PChoppala
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My research interests include Bayesian statistics, spatial modelling, machine learning, stochastic signal processing and particle filtering.
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Awarded to PChoppala on 09 Oct 2019
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Awarded to PChoppala on 20 Jul 2017
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Frage
What is the duration of Mathworks Matlab Online student license?
Hello, I use Matlab online for programming. I have run out on my 20 hours per month limit and would like to purchase a basic stu...
2 Monate vor | 1 Antwort | 0
1
AntwortFrage
covariance of weighted multidimensional samples
I have a multidimensional weighted sample set, e.g. D=2; % dimension N=100; % number of samples x=randn(D,N); % samples ...
mehr als 8 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
sampling from a normal distribution
I usually generate a sample from a normal distribution N(mu,sigmasq) (where mu is the mean and sigmasq is the variance) as follo...
mehr als 8 Jahre vor | 0 Antworten | 0
0
AntwortenDefine a matrix A of dimension 2*4 whose (i , j) entry is A(i , j)=i+j
[P1,P2]=meshgrid(1:4,1:2) result=P1+P2
fast 9 Jahre vor | 0
I can't put two lines in one legend on matlab in my plot
string1 = 'xyz'; string2 = 'abc'; value=3.14; sprintf('%.2f %s %s \n %s',value,string1,string2,string2)
fast 9 Jahre vor | 0
Problem with legend in a plot
An example (although there are better ways of doing it), n=50; x=linspace(1/n,1,n); y1=sin(4*pi*x); y2=cos(4*pi*x(10:3...
fast 9 Jahre vor | 0
object detection from frames
This is not a MATLAB specific question. Look here <http://au.mathworks.com/discovery/object-recognition.html> or try machine lea...
fast 9 Jahre vor | 0
Frage
accessing elements inside cell arrays
I am not a great user of cell arrays and haven't found my answer precisely on other links, hence the question. I have a cell arr...
fast 9 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Color coding commented statements and comments following a statement
Hi, I would like to know if there is a possibility of having a different color for a commented statement and a comment that ...
etwa 9 Jahre vor | 5 Antworten | 7
5
AntwortenFrage
plotting with different colors
Hi, I have to plot something like x=0.1:0.1:1; n=length(x); f=exp(x); y=f+0.1*randn(1,n); figure ...
etwa 9 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Bar plot with a single bar across multiple x-axis values
I need to plot a single horizontal bar across multiple x-axis values, e.g., y=[2 1 3]; bar(1:6,y(1),'c', 2:5,y(2)...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
using rand to generate numbers
Hi I have a simple question. I understand that both a and b vectors (please see below) will generate 5 random numbers from 0 ...
etwa 11 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
cdf of multivariate normal random numbers
Hi I want to find the cdf of a set of 1000 bivariate normal random numbers that are generated by X=mvnrnd([3,12],[1,.2;....
mehr als 11 Jahre vor | 1 Antwort | 0
1
AntwortFrage
finding the starting points of the steps in a staircase like function
Hi I will appreciate help on this problem: I generate a vector C from a set of weighted samples (you can see in the figure...
mehr als 11 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Sharing the values between vectors
Hi I will appreciate your support on this: I have a 3 x 9 matrix f with some finite and non-finite values. I have to manip...
mehr als 11 Jahre vor | 1 Antwort | 0
1
AntwortFrage
integrating the product of two pdf's
Hi I have a small query, and will appreciate your help. I am supposed to find the integral of the product of two probabil...
etwa 12 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
bimodal Gaussian distribution function
Hi Greetings. I have a simple problem and will appreciate your help. I am trying to plot the bimodal Gaussian distribution...
etwa 12 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
filter, decay, delayed versions
Hello everyone, I need advice on a simple query. I need a FIR filter which has decay time specified by me. The filter...
etwa 12 Jahre vor | 1 Antwort | 0
1
AntwortFrage
finding multiple maxima in a Gaussian distribution
Hi I have a query and will appreciate your help. If we try the code below, >> c1=1; >> for p=-50:50 c2=1; fo...
mehr als 12 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
round, randn
Hello Simple query. Suppose I assign y=randn(4,1), I get a 4X1 matrix with random numbers which have (may be) 3-4 number a...
fast 13 Jahre vor | 1 Antwort | 0
1
AntwortFrage
reverberation in matlab
Hi I have a broadband signal x(t) as x = randn(1,100); Fs = 48e3; Do we have any inbuilt function or a standard procedur...
fast 13 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
surf, plotting, axis
Hi Simple question.... I have an output 'P' which is a 10X10 matrix. I start with for i=1:10 for j=1:10 P...
fast 13 Jahre vor | 1 Antwort | 0
1
AntwortFrage
fft
Hi Just an urgent but simple question. I have a signal s = randn(1,100), with Fs = 48e3 Hz. I want to add a delay of 1.3ms...
fast 13 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
upsampling and adding delay to a sequence
Hi I have a simple query. Suppose i have a signal s = randn(1,10), if I want to add delay 100ms to this signal, what sho...
fast 13 Jahre vor | 1 Antwort | 0
1
AntwortFrage
randn, broadband signal
Hi Another simple question with regard to my last question on broadband signal delay. Can we treat t=0:1/100:1 s=sin(2*...
fast 13 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
how to add delay to a signal
Hi I have a small query. Can you help me to add delay to a signal s=randn(1,100); But the delay is given in time domain, ...
fast 13 Jahre vor | 3 Antworten | 1
3
AntwortenFrage
broad band signal
Hi there For my simulations, I need to generate a broadband signal s(t). Also, at a later stage, I need s(t-D),(I will sep...
fast 13 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
mathematical expectation
Hi Suppose we have a vector X=[1 2 -1 5 2], I want the mathematical expectation E{x*x'}, can you please help me with that sta...
fast 13 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
randn, awgn, wgn
Hi I have a small doubt. Is a = awgn(randn(20,20), 6.7) and a = wgn(20,20,6.7) the same Aim is, I want a 20X20 fram...
fast 13 Jahre vor | 1 Antwort | 0
1
AntwortFrage
secons max number in a vector
Hi I need to find maximum and second maximum number in a vector. Can you please help? For max, its max(X), but for second max...
fast 13 Jahre vor | 1 Antwort | 0
1
Antwort
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