Jeremy Kemmerer

MathWorks

Active since 2014

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

bijna 10 jaar 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...

meer dan 10 jaar ago | 0

| accepted

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...

meer dan 10 jaar ago | 0

| accepted

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...

meer dan 10 jaar ago | 0

Answered
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...

meer dan 10 jaar 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...

meer dan 10 jaar 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...

meer dan 10 jaar 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....

meer dan 10 jaar ago | 2

Answered
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...

meer dan 10 jaar 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...

meer dan 10 jaar ago | 0

| accepted

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...

meer dan 10 jaar ago | 1