# Shashank Prasanna

### MathWorks

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Statistics and Machine Learning Applications

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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...

mer än 9 år 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...

ungefär 10 år ago | 1

| accepted

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...

ungefär 10 år 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...

ungefär 10 år ago | 1

| accepted

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...

ungefär 10 år ago | 0

| accepted

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...

ungefär 10 år 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...

ungefär 10 år ago | 1

| accepted

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...

ungefär 10 år 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...

ungefär 10 år 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....

ungefär 10 år 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...

ungefär 10 år 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...

ungefär 10 år 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...

ungefär 10 år 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...

ungefär 10 år ago | 1

| accepted

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....

ungefär 10 år 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...

ungefär 10 år 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...

ungefär 10 år ago | 1

| accepted

Write in the different csv cells in matlab

Why don't you use CSVWRITE: http://www.mathworks.com/help/matlab/ref/csvwrite.html

ungefär 10 år 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 = ...

ungefär 10 år ago | 1

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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...

ungefär 10 år ago | 1

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...

ungefär 10 år 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 ...

ungefär 10 år 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

ungefär 10 år 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...

ungefär 10 år 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)

ungefär 10 år ago | 0

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Using fitlm for multiple linear model: Does this function automatically standardise the variables?

No fitlm doesn't not standardize your data. You will have to do this prior to calling fitlm: http://www.mathworks.com/help/st...

ungefär 10 år ago | 0

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How can predict multi step ahead using Narnet

Take a look at the line where I define *Ypred* here I specify nans for the number of forecasts I want to make. I specify 4 more ...

ungefär 10 år ago | 3

| accepted

difference between bernoulli and binomial random variables

The Bernoulli distribution is a special case of the binomial distribution, with the number of trials n = 1. https://en.wikip...

mer än 10 år ago | 0

How to use KNN to classify data in MATLAB?

You need a validation set if you want to tune certain parameters in the classifier. For example if you were to use SVM with rbf ...

mer än 10 år ago | 2

Why does quadprog return different results on different machines?

Did you provide the starting point yourself? If you have multiple optimums then the result will be sensitive to the starting poi...

mer än 10 år ago | 0