Community Profile # Raviteja

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Active since 2011

I am working on DSP. I use to design my algorithms through Matlab. I like and love to use Matlab. Easy to program , visualize, debug mostly it has good support though Matlab answers/file exchange"
Professional Interests: Signal Processing, Speech Signal Processing

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Question

Hello, I want to load ECG data which consist s0010_re.dat file name. I want to load into a variabl ECG_wave=load('s0010_r...

plus de 5 ans ago | 1 answer | 0

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Question

Drawing a line
I want to draw a line like this <http://www.flickr.com/photos/75243597@N03/6780413880/> where c=0; The line have to pas...

environ 10 ans ago | 1 answer | 0

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Question

Drawing slope
Can we draw a line with the slope vector m =[-0.74586; -0.6661] if yes how ?

environ 10 ans ago | 1 answer | 0

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Question

vector element extraction
>> S=[8 4 1 6 7 2 1 5 0 5 1]; >> C=[1 0 5 8]; I want to remove all the elements in S which are in C. In otherwords, I w...

plus de 10 ans ago | 1 answer | 0

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Question

Unrepeated random numbers
I have a vector S >> S=[1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10]; I want to randomly pic 5 elements which are unrepeate...

plus de 10 ans ago | 1 answer | 0

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Question

Drawing a discrimination line

plus de 10 ans ago | 0 answers | 0

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Question

Plot Eigen Vectors
>> covX=[3.1163 1.2956; 1.2956 0.5810]; >> [Evec Eval]=eig(covX); for this how to plot Eigen vectors ?

plus de 10 ans ago | 2 answers | 0

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making integers in a column
In a program I have following result for 'Check' variable >>Check=[testing_ind' ldaClass All_data(testing_ind,:)]; ...

plus de 10 ans ago | 1 answer | 0

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Question

Saving with quotes.
I have written code as below HC_Label=[]; for i1=1:5 HC_Label=['HC'; HC_Label]; end Out is like this ...

plus de 10 ans ago | 1 answer | 0

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Question

png to eps conversion
I want to convert an image .png to .eps converstion.. Can you please suggest me the code.. I=imread('rp_noise.png'); imwrit...

plus de 10 ans ago | 3 answers | 0

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Question

saving workin space variable
I executed my file which consists 20 variables (stored in the workspace after execution). I want to save 1 variable called myva...

plus de 10 ans ago | 1 answer | 0

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Question

Matlab workspace
How can I know, the total variables size stored in matlab? I mean, total memory taken by workspace?

plus de 10 ans ago | 2 answers | 0

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Question

Shuffle matrix elements
Hey guys, I want to shuffle a 3x3 matrix (which consist elements within 1:9 unrepeated). So that I have written a very strange c...

plus de 10 ans ago | 3 answers | 1

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regarding mini project
I have done following 2 small projects (Image processing) using matlab.. 1. Cup to disk ratio of a fundus images using matlab...

plus de 10 ans ago | 2

Question

Merge array to a number
I want to merge an array to a number. i.e., if >>x=1:5; do some operation on x and get the result like >>y=12345 ...

plus de 10 ans ago | 3 answers | 0

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Question

create as built in functions
I have bunch of functions related to my applications and all are .m files. I don't want to copy each function in current working...

plus de 10 ans ago | 2 answers | 0

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Submitted

Binary to Decimal coversion
Convert Binary to Decimal Equivalent. It also convert fractional binary values. Question

FIR1 basic question
Hello Please help in FIR1 filtering. I clearly mentioned in the code about what I want to do. clear all clc fm=100; ...

plus de 10 ans ago | 1 answer | 0

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Plot Problem
x=.1:.1:4*pi; y=(sin(pi*x))./(pi*x); plot(x,y) Is this working?

plus de 10 ans ago | 0

Question

Plotting Eigen vectors
I have a real symetric matrix A >> A=[1 7 3;7 4 -5;3 -5 6]; I found its eigen vectors >> [Evec,Eval]=eig(A); I want to p...

plus de 10 ans ago | 0 answers | 0

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Question

Multivariate Guassian Distribution
* I want to learn Multivariate Gussian distribution so I written the following code.* I am implementing following formula <...

plus de 10 ans ago | 2 answers | 1

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Good programming practice...
I got good help from matlab datasheets for matlab programming tips http://www.mathworks.in/help/pdf_doc/matlab/programming_...

plus de 10 ans ago | 0

Question

Good programming practice...
Hello all, Please explain good MATLAB programming practice methods. It will help to the guys who are new to programming like me...

plus de 10 ans ago | 16 answers | 7

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Question

How to check efficiency of my code?
I heard, the command true is faster than logical(1) This I got after reading one answer in this answers forum. In general how t...

plus de 10 ans ago | 2 answers | 0

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Question

matrix manipulation
>> A A = 7 0 6 9 8 7 6 9 7 >> B B = 3 ...

plus de 10 ans ago | 1 answer | 0

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Question

In a folder I have 50 images of 5 subjects 10 each. (all are .jpg format) I named them as sub1 (1) sub1 (2) ... ....

plus de 10 ans ago | 2 answers | 0

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Question

biplot understanding
>> x=[1 2 3 4 5 6;1 2 3 4 5 6]' x = 1 1 2 2 3 3 4 4 5 5...

plus de 10 ans ago | 1 answer | 0

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Question

random number within a rwo vector
I have a row vector say >> A A =[ -29 -17 -11 -10 -8 -8 -7 -2 -1 3 3 3 8 13 14] I want to randomly gen...

plus de 10 ans ago | 1 answer | 0

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Question

PCA values
I have written following code to learn about PCA. clear all clc load hald hald=ingredients; [m n]=size(hald); ...

plus de 10 ans ago | 1 answer | 0