MATLAB: Probability Density Function (PDF) plot

histogramMATLABnoiseprobability

I have a vector of binary elements and I form another vector of the same length by mapping

{0,1} --> {1,-1}

respectively. White Gaussian Noise is added to this vector and by the property of random vectors, this vector, now say R, is also a random vector. Is there a way to plot the distribution of this vector R other than the histogram method?

Best Answer

See if the ecdf (link) function and related functions such as ecdfhist (link) will do what you want.

Related Solutions

MATLAB: Adding help documentation (pdf) to standalone MatLab GUI

Kushal - are you saying that the

 system('open'help.pdf')

doesn't work when running the standalone application? Check http://www.mathworks.com/matlabcentral/answers/168676-xlsread-returns-an-error-when-used-in-a-standalone-app which might provide some hints on how to solve the problem.

MATLAB: Evaluate a distribution programmatically

The fitdist (link) function will fit a distribution to data, producing a probability distribution object:

pd = fitdist(x,distname)

You can then calculate the probabilities with it using the Plot Standard Normal Distribution cdf (link) or Plot the pdf of a Standard Normal Distribution (link) functions:

data = 5 + 2*randn(1, 100);                         % Create Data
pd = fitdist(data(:), 'Normal');
x = linspace(-2, 12);
Npdf = pdf(pd, x);
Ncdf = cdf(pd, x);
figure
plot(x, Npdf,   x, Ncdf)
grid

Best Answer

Related Solutions

MATLAB: Adding help documentation (pdf) to standalone MatLab GUI

MATLAB: Evaluate a distribution programmatically

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