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jonas


464 total contributions since 2018

Please do not send private requests per e-mail, as I wish for my contributions to reach a broader audience. If you specifically want help from me, feel free to grab my attention by sending an email with a link to your question.

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Answered
How to make section distance of temperature
Simply skipping the loop and changing the line inmask = inpolygon(xg(:),yg(:), bx , by );%define which pixel exist in the poly...

17 jours ago | 0

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Answered
Change color outside region of polyshape
load data.mat % Gridded data in = inpolygon(X,Y,lon,lat) uvi_mean=uvi_mean'; uvi_mean(~in)=NaN; pcolor(X,Y,uvi_mean); shad...

environ 2 mois ago | 1

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Answered
display the data points to a boxplot
The boxplot is not plotted against the correct x-values. The inserted x-array is treated as the grouping variable and the ticks ...

11 mois ago | 1

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Answered
How can I convert tables to array, given that these tables contain variables with similar variable names?
It is unclear if you want to output an array or a table, but the nature of the error message suggests that you're trying to comb...

environ un an ago | 0

Answered
Converting the Domain of an Array
Read about scatteredInterpolant and post some data if you need help. Using meshgrid and griddata would probably suffice, but you...

environ un an ago | 0

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Answered
polarplot and colormap in polar coordinate
I don't know if there's a built in function for this. For scattered data you could use polarscatter(strike2(:), dip2(:), [],DPp...

environ un an ago | 0

Answered
How to plot lines instead of symbols in loop
The problem is that you are plotting one data point at a time, which means that each point gets a separate handle and is thus no...

environ un an ago | 0

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plot traveltimes axes configuration
Try this. You can set 'xtick' to [], if you want to retain only the labels. out = load('tvect.mat'); tvect = out.tvect; for i...

environ un an ago | 0

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Answered
Frustrating datetime and datestr
Not sure why you'd want to convert from datetime to datestr, but here's your solution: datestr(t,'dd-mmm-yyyy HH:MM:SS')

environ un an ago | 1

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Answered
How to get correlation for multiple columns
Why not just calculate the entire correlation matrix, and then extract the first row or col? cm = corr(X) c1n = cm(:,1) ...

environ un an ago | 0

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Answered
How to get different colours in a matrix with imagesc?
I made an attempt at fixing your code. What you describe with colors is for RGB images, to display with *imshow* not *imagesc*. ...

environ un an ago | 1

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Answered
creating an equal lateral triangle in matrix
You could do something like this: poly = polyshape([1 2 1.5],[1 1 2]) plot(poly) set(gca,'xcolor','none','ycolor','no...

environ un an ago | 1

Answered
Bound fill between two bounds, data given
Should be easy using either *fill* or *polygon*. Just make sure you close the curve by flipping one of the bounds. For example: ...

environ un an ago | 1

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Answered
Plotting points on a 2D filled contour?
Not sure I understand the question, but you should be able to do that easily by using contourf and scatter. For example, let...

environ un an ago | 0

Answered
Unique color for every plot line
Here's an example that will give you truly unique colors from a colormap of your choice. % Create 10 data series XY...

environ un an ago | 0

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Answered
How to display very clearly CT image in Mathlab?Any suggestion?
Perhaps this will solve your problem, imshow(I,[]) ↑

environ un an ago | 0

Answered
Trouble calling files using dir command
I'm not surprised it does not work. The variable DBImages should probably be assigned a string at some point prior to calling *d...

environ un an ago | 0

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Answered
Creating a Regular Delanuy Triangulation.
The triangulation is not where your problem is. Before you triangulate, you need to have a grid, which you do not. Try plotting ...

environ un an ago | 0

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Answered
how should i define condition in for loop to get the index of a vector .?
It sounds like you should learn about <https://se.mathworks.com/help/matlab/math/array-indexing.html#d120e1410 logical indexing>...

environ un an ago | 0

Answered
how can i divide a plot into ranges of different length
It's a bit unclear what you mean by the question. You could divide the set of data into segments using logical indexing. For exa...

environ un an ago | 0

Answered
Interpolating latitudes and longitudes
*lat* and *lon* are your 5-km-resolution arrays and *v* (506x270) is the variable you want to interpolate. % create finer ...

environ un an ago | 0

Answered
How to keep only the rows with a minimum value in a specific coloumn but with the same "date" value?
t = duration(A(:,1),A(:,2),A(:,3)) TT = timetable(t,A(:,end)) TT2 = retime(TT,unique(TT.t),'min') TT2 = 3×1 time...

environ un an ago | 0

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Answered
Indicating statistical significance on boxplot in matlab
It is exactly where you plotted it, why would you expect a different result? plot(mean(xt([2 3])), max(yt)*1.15, '*k') ...

environ un an ago | 0

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Answered
How to plot different data sets in Bar Horizontal Chart with different scale of X-Axes?
That axes on the bottom is just for show and lacks functionality. This line of code right here sets its height close to zero: ...

environ un an ago | 0

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Answered
Crop a circle from an image and put it on another image
You were almost there, and given the error message I think you could have figured it out :) *_"Integers can only be combined ...

environ un an ago | 0

Answered
Making a monthly mean
Use datetime with <https://se.mathworks.com/help/matlab/ref/retime.html retime> . Upload data for details.

environ un an ago | 0

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Answered
Cannot set marker edge thickness using the Linewidth property smaller than 1pt
After digging through the undocumented properties, here's how you change the marker edge thickness: LineHandle.NodeChildren...

environ un an ago | 0

Answered
How do I create a rectangular piece image that can be positioned on a game board
I would just use textboxes. For example: A = repmat([repmat([1 0],1,5);repmat([0 1],1,5)],5,1) cmap = [0 0 0;1 1 1;1 0 0...

environ un an ago | 0

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Answered
How do I create an x by y grid and how do I color each grid section?
You could use pcolor, here's a checkerboard example A = repmat([repmat([1 0],1,10);repmat([0 1],1,10)],10,1) pcolor(A) ...

environ un an ago | 0

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Answered
How can I keep the date visible at the bottom of the graph?
xticks should not be a double vector if you use datetime, it should be a datetime vector. I would expect anything else to return...

environ un an ago | 0

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