Jeremy Kemmerer

MathWorks

Active since 2014

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I work at the MathWorks.
Professional Interests: Acoustics, Signal Processing, Machine Learning, Statistics

Statistics

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How can I define a sym variable, say t and sym functions say q1(t) and q2(t) such that I can create another function say f=q1*q2 and in one instance differentiate f w.r.t. t and in another differentiate f partially w.r.t q1 or q2.
As of the R2015a release, MATLAB includes a function 'functionalDerivative' in the Symbolic Math Toolbox which will enable you t...

9 years ago | 3

Answered
Parameter optimization for a model that relates two datasets
Do you know for certain that the parameters A and B exist? It sounds like you may have an _underdetermined_ system. One qui...

10 years ago | 0

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Answered
K-Means Clustering with Spatial Correlation
It sounds like you would like mining samples that are physically collected closer together to be clustered together in your anal...

10 years ago | 0

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Answered
Matlab won't launch : Java Error?
There may be a problem with your Java installation. You can download Java Runtime Environment (JRE) from here: http://www.o...

10 years ago | 0

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Problem in GCLM Matrix
The size of the GCLM matrix (output from the “ *graycomatrix* ” function) depends on the number of grayscale levels of the image...

10 years ago | 0

Answered
Double integration with trapz
It sounds like you are trying to perform numerical double integration. Have you tried using the function “integral2”? Here’s...

10 years ago | 0

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Calculate the Rayleigh Integral
Hi Matthias, I found a paper which implements the Rayleigh Integral around a baffled panel here: http://www.sciencedirect.co...

10 years ago | 0

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Answered
Multcompare for friedman structure
Hi Agamemnon, The function ‘multcompare’ should accept a ‘stats’ structure from the function ‘friedman’ without any problems....

10 years ago | 2

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delete some matrix elements
Hi Patrick, A straightforward way to find and alter matrix elements with a certain property is logical indexing. In your case...

10 years ago | 1

Answered
How do I estimate the parameters for a beta distribution using MLE?
Hi Jessica, It looks like the approaches you are using to estimate the Beta distribution parameters are valid, but it seems y...

10 years ago | 0

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Answered
Difference between whisker and adjacent value handlers in box plot?
It sounds like you would like to access data values directly from a boxplot, such as the median and the ends of the whiskers, an...

10 years ago | 1