Raviteja
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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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Publish your first submission
Awarded to Raviteja on 09 Oct 2019
Accept 20 answers given by other contributors
Awarded to Raviteja on 20 Jul 2017
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Feeds
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...
meer dan 7 jaar ago | 1 answer | 0
1
answerQuestion
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...
ongeveer 12 jaar ago | 1 answer | 0
1
answerQuestion
Drawing slope
Can we draw a line with the slope vector m =[-0.74586; -0.6661] if yes how ?
ongeveer 12 jaar ago | 1 answer | 0
1
answerQuestion
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...
ongeveer 12 jaar ago | 1 answer | 0
1
answerQuestion
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...
ongeveer 12 jaar ago | 1 answer | 0
1
answerQuestion
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...
ongeveer 12 jaar ago | 0 answers | 0
0
answersQuestion
Plot Eigen Vectors
>> covX=[3.1163 1.2956; 1.2956 0.5810]; >> [Evec Eval]=eig(covX); for this how to plot Eigen vectors ?
ongeveer 12 jaar ago | 2 answers | 0
2
answersQuestion
making integers in a column
In a program I have following result for 'Check' variable >>Check=[testing_ind' ldaClass All_data(testing_ind,:)]; ...
ongeveer 12 jaar ago | 1 answer | 0
1
answerQuestion
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 ...
ongeveer 12 jaar ago | 1 answer | 0
1
answerQuestion
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...
meer dan 12 jaar ago | 3 answers | 0
3
answersQuestion
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...
meer dan 12 jaar ago | 1 answer | 0
1
answerQuestion
Matlab workspace
How can I know, the total variables size stored in matlab? I mean, total memory taken by workspace?
meer dan 12 jaar ago | 2 answers | 0
2
answersQuestion
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...
meer dan 12 jaar ago | 3 answers | 1
3
answersregarding mini project
I have done following 2 small projects (Image processing) using matlab.. 1. Cup to disk ratio of a fundus images using matlab...
meer dan 12 jaar 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 ...
meer dan 12 jaar ago | 3 answers | 0
3
answersQuestion
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...
meer dan 12 jaar ago | 2 answers | 0
2
answersQuestion
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; ...
meer dan 12 jaar ago | 1 answer | 0
1
answerPlot Problem
x=.1:.1:4*pi; y=(sin(pi*x))./(pi*x); plot(x,y) Is this working?
meer dan 12 jaar 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...
meer dan 12 jaar ago | 0 answers | 0
0
answersQuestion
Multivariate Guassian Distribution
* I want to learn Multivariate Gussian distribution so I written the following code.* I am implementing following formula <...
meer dan 12 jaar ago | 2 answers | 1
2
answersGood programming practice...
I got good help from matlab datasheets for matlab programming tips http://www.mathworks.in/help/pdf_doc/matlab/programming_...
meer dan 12 jaar 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...
meer dan 12 jaar ago | 16 answers | 7
16
answersQuestion
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...
meer dan 12 jaar ago | 2 answers | 0
2
answersQuestion
matrix manipulation
>> A A = 7 0 6 9 8 7 6 9 7 >> B B = 3 ...
meer dan 12 jaar ago | 1 answer | 0
1
answerQuestion
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) ... ....
meer dan 12 jaar ago | 2 answers | 0
2
answersQuestion
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...
meer dan 12 jaar ago | 1 answer | 0
1
answerQuestion
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...
meer dan 12 jaar ago | 1 answer | 0
1
answerQuestion
PCA values
I have written following code to learn about PCA. clear all clc load hald hald=ingredients; [m n]=size(hald); ...
meer dan 12 jaar ago | 1 answer | 0
1
answerQuestion
matlab preloaded 'load' files
matlab consist some preloaded load files for example >>load cities >>load hald >>load moore I want to know all other ...
meer dan 12 jaar ago | 2 answers | 0
2
answersQuestion
sort a matrix depending on first row
I have a matrix B >> B B = 5.0000 1.0000 6.0000 3.0000 0.6076 0.4943 0.1097 0.4754 ...
meer dan 12 jaar ago | 2 answers | 3
2
answers
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