Community Profile

# Shashank Prasanna

### MathWorks

684 total contributions since 2012

Product Marketing, MathWorks
Statistics and Machine Learning Applications

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Magnitude of a vector
This works perfectly fine on MATLAB R2013a: >> syms x y z r = [x y z]; norm(r) http://www.mathworks.com/help/symbolic/norm....

11 Monate ago | 4

| accepted

Submitted

Machine Learning Made Easy
MATLAB files from the webinar

mehr als 3 Jahre ago | 92 downloads |

Submitted

Multilevel Mixed-Effects Modeling Using MATLAB
MATLAB files from the webinar

mehr als 3 Jahre ago | 10 downloads |

Submitted

Response Surface Models of Drug Interactions with Curve Fitting Toolbox
"Response Surface Models of Drug Interactions with Curve Fitting Toolbox" webinar demo files

mehr als 3 Jahre ago | 5 downloads |

how can make video from images.......
What you are looking for is here: http://www.mathworks.com/help/matlab/examples/convert-between-image-sequences-and-video.htm...

etwa 5 Jahre ago | 4

one-class classifier using "Gaussian Mixture Model"
Here is the documentation link to Gaussian Mixture Models: http://www.mathworks.com/help/stats/gaussian-mixture-models-1.html...

mehr als 5 Jahre ago | 1

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how to make the X,Y for fitcsvm,as i get error using it?
What version of MATLAB are you using? fitcsvm was introduced in MATLAB R2014a. If you are using an earlier version of MATLAB you...

mehr als 5 Jahre ago | 0

How does predict with ensemble regression works?
For classification the output of the ensemble is the class that gets majority vote from all the learners. For regression the res...

mehr als 5 Jahre ago | 1

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Parameter manipulation in naive bayes classificator struct
You can change the prior before the model is fit. If you want to specify different prior, you can do that while calling NaiveBay...

mehr als 5 Jahre ago | 0

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Matlab animation to powerpoint
You can export your animation as a video as follows: http://www.mathworks.com/help/matlab/ref/videowriter-class.html You c...

mehr als 5 Jahre ago | 1

How can I import data from .xls using for Principal Component Analysis (PCA)?
Michelle, your approach is correct. *princomp* (or *pca* which is a newer and recommended function to use) accepts only matrices...

mehr als 5 Jahre ago | 1

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predict does not work with a crossvalidated tree?
When you use the 'crossval' 'on' flag you get a partitioned model as an output. You can predict from this model using kfol...

mehr als 5 Jahre ago | 0

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Chaotic signal generation using Matlab
There are plenty of submissions for Lorentz attractor in File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/i...

mehr als 5 Jahre ago | 0

nonlinear minimization with fminunc
The optimization stopped because *size of the current step is less than the default value*. However you can change the defaults....

mehr als 5 Jahre ago | 0

Eigen face , principal component analysis
Did you try File Exchange? http://www.mathworks.com/matlabcentral/fileexchange/index?utf8=%E2%9C%93&term=eigenface There a...

mehr als 5 Jahre ago | 0

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Optimset error: How to get over it?
It appears that the code you found was written using an older version of MATLAB (R2011a or earlier). LineSearchType has since be...

mehr als 5 Jahre ago | 0

Multiple linear model p value f test t test
These phrases have standard meaning in Statistics which is consistent with most literature you may find on Linear Regression. In...

mehr als 5 Jahre ago | 0

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Can neural net weights be negative?
Weights can be whatever the training algorithm determines the weights to be. If you take the simple case of a perceptron (1 laye...

mehr als 5 Jahre ago | 1

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Nearest nodes to a given point
You can perform a "m" nearest neighbor search for a specified distance metric: http://www.mathworks.com/help/stats/knnsearch....

mehr als 5 Jahre ago | 0

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What are the new features in embedded coder?
If you have specific questions on capabilities you should consider contacting MathWorks embedded coder expert on the product pag...

mehr als 5 Jahre ago | 0

My parallel computing code (R2013b) is very slow
If you have Parallel Computing Toolbox installed you shouldn't see the error message. Confirm you have Parallel Computing Toolb...

mehr als 5 Jahre ago | 1

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Write in the different csv cells in matlab
Why don't you use CSVWRITE: http://www.mathworks.com/help/matlab/ref/csvwrite.html

mehr als 5 Jahre ago | 0

How can I create a vector of rolling Standard Deviations
It is preferred if you give it a shot first and then seek help, w = 30; y = NaN(100,1) x = randn(100,1); for ii = ...

mehr als 5 Jahre ago | 0

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How to find standard deviation of a linear regression?
Ronny, it is fairly easy to calculate in few lines of code, however it is easier to use functions such as fitlm to perform linea...

mehr als 5 Jahre ago | 0

How to execute .exe file at linaro ubuntu(ARM processor)
Firstly .exe executable files are specific to Windows OS, they won't run on Linux unless you use an emulator such as wine. Cu...

mehr als 5 Jahre ago | 0

Matlab AR command for creating the model of predicting kstep ahead prediction
Maybe you are looking for ARX (autoregressive with exogenous inputs). You can fit an ARX model using either the Econometrics or ...

mehr als 5 Jahre ago | 0

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MATLAB code for PCA and K-Means to be applied on Intrinsic Mode Function graphs?
http://www.mathworks.com/help/stats/pca.html http://www.mathworks.com/help/stats/kmeans.html

mehr als 5 Jahre ago | 0

How to calculate AIC in glmfit?
It is recommended to use *fitglm* instead of the older glmfit. Depending on the release of MATLAB (> R2012a) you can use either...

mehr als 5 Jahre ago | 3

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extract equation from cfit contents
You can use the formula methods to access the formula you fit: load census f = fittype('poly2'); formula(f)

mehr als 5 Jahre ago | 0

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