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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


Loading ECG .dat file into matlab
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
Hello,Please help me.. I want to understand how "classify" funtion works in matlab. So I have written a code below. load...

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

2

answers

Question


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

1

answer

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

3

answers

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

1

answer

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

2

answers

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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answers

Answered
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

3

answers

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

2

answers

Submitted


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

plus de 10 ans ago | 1 download |

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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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Answered
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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answers

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

2

answers

Answered
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

16

answers

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

2

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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


reading multiple images - strcat
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

2

answers

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

1

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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

1

answer

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

1

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Question


matlab preloaded 'load' files
matlab consist some preloaded load files for example >>load cities >>load hald >>load moore I want to know all other ...

plus de 10 ans ago | 2 answers | 0

2

answers

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