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Kelly Kearney


University of Washington/NOAA Alaska Fisheries Science Center

Last seen: 9 days ago |  Active since 2006

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Professional Interests: ocean biogeochemistry, ecosystem modeling

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Answered
'splitapply' syntax to index multiple columns in a timetable
I really wish splitapply did allow you to pass a table as input and apply the same function to each column of that input. Unfor...

9 months ago | 0

Answered
Accuracy of polygon approximation
Other possible metrics commonly used to measure the error of a polygon simplification algorithm involve comparing the perimeter ...

9 months ago | 0

Answered
group by indexing discontinuous timetable
Here's one possible solution; it first checks for criteria 2 and then goes back to verify #1. You can probably do it all in one...

9 months ago | 0

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Answered
define different color for area
I don't think an area plot allows for multiple colors within a single area object. You could accomplish the color change using ...

9 months ago | 0

| accepted

Answered
Problem adding a field to a struct via function
Your function doesn't return any output. Modify it to do so: function MeshInfo = generateTriangleCount(MeshInfo) SizeTriangle...

9 months ago | 1

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Answered
Name Contour levels outside plot
Using builtin contour-related functions... no, not really. Contour labels are one of the least customizable parts of Matlab gra...

9 months ago | 1

Answered
Combine data from multiple netCDF files
What are the dimensions of the total dataset? And do you really need to hold the entire thing in memory at once? I think you...

9 months ago | 0

Answered
How to plot a 3D cube based if i have the coordinates of the 8 surrounding nodes?
To expand on Star Strider's answer, in your example, you've specified a list of coordinates, but you haven't told Matlab how the...

9 months ago | 1

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Answered
How to plot a map like this in Matlab?
Do you want to replicate that plot exactly, or just the general concept? If the former, I'd recommend looking at m_map, since i...

9 months ago | 0

Answered
Matrix math with Datetime arrays
As you discovered, implicit expansion of is only supported for numerical arrays (though I'm not sure where that's documented.) ...

9 months ago | 0

Answered
Timetable_Averaging values from each month
I don't believe you can use retime to build a climatology; for that, I usually use the splitapply function. Unfortunately, spli...

10 months ago | 0

Answered
A simple scatter plot from a 2d matrix
Are any of these what you're looking for? a1=rand(5,1)*3; a2=rand(5,1)*3; [x1, x2] = meshgrid(sort(a1),sort(a2)); % sort for ...

10 months ago | 0

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Answered
How do I create a for loop with fields of structures?
In your current code, you're saving over P on each iteration of the loop. Instead, save to an array: nt= length(Global_Data.Fi...

10 months ago | 0

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Answered
Multiple axes in a subplot
You can achieve the multiple-axis look by layering different axes on top of each other. There are several File Exchange entries...

10 months ago | 0

Answered
transform text data like {'1951:Q4'} with quarterly dates to number x axis of a plot
I'd recommend converting your fdate cell array to an array of datetimes: fdate = datetime(fdate, 'InputFormat', 'uuuu:''Q''Q');...

10 months ago | 0

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Answered
How to plot coordinate data to appear solid with lighting effect?
The following example shows a relatively simple way to create patch surfaces that connect each circle to the adjacent one (assum...

10 months ago | 0

Answered
How do I select data based on multiple indexes?
Assuming that the landwatermask, PerpSurface_saturationflag, and ParSurface_saturationflag matrices are all the same size, and t...

10 months ago | 0

Answered
Spread monthly data into days
One way to do the expansion... convert your monthly dates to the first of each month, then use dateshift to check which month ea...

11 months ago | 2

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Answered
How to reduce data irregularly?
It sounds like you're looking for a line simplification algorithm. These algorithms try to preserve the shape of a polygon or p...

11 months ago | 0

Answered
How to set plot color for N curves to be a gradient of N color shades between light blue and dark blue (or any other color)?
I suggest reformatting the color-generating function so that instead of returning the entire gradient colormap, it returns only ...

12 months ago | 1

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Answered
Separating 1D data into clusters and counting the amount of elements in each
If the cluster tolerance defines how close points need to be to their nearest neighbor in order to be called a cluster, then you...

12 months ago | 1

| accepted

Answered
How to load .mat data from another folder?
The dir command returns the path to each file in the folder field, so you need to append that to recreate the full path names fo...

12 months ago | 2

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Answered
Plotting three axis with one y axis
I like to do this sort of thing the manual way, using my offsetaxis function. It requires a little more manual coding than func...

12 months ago | 0

Answered
cutline of a triangular meshed graph
The simplest way to do this is to simply interpolate z for a set of points defined by x = 0 and y = the range of your y-data. F...

1 year ago | 0

Answered
How interp2 deal with edges on bicubic interpolation?
interp2 does not extrapolate. By default, it sets any points outside the data bounds to NaN; you can alternatively choose a dif...

1 year ago | 1

Answered
Plotting a point in Matlab
If you just want a single point with an arbitrary size, try plot, and play around with the 'markersize' property. Be sure to sp...

1 year ago | 0

Answered
How to find graph density in MATLAB for a given graph G?
You can simply calculate the number of non-zero elements relative to total elements in the adjacency matrix: nnz(adjacency(G))....

1 year ago | 0

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Answered
How to Create Plot of Weights at Spatial Locations (Connectivity Map)
There aren't any pre-packaged functions to do this, but it should be pretty straightforward to create a function the calculates ...

1 year ago | 0

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Answered
What should be dimension of surf(X,Y,Z) 3D?
You just need to transpose Z: surf(hw, rw, Z')

1 year ago | 0

Answered
How to extract -3 dB diameter from Matrix?
The coordinates of the contour line are saved in the c matrix, albeit in a less than user friendly format. I like using the con...

1 year ago | 0

| accepted

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