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Laurens Bakker


Simon Fraser University

Actif depuis 2012

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Professional Interests: Cellular Automata and Social Network Analysis

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  • Revival Level 2
  • Knowledgeable Level 2
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How to Normalize variables?
Hi Matt, Normalisation just means: "change the numbers so that both range from 0 to 1". You can do that by subtracting the mi...

presque 13 ans il y a | 0

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Calculating Hamming Distance?
Hi Alex, If you have the Statistics toolbox, you can use the pdist function. Cheers, Laurens

presque 13 ans il y a | 0

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How to reduce the time?
Hi Shifat, the base MATLAB distribution has a function for this: P = dec2bin( fix(s) ); where fix() cuts off the frac...

presque 13 ans il y a | 0

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parfor using
Hi Yildirim, There is considerable overhead in gathering the data back into a single variable. I removed the assignments and ...

presque 13 ans il y a | 0

| A accepté

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Array of objects - speed issues
Hi Gabriel, I have had the same experience of MATLAB slowing down when using OO design, particularly with handles. I've never...

presque 13 ans il y a | 0

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basic question on how to find mean distance between an interior point and all of the vertex points of the convex hull
Hi Andrew, If you have the Statistics toolbox, use the pdist function to compute the distance between a vector of points and ...

presque 13 ans il y a | 0

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overlapped objects counting in matlab
Hi Faisal, I'm not sure if MATLAB is the right tool for this. Take a look at <http://boost-geometry.203548.n3.nabble.com/inte...

presque 13 ans il y a | 0

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reordering a matrix
Hi Ramya, First, you re-order the known image according to the sorted order column by column: for i=1:size(avgtar,2) ...

presque 13 ans il y a | 0

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Possible to come out with a adjacency matrix?
B is the an adjacency matrix.

presque 13 ans il y a | 0

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Tab completion produces no filenames (Mac OS)
Hi Eric, There is no tab completion on strings because they are literals. MATLAB does not know that the string you are typing...

presque 13 ans il y a | 0

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Addition of time series' values in array
Why not just use a for loop? sum = zeros( size(OBJECTS(1).PROP.Data ); for obj=OBJECTS sum = sum + obj.PROP.Data;...

presque 13 ans il y a | 0

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Function handle invoking Java reports syntax error?
Hi Ahmed, anonymous functions are not allowed to store any data, and accessing a field of java.io.File(d) probably implicitly...

presque 13 ans il y a | 0

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How can I find the coefficient of trasfer function in detail? (more than 4 unit)
Hy Hyetan, sys2 is an object that has fields num and den, for numerator and denominator, so sys2.num{:}(2) is the val...

presque 13 ans il y a | 1

| A accepté

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about function argument
Yes you can. MATLAB is not a typed language, so you could write something like: function [outputs] = foo ( myNeuralNet, ot...

presque 13 ans il y a | 0

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Minimizing the Maximum Value of an Array
This seems like a general constrained optimisation function. Since you have already formulated your objective function, you coul...

presque 13 ans il y a | 0

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Calculate Service Area For Fire Station Bye use Shortest Path
Service areas by access times are usually calculated as voronoi diagrams (see the voronoi() function) or by a multi-source bread...

presque 13 ans il y a | 0

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k-means clustering
MATLAB actually has a built-in clustering function called kmeans. Assuming you can reshape your data to match the format expecte...

presque 13 ans il y a | 0

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JMI ?
Please consult <www.mathworks.com/products/javabuilder/> for details on converting matlab programmes to JAVA. JMI is not directl...

presque 13 ans il y a | 0