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Sindar


University of Colorado Boulder

Last seen: 1 year ago |  Active since 2018

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Answered
Highly Memory-Efficient Recursion
Do they need to be symbolic? That probably adds a decent cost Similarly, if you have many zeros, sparse matrices will store mor...

4 years ago | 0

Answered
How to take 100 samples of a plot.
First, what are you actually doing with M, Xdot1, etc.? Currently, the code overwrites them each N_m loop, without doing anythin...

4 years ago | 0

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Answered
Image Reconstruction using Radial Basis Function?
Some ideas for figuring out patches: % load an example (color) image corn_rgb = imread('corn.tif',2); % get pixel rows, pixel...

4 years ago | 0

Answered
How to create a plotmatrix from a cell?
A scatterplot matrix is for if you have several equally-sized columns that you want to plot against one another. That doesn't so...

4 years ago | 0

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Answered
How can I put grouped stacked bar plots together in one figure?
Try commenting out line 19 in the function file: figure it is probably what's interfering with your attempts to create subplot...

4 years ago | 1

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Answered
Loading EEG files in a loop
pathforsetfiles = fullfile(direc,'YYY') list ={'04','05'} for counter = 1 : length(list) inp{counter} = list{counter} su...

4 years ago | 0

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Answered
Import matrices with same name and dimensions from different Data
If you don't tell matlab what to do with the variables, it will simply overwrite them each time. There are a few options Stru...

4 years ago | 0

Answered
How to export a figure in Live Script?
Here's my wrapper function, with usage like save_myfig(gcf,'spectrum_1e12',{'png','fig'}) I've been using some variation for v...

4 years ago | 0

Answered
How can I get the averages of each day of multiple years?
Check out groupsummary, specifically this example and this input argument Also, this thread has some solutions related to leap ...

4 years ago | 1

Answered
Large nutrient data sets - how to plot individual data not as a plotted line
plot(x,y,'.') will plot each data point as a point, no connection. If you'd like a different shape, see here

4 years ago | 0

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Answered
Merge data by date
Check out groupsummary, specifically this example and this input argument

4 years ago | 0

Answered
Efficient Method for Multiple Gridded Interpolation
I don't know how fast it will be, but I think this'll work % lon and lat are read from a netcdf file lon = ncread('important_g...

4 years ago | 1

Answered
'LineWidth' parameter not affecting marker thickness of animated line
According to the documentation, 'LineWidth' should change the markers as well, so it may be a bug. Regardless, try 'MarkerSize' ...

4 years ago | 0

Answered
how to add labels to the elements of a vector.
One option: store things in a table. This particular setup may not be the most efficient, but hopefully it helps you start: %...

4 years ago | 0

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Answered
Find the equality of each value in the vector and cell array
% better test data A = {1;[];1;[1 4];3}; B = [1;4;10;4;3]; temp = zeros(length(B),1); for i=1:length(B) % isequal handl...

4 years ago | 0

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Answered
Overwriting information in a cell array
Braces access cell contents, allowing you to update (in this case, appending to the end and hoping it's a compatible shape) Bra...

4 years ago | 0

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Answered
Simulate single sine wave
Without the noisy signal? See sin documentation. With the signal (i.e. fitting to it), check out the answer to this question

4 years ago | 0

Answered
How can I fix "Index in position 2 exceeds array bounds" in for loop/ if statements?
Okay, I believe this code is equivalent to what you have, cleaner and without the error % pre-allocate with cell arrays of [] ...

4 years ago | 0

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Answered
This is function to help
Whether this can be vectorized is really a question about SD. It's possible it works on columns straight off: Val = SD(VImage,Q...

4 years ago | 0

Answered
What is missing from MATLAB #2 - the next decade edition
Ok, this is pretty minor, but: For common functions that return values as the first output and indices as the second, it would ...

4 years ago | 2

Answered
Indices of 2D array
data =[ 2 5 0 15 12 7 4 8 19 14 20 25 18 13 40 ]; reshaped_data = reshape(data,3...

4 years ago | 1

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Answered
Potting graphs with if else and for
If it throws an error, please include that information. If that error is what I'm seeing: Error using plot. Vectors must be th...

4 years ago | 0

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Answered
extracting information from tall timetable using a loop
Looks like you could do everything with groupsummary, assuming you can figure out how to define the bins G = groupsummary(TT,'T...

4 years ago | 0

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Answered
Trying to create a matrix by nesting a for loop in another for loop
No need for loops, except if effectiveness doesn't accept arrays % nx1 NTU = (2.5:0.1:3.5).'; for i=1:length(NTU) eff(i)...

4 years ago | 0

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Answered
Faster Looping for Griding/Binning Data
check out discretize

4 years ago | 0

Answered
How to plot phase and amplitude spectrum after doing fft?
See this example for in angle documentation

4 years ago | 0

Answered
Convert from cell of a table to an array
It gets tricky with different variable types and widths, but hopefully this helps. Worst case, you build up the new table elemen...

4 years ago | 0

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Answered
CREATE HISTOGRAMM WITH A SPECIFIC NUMBER OF CLUSTERS IN X AXIS
histogram: x = randn(1000,1); nbins = 5; h = histogram(x,nbins)

4 years ago | 0

Answered
Z must be a matrix, not scalar or vector - SURF
struct array is a terrible way to store this data. Does this do it? tbl = struct2table(b); surf(tbl.temperature,tbl.humidity,t...

4 years ago | 0

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Answered
Projectile motion using while loop Time of flight
Basically, the issue is that you are only updating a small portion of the relevant variables each time step. A few questions Is...

4 years ago | 0

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