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Content Feed
Question
How to add a right hand y-axis with the same major and minor ticks?
My goal is to add two y-axis of the same major and minor ticks. Their color should all be black. Here is my current code to do ...
3 dagen ago | 1 answer | 0
1
answerQuestion
How to change Matlab display format for numbers
One thing I dislike about Matlab is the default way of displaying numbers. It would automatically divide everything by 1000 an...
ongeveer een maand ago | 1 answer | 0
1
answerQuestion
How to concatenate matrices when some of them can be empty?
I have 10 matrices, each of them would either have a size of n by 12, or is empty. For example: T1 can be a matrix with a size o...
ongeveer een maand ago | 2 answers | 0
2
answersQuestion
How do I get values of a certain parameter in a multi-dimensional matrix?
A is a variable with the size of 1000 x 500. % Index of those that are less than 10000 Ind = A < 10000; Why does the below gi...
ongeveer 2 maanden ago | 2 answers | 0
2
answersQuestion
How to convert the below colormap into a Matlab colormap?
Below is a topography colormap I got from the Generic Mapping Tools. I wonder if anyone knows how to convert this colormap into ...
3 maanden ago | 1 answer | 0
1
answerQuestion
Does the latest version of Matlab allow more than one colormaps in one plot?
In the past, overlaying two axes was the only option, but overlaying can often causes its own problems, e.g., slight offset, etc...
3 maanden ago | 1 answer | 0
1
answerQuestion
GMT colormap "geo"
Anyone knows how to extract the numerical values out of the "geo" colormap in the "Generic Mapping Toolbox"? https://gmt-tutori...
3 maanden ago | 1 answer | 0
1
answerQuestion
How to plot a map like this in Matlab?
The attached map was created using GMT based on the Earth Relief data. I wonder if anyone knows how to plot it using Matlab? Ma...
3 maanden ago | 1 answer | 0
1
answerQuestion
Is Matlab compatible with Mac OS Monterey?
I plan to upgrade my Mac OS to the latest Mac OS Montere. I wonder if that will cause any issues? I'm currently on MATLAB R20...
3 maanden ago | 1 answer | 0
1
answerQuestion
How do I identify unique rows based on multiple columns and calculate the average of the rest of the columns?
I have a matrix as below: A = [1 4 3 8; 4 5 6 9; 1 6 3 6; 2 6 9 3; 1 5 3 7]; My goal is to identify rows with both identical C...
3 maanden ago | 1 answer | 0
1
answerQuestion
How to expand a table with more columns?
I have a table T1 with a size of 30000 x 55. How do I add 6 more columns of this table: A, B, C, D, E, F, each of them have a s...
4 maanden ago | 1 answer | 0
1
answerQuestion
How to calculate the binned average at the center of each X and Y grid points?
I have a grid like the below and a 3-column data: x, y, z. [X Y] = ndgrid([-179.5:179.5], [-89.5:89.5]); How do I calculate t...
4 maanden ago | 1 answer | 0
1
answerQuestion
How to specify the color of this contourf plot?
I'm trying to plot the landmask (logical 0 or 1) using a uniform color. Below is my code: % Turning the landmask from logical t...
5 maanden ago | 1 answer | 0
1
answerQuestion
How to create a land/sea mask based on an XYZ bathymetry database?
I have a gridded global bathymetric database with X, Y, and E. X is longitude, Y is latitude, and E is the elevation. E can be p...
5 maanden ago | 1 answer | 0
1
answerQuestion
Export a plot with predefined margins
I'm using the below command to export my plot into a jpeg file: % h is the handle for the figure % File_W is my jpeg file name...
5 maanden ago | 1 answer | 0
1
answerQuestion
Creating depth specific contours from bathymetry data
The bathymetric data are available through NetCDF, Data GeoTiff and ESRI ASCII raster formats: https://www.gebco.net/data_and_pr...
5 maanden ago | 1 answer | 0
1
answerQuestion
Calculation using matrix indexing for elements with a certain thresholds
I need to calculate the percentage differences of all elements that are larger than 5 in two matrices (A and B). Both A and B ha...
5 maanden ago | 1 answer | 0
1
answerQuestion
Matlab parfor transparency violation error.
It is my first time to use Matlab parfor, and I'm getting the transparency violation error as below: Error using A02_use (line ...
6 maanden ago | 0 answers | 0
0
answersHow to write a parallel computing script for this situation?
Many thanks for the input, John! To clarify, the function is not my code. It is a peer-reviewed one from someone else. Were ...
6 maanden ago | 0
Question
How to write a parallel computing script for this situation?
I have a program that has been running for more than a week. I have no idea how many additional days it will take. Would anyone ...
6 maanden ago | 1 answer | 0
1
answerQuestion
How to read this kind of info out of a txt file and post them into Excel files?
I receive the below info from emails and would store them into an txt file named FmEmail.txt. The info is composed of several gr...
9 maanden ago | 1 answer | 0
1
answerQuestion
Need help using contourfm in Map plotting
Normally, I can use contourf to plot a countour like this: [C1, h1] = contourf (X, Y, Z, [7.9:0.005:8.2], 'LineStyle', 'none' )...
9 maanden ago | 1 answer | 0
1
answerQuestion
How to blank a grid value with a boundary file?
I have a grid like the below: [X, Y] = ndgrid([-180:0.25:179.75],[-90:0.25:89.75]); Z = griddata(...); %on the same grid as X ...
9 maanden ago | 1 answer | 0
1
answerQuestion
How to find the nearby sampling stations
I have millions of samping sations, my goal is to find the nearby stations with a certain distance threshold. What is the best w...
10 maanden ago | 1 answer | 0
1
answerQuestion
How to convert arc length to km?
My goal is to find a good function to calculate the distance for two points for millions of data points. I found the fucntion ll...
10 maanden ago | 1 answer | 0
1
answerQuestion
How to create a callback for radio buttons
I have a group of radio buttons with 3 choices (app.mode1, app.mode2, and app.mode3) in app-designer. When a user clicks one of ...
11 maanden ago | 1 answer | 0
1
answerQuestion
How to change the button names depending on different situations?
I'm referring to buttons within app-designer. For example, I would want the button to be called "load" in one situation, and "p...
11 maanden ago | 1 answer | 0
1
answerMatlab textArea automatic new line issue
It turns out that the issue are the square brackets. Once I replace them with strcat, everything works perfectly now. Before: ...
11 maanden ago | 1
| accepted
Question
Limits of app-designer spinner input field
I have an app-designer spinner input field called app.A. I can set its limits by below: app.A.Limits = [1, max(cruiseList)]; H...
11 maanden ago | 1 answer | 0
1
answerQuestion
How to find the index of a column data whose values are equal to another column data?
For example: A = [31; 2; 57; 36; 87; 36]; B = [2; 36]; My goal is to find the inex of all the column A that are equal to any ...
11 maanden ago | 1 answer | 0
