Community Profile

Kelly Kearney

University of Washington/NOAA Alaska Fisheries Science Center

618 total contributions since 2006

Professional Interests: ocean biogeochemistry, ecosystem modeling

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Colour plot vs Time on a circle
It's not clear to me whether you've already created the circle plots in Matlab, or if you just sketched out your desire outcome....

2 dagen ago | 1

Contourf is plotting weird lines. How to remove them?
When you let contour choose contour levels automatically, it doesn't always choose the levels you really want. In this case, it...

6 dagen ago | 3

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How can I make following part of code without for loop?
I'm having a hard time finding a solution that's faster than the original loop... % Build test data n_values = 10000; nc =...

15 dagen ago | 0

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how to get the value in julian date and time
Can you explain what you're defining as "Julian date"? While the 4714 BCE reference date is the proper one for a real Julian da...

21 dagen ago | 1

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change y values in figure to names
You need to calculate where each month falls, in terms of hours: ttk = datetime(2019,1:13,1); set(gca, 'xtick', hours(ttk-da...

22 dagen ago | 3

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Is it possible to bring "grid on" to the front of a figure?
By default, all plotted objects are rendered on top of the axis (including axis lines, grid lines, etc). You can reverse that b...

22 dagen ago | 1

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How to remove border line of a circle graph
set(gca, 'visible', 'off'); or axis off;

23 dagen ago | 1

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preserving the absolute location of an annotation after changing axis limits, or typing 'axis square'
You might want to try my line2arrow function; it allows you to an an arrowhead to a line (plotted with normal axis coordinates),...

27 dagen ago | 0

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World coordinates XY scale
The imshow function automatically sets the DataAspectRatio to be [1 1 1], i.e. the same effect as axis equal. To undo this, set...

27 dagen ago | 1

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Counting how many times a number occured after a specific number
This is a good use case for accumarray: S = [ 3 2 2 4 3 1]; [seq, ~, g] = unique([S(1:end-1)' S(2:end)'], 'rows'); n = ...

ongeveer 2 maanden ago | 2

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How do I extract the HH:MM:SS.FFF portion of a julian day time stamp?
An alternative method that avoids regular expressions would be to let datetime to the parsing for you: Data_Time_Stamp_Cells = ...

ongeveer 2 maanden ago | 1

Unstack - How to break a table into equal chunks of data?
I usually just use splitapply for this sort of thing. (And the kron trick is a nice one for generating repeating blocks of numb...

ongeveer 2 maanden ago | 0

Plotting with four y-axes in the same figure, with multiple datasets against one of the y-axes
While there are a lot of FEX options out there, I really think it's easier to manually control things once you start playing aro...

3 maanden ago | 2

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How do I create a 2d surface plot for a function of x and y?
Change fxy = sin(x).*cos(y) to fxy = sin(xm).*cos(ym)

3 maanden ago | 1

Plotting contourf with discrete x axis
The contour function always assumes your input data are points on a surface that can be linearly interpolated between. To get a...

3 maanden ago | 1

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what does the string #ok<NASGU> mean in the code editior
That code disables the Code Analyzer from suggesting changes to the syntax. Specifically, <NASGU> refers the the ID associated ...

8 maanden ago | 1

How to combine all columns of an array into one column?
Are the values in A always going to be less than 10? If not, what answer do you want? I see two possibilities; treat each valu...

8 maanden ago | 0

(mapping toolbox) Map axes xdata, ydata and zdata meaning?
Map axes apply a geographic transform to convert the geographic coordinates to the projection used by the map axis. You can per...

9 maanden ago | 2

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cut out section of x axis
Rather than shifting data and manually overriding tick labels, I prefer to use multiple axes to achieve breaks like this. The a...

9 maanden ago | 2

Plotting X, Y cordintions with a line short line that indicates the angle
With quiver, the u and v arguments represent the horizontal and vertical components of the arrow you want to draw. You can calc...

9 maanden ago | 1

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How can I assign several values from cell-array tovariables?
I think you'll need to use a quick intermediate variable so you can convert the numeric array to a comma-separated list: tmp = ...

9 maanden ago | 1

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How to use animated line
A couple notes here... First, plotting a graph object creates a GraphPlot object, not a line, so it can't be used (out of the b...

9 maanden ago | 1

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Creating a graph with both descending and ascending x-axis and one y-axis
Does this do approximately what you want? ax(1) = axes('position', [0.1 0.1 0.4 0.8], 'box', 'off', 'yaxisloc', 'left', 'xdir',...

12 maanden ago | 1

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Colour range in a surfplot
By default, a surf plot uses faceted shading, which means that each face is a solid color, determined by a single vertex in that...

ongeveer een jaar ago | 5

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How to change the origin from (0,0) to different coordinates in a plot
You don't need to move the axis; you need to provide x-values for your data. Right now, you're using the ydata-only option for ...

ongeveer een jaar ago | 0

I got "The expression to the left of the equals sign is not a valid target for an assignment."
As others have pointed out, i is already assigned the value you want by default. But assuming it weren't, the proper way to ass...

ongeveer een jaar ago | 0

Create a Matrix with Specific Pattern for Changing Values
Create a grid of values, then unwrap: xval = [-3*pi/4 -3*pi/8 0]; [a,b,c] = ndgrid(x,x,x); x = [c(:) b(:) a(:)]

ongeveer een jaar ago | 0

How do I insert multiple vectors as diagonals in the same matrix?
You're close... you just need to add the matrices together: A = diag(v,1) + diag(v,-1) + diag(v1,0)

ongeveer een jaar ago | 0

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