array == 6 as ...

1 year ago | 1 answer | 0

1

answer

Answered
Hello! How can i make a condition run many times?
Basically, it can be done as follows with a while block: some_condition_to_be_fullfilled = 0; while some_condition_to_be_fu...

1 year ago | 0

Answered
Remove or Undo GridLayout with App Designer.
Hi, Go to Canvas Tab, remove the tick on the "Show Grid" box.

1 year ago | 0

Answered
Delete entire rows based on one condition
Hi, Try this: data = num2cell(randi(5000,240,7)); % sample random data in a cell array my_Table = cell2table(data); % conver...

1 year ago | 0

Answered
How to require a custom class type with addRequired?
Variable out is not defined in the function bar. Also bar is already a built-in function. Use another function name instead.

1 year ago | 0

Answered
unable to perform assignment because the left and right sides have a different number of elements.
Hi, It is because you defined dx = 3 as 1x1 double. Your function y_dot gives 2x1 double as result. So it is not possible to c...

1 year ago | 0

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Answered
Draw vertical lines on a plot
There is a built-in function for that. For vertical lines use xline and for horizonal lines use yline. Here is sample code: ...

1 year ago | 0

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Answered
Control Design without using s ”acker , place.
Basically you can check below link and videos how a state-space model created in Simulink. state space

1 year ago | 0

Answered
Mathematical symbols in matlab
Hi, Check this: how-to-insert-latex-equation-into-static-text-plot-in-gui You should be writing in latex format.

1 year ago | 0

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Answered
How can I classify data based on two columns??
Your error caused from the line for loop. You have 19 elements but m+1 will be 20. for m = 1:length(lines)-1 ... end Th...

1 year ago | 0

Answered
Strange histogram from point cloud
Basically, you can decrease Histogram's 'BinCounts' property or increase 'BinWidth' property. You can define them with 'Name',...

1 year ago | 0

Answered
how to plot wind rose plot?
Hi, Have you tried this function from FEX? wind-rose

1 year ago | 1

Answered
Matlab coding for equation below and output as matrix
Hi, Look at this piecewise function definition: piecewise

1 year ago | 0

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