Sindar

University of Colorado Boulder

Last seen: 3개월 전 | 2018년부터 활동

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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...

2년 초과 전 | 0

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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...

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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...

2년 초과 전 | 0

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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...

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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...

2년 초과 전 | 1

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

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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...

2년 초과 전 | 0

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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...

2년 초과 전 | 0

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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 ...

2년 초과 전 | 1

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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

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

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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...

2년 초과 전 | 1

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'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' ...

2년 초과 전 | 0

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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: %...

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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...

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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...

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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

2년 초과 전 | 0

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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 [] ...

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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...

2년 초과 전 | 0

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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 ...

2년 초과 전 | 1

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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...

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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...

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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...

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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)...

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Faster Looping for Griding/Binning Data
check out discretize

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

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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...

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

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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...

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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...

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Sindar

University of Colorado Boulder

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