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Dave B

MathWorks

Last seen: Today |  Active since 2020

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

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Answered
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...

ungefär 17 timmar ago | 0

Answered
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...

4 dagar ago | 1

Answered
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...

7 dagar ago | 0

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Answered
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...

2 månader ago | 0

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Answered
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...

3 månader ago | 0

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Answered
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...

3 månader ago | 0

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Answered
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...

3 månader ago | 1

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Answered
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...

7 månader ago | 0

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Answered
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...

8 månader ago | 0

Answered
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...

8 månader ago | 0

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Answered
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=...

10 månader ago | 0

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Answered
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...

11 månader ago | 0

Answered
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...

12 månader ago | 0

Answered
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...

12 månader ago | 1

Answered
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)'...

12 månader ago | 0

Answered
Converting text to datetime stamp in Data Table
It's a little difficult to understand exactly what's in TMX2DataFile3TCs25through48 from the code, I think the dates you pasted ...

12 månader ago | 0

Answered
I want to have specific values on y-axis of the plot.
To set the y tick values, you can use the YTick property on the Axes. You can use gca and set to apply these to the current axes...

12 månader ago | 1

Answered
need help for adding a error bar
I think the problem you ran into was that you were calling errorbar with 4x4 matrices for x and y, and 1x12 vectors for yneg and...

12 månader ago | 0

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Answered
Combining two surfaces from two files into one surface plot
Do you mean two different .fig files? You can generally find objects that live in an axes with findobj, which is good for look...

12 månader ago | 0

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Answered
Data overlapping when plotting stacked bar graphs
The data aren't overlapping, you're simply seeing the effect of a log scale, which is a little strange for a stacked bar. The va...

12 månader ago | 0

Answered
Aligning axes labels in 3D plots
The differrence between your labels and the axes is because MATLAB stretches an axes to fill the space of its container - if you...

12 månader ago | 2

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Answered
how to display/table numbers and letters
I think this is what you're trying to produce? z=[1;2;3;4;5;6]; Gz = nan(size(z)); Gz(z<4) = log(10./(4-z(z<4))); Gz(z==4)...

12 månader ago | 0

Answered
how to copy a figure with a figure inside it using Matlab?
I think you just copied the small axes into the same position, making them into big axes (and putting them on top). In other wor...

12 månader ago | 0

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Answered
How to plot z component as a colorbar with lines connecting scatter plot points?
I think what you're asking for is a color gradient on the line? Unfortunately lines don't have color gradients. A common workaro...

12 månader ago | 0

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Answered
change color for specifics bars
I didn't fully understand your explanation of which colors you want where, but really all you have to do is set CData as you lik...

12 månader ago | 0

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Answered
plot of y = 2.*(x.^4 - x.^2) isn't right
I'm pretty sure that's correct, were you expecting to see more of a w-like shape? You might have to zoom in a bit for that (and ...

12 månader ago | 2

Answered
Separate y & x axis
There are some submissions on file exchange for this, like this one: https://www.mathworks.com/matlabcentral/fileexchange/57366-...

12 månader ago | 0

Answered
Colours of a Histogram
If you're specifying the counts, could you use bar instead of histogram? bar has a CData property for this purpose. The limits w...

12 månader ago | 0

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Answered
Opening multiple figures from directory and extracting X and Y data simultaneously
@Daynah Rodriguez: The problem that jumps out in this code is: ii = find(0.7 < y < 1.0,1); This makes sense mathematicall...

12 månader ago | 0

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Answered
How do I use tiledlayout when each plot is made within a subroutine?
You're seeing the error because when tiledlayout is in charge of positioning axes, it doesn't let you do it. It looks to me lik...

12 månader ago | 1

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