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Dave B

MathWorks

Last seen: Today Attivo dal 2020

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I am a software engineer at MathWorks. My work focuses on graphics and charting.

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Risposto
Plotting 2 x-axes against 1 y-axis
You can do something like this by creating a second axes, and in these cases it can be handy to use a tiledlayout to keep the tw...

circa 2 mesi fa | 1

| accettato

Risposto
Colormaps for plotting lines whose values vary cyclically.
You can do this using the colororder to control the coloring of lines, it has the modulo behavior built right into it. But using...

circa 2 mesi fa | 0

| accettato

Inviato


densityScatterChart
A scatter where the color (and/or transparency) of the markers indicates the density of points.

5 mesi fa | 68 download |

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Risposto
How can i change the colours of segmentation on a chart pie?
Starting in R2023b we have a new piechart which is a little easier to change colors for. Here are some demos with our built in c...

7 mesi fa | 1

Risposto
Ytick label is repeated and not alligend correclty
The reason the YTickLabel is aligned to the left is because MATLAB padded the values with spaces to make a character array. This...

7 mesi fa | 0

Risposto
How to create bar chart with x axis labels as grouped for different data
Unfortunately MATLAB doesn't have a builtin feature for creating hierarchical rulers. An alternate workaround to the one dpb lin...

8 mesi fa | 0

| accettato

Risposto
Add shared colorbar on some rows only
You can accomplish this kind of layout by nesting tiledlayouts, and leveraging the TileSpan property. Below, I create a 3 x 1 t...

8 mesi fa | 2

| accettato

Risposto
ButtonDownFcn does not work on a plot
How about if you set p3.PickableParts = 'none'? If you're clicking the part of p2 that is on top of p3, then MATLAB is probably ...

8 mesi fa | 0

| accettato

Risposto
How to shift streamslice() plot into background?
I think the issue you're running into here is this last argument you're passing into streamslice. The 1 there is causing the lin...

11 mesi fa | 2

Risposto
how to set colormap minimum and maximum for imagesc in tiledlayout
You can grab the Axes object, use gca, or use nexttile to refer to a location in the grid: tiledlayout(1,3); ax = nexttile; ...

11 mesi fa | 2

Risposto
Saving a Plot on a Figure with Transparency Ignores the Transparency
Transparency for lines isn't supported, and so the alpha channel is lost when you save and load. A workaround is to use patch, w...

circa un anno fa | 0

| accettato

Risposto
Boxplot group within group
To choose colors for your overlay, you can create multiple Scatter objects, or you can create one scatter object with multiple c...

circa un anno fa | 0

| accettato

Risposto
Plotting a circle using geoplot
Would wrapTo360 help here? lat=-42; lon=173; r=20; [latr,lonr] = scircle1(lat,lon,r); nexttile geoplot(latr,lonr,'LineWi...

circa un anno fa | 0

| accettato

Risposto
How to change the dimensions of a matrix?
You could use permute to do this, though it's maybe worth noting that you can concatenate matrices regardless of the shape (you ...

circa un anno fa | 1

Risposto
How can I list individual year from the datetime table?
The splitapply function makes this pretty easy - here the idea is to split the data by year, and then apply a function that turn...

circa un anno fa | 1

| accettato

Risposto
plot function legend is wrong.
The legend is labeling the first line in the chart rather than the last one. An easy way to specify which line should be labeled...

circa un anno fa | 0

Risposto
Force tiledlayout('flow') to layout vertically
Starting in R2023a you can use the 'horizontal' and 'vertical' tile arrangements to accomplish layouts that are dynamically size...

circa un anno fa | 1

| accettato

Risposto
How to reorder a categorical axis?
Three options to change the order, depending on where you want to change it: Option 1: You can use reordercats to re-order th...

circa un anno fa | 0

| accettato

Risposto
How do I add a colorbar to a polarscatter chart?
I think you can simplify this task by passing the data directly into scatter deggorad=pi/180; azi=[0;36;72;108;144;180;216;252...

oltre un anno fa | 0

| accettato

Risposto
Can't change xlabel font because of diacritics (č, ř, š, ...)
The error you're seeing is because of the tex interpreter, although I don't reproduce it with the same characters. If you're not...

oltre un anno fa | 0

| accettato

Risposto
Error bars for every other bar
I think what you're trying to do is put the errorbars on the first bar series? You can do this using the XEndPoints from the bar...

oltre un anno fa | 0

| accettato

Risposto
How to color the colormap with a set of hexadecimal colors?
Starting in R2020b you can use the validatecolor function to convert hex to rgb (using the 'multiple' option to convert more tha...

oltre un anno fa | 1

| accettato

Risposto
How can I write multiple number (digit) in my title?
I think what you're saying is you don't want to compute how many %d's to include and just have all the value separated by commas...

oltre un anno fa | 0

| accettato

Risposto
I'm trying to duplicate elements in the GUI, buttons to be specific.
If you're making your app in a uifigure (e.g. with app designer) you can create a button with uibutton, if you're making your ap...

oltre un anno fa | 0

Risposto
How to extract different element between two cell array?
How about using ismember combined with not (~)? X1 = {'A','B','C','D'} x2 = {'A','B','C','D','E','F','G','H'} X3 = x2(~is...

oltre un anno fa | 0

| accettato

Risposto
loop with subplot in MATLAB
The first loop creates a figure for each cell, but the next too loops don't. Did you want a figure for each cell? acceleration=...

quasi 2 anni fa | 0

| accettato

Risposto
Plotting a graph with different colors depending on different vectors
You can plot multiple vectors by either: passing them into plot as a matrix, plot will make a line for each column of the matri...

circa 2 anni fa | 0

Risposto
Geographical maps in Matlab
How about something like this? paris = [48.5 2.2 46]; london = [51.5 0.1 48]; newyork = [40.7 -74 54]; natick = [42.3 -71.3...

circa 2 anni fa | 0

Risposto
UI doesn't show buttongroups but doesn't give any error
The problem you're running into is just the order in which you set Units and Position: bg(i).bg = uibuttongroup(fig,'Title',['S...

circa 2 anni fa | 1

Risposto
error in the code
It looks like you're passing in a matrix, but I think you want to pass in a vector. Try transposing t? t=linspace(0,2,16000)'...

circa 2 anni fa | 0

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