Sarah Wait Zaranek
MathWorks
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Professional Interests: parallel computing, geophysics
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Feeds
Array manipulation ... a better way?
You can do this with logical indexing (and not a for-loop) q = zeros(length(p(:,1)),1); Find where the first column is e...
alrededor de 11 años hace | 0
| aceptada
load several (one after another ) .mat Files via a For-Loop Job
Unless I am missing something, I think the easiest thing would be to do a nested for loop. for ii = 1: Number load(['co...
más de 11 años hace | 6
| aceptada
How to fit histogram data with normfit using signed X-axis ?
Probably the easiest way to handle this, if you like what the distribution fitting tool is doing, is to autogenerate code from ...
más de 11 años hace | 0
| aceptada
Reproducing the "Evaluate" function from "basic fitting" GUI directly in code
You can use the polyfit function to fit your data programatically. You can then use polyval to evaluate the polynomial at a giv...
más de 11 años hace | 0
| aceptada
Question regarding the Spredsheet link EX tool
These sections in the documentation should walk you through the basics of using Spreadsheet Link EX. http://www.mathworks.com...
más de 11 años hace | 0
Error running parallel simulations
It looks like your mex file is still being used in MATLAB memory. You can try to see if clearing mex files will help, clea...
más de 11 años hace | 0
sharing matrix in parfor
There is no way to do shared memory automatically in a parfor loop. However, depending on where the data is located - there may...
más de 11 años hace | 1
Sscanf /sprintf usage
I think this is your issue -- From doc for sscan - "Format specifiers for the reading functions sscanf and fscanf differ f...
casi 12 años hace | 0
| aceptada
How to Save Matrices to excel multiple times with incremental excel name to avoid overwrite
The easier way to to construct a new filename within the loop by converting the index to a string and adding it the original nam...
casi 12 años hace | 2
| aceptada
converting .mat to .dat file
This should do it. Note: I made a sample mat-file with x,y,a as my variables. load test.mat dlmwrite('test.dat',[x y a]...
alrededor de 12 años hace | 0
| aceptada
Randomly Choose number from a matrix of several numbers?
Instead of starting with your code - I will give an example of how I would do it. Hopefully this can see how you implement it i...
alrededor de 12 años hace | 0
Controlling Dll files from Matlab
First step is to see if you can use loadlibrary interface in MATLAB. See this section of the documentation on how to call C ...
alrededor de 12 años hace | 0
Loops are slow inside spmd blocks!!
Looks like loops inside parfor/spmd with tons of iterations are not getting all the benefit from JIT (Just-in-Time interpreter/c...
alrededor de 12 años hace | 0
Writing a cell array to excel but skipping certain values
I think it is clear what you want to do- I don't have MATLAB open, so forgive minor syntax issues. 1. Step one extract the ...
alrededor de 12 años hace | 1
export to excel
This should work out for you. Reshape the array so it is an nx*ny by 4 and then use the xlswrite command. A = rand(18,30...
alrededor de 12 años hace | 0
| aceptada
CPU ID and EXE
You can run any command to the operating system via the bang (!) command, something like this (for a Windows machine) will give ...
alrededor de 12 años hace | 0
How to autoload a custom function in cftools
I believe what you want to do is to highlight the data you don't want to fit using the "outlier" tool. <http://www.mathwork...
más de 12 años hace | 0
How to autoload a custom function in cftools
A couple of options for you. 1. You can autogenerate the code to do the fit from cftool. Then you can repeat the analysis wit...
más de 12 años hace | 0
| aceptada
Changing a single element in sparse matrices
In general, it is useful to define the values and locations of the non-zero entries of your sparse matrices - and then only crea...
más de 12 años hace | 0
Semilogy Plot not showing minor tick marks
The X Minor ticks are off by default. This should turn them back on. ax = gca; % grabs current axis set(ax,'XMinorTi...
más de 12 años hace | 0
Running MATLAB from Excel - Matlab Builder Ex or Matlab Spredsheet link EX?
It basically breaks down to if you want the end user who is running the model within Excel to have MATLAB or not. Spreadshe...
más de 12 años hace | 1
| aceptada
Parallel for loop: Using broadcasting array variable values as indexes
For parfor loops, when you index into a sliced variables, restrictions are placed on the first-level variable indices. This allo...
más de 12 años hace | 2
| aceptada
memmapfile in parfor loops
You should be able to use memmapfile in a parfor loop. The trick is to pass m into a function within the parfor loop. You can g...
más de 12 años hace | 3
plot integral
This can be done using cumtrapz -- Doc here: <http://www.mathworks.com/help/releases/R2011a/techdoc/ref/cumtrapz.html> ...
casi 13 años hace | 4
How to brush data automatically?
Only certain plots can be brushed. The doc has list here of what you can and can't brush: <http://www.mathworks.com/help/release...
casi 13 años hace | 1
how to open 3D image from a series of 2D image?
This demo using MRI data should help you get started: <http://www.mathworks.com/help/releases/R2011a/techdoc/visualize/f5-329...
casi 13 años hace | 2
parallel computing with scheduler Comsol-Matlab
COMSOL helped me with a similar issue about a year ago. Their answer is below. I would encourage you to contact them. They were...
casi 13 años hace | 2
several slices of a 2D-image interpolate to 3D
This demo is probably a good first start for you. Displaying MRI Data: <http://www.mathworks.com/help/techdoc/visualize/...
casi 13 años hace | 0
receiving a sparse matrix
If I understand you correctly, what you want to do is take your cell array (1 x 40) - and for each column of the cell array maps...
casi 13 años hace | 0
| aceptada
bar3 color
I believe this will work for you. Basically I am resetting each set of bars colormap by changing the CData of the patches that ...
casi 13 años hace | 0
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