Damiano Capocci
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質問
Peak "coordinates of a histogram
Hi, I want to study the histogram of an array. This array has only one peak, I want to determine the bin related to the peak. I ...
5年以上 前 | 2 件の回答 | 0
2
回答質問
Spectral test for Random Number Generator
Hi, does it exist a way to test the lattice structure of a congruential random generator using fft ? Or a code/function here on ...
6年以上 前 | 0 件の回答 | 0
0
回答質問
Runstest: a good interpretation
I've found this thing: I generate 100000 random numb through rand but sometimes the null hypotesis is rejected. For see this ...
6年以上 前 | 0 件の回答 | 0
0
回答質問
Runstest and corrcoef : difference and problems
Hi. I have noticed that if i use rand() function to generate for example 2*10^6 numbers and then *i evaluate the correlation coe...
6年以上 前 | 0 件の回答 | 0
0
回答回答済み
Determining optimal number of bins for chi squared distribution
More you have, better will be. if you have a great number of data you can go far with stand deviations because you will always h...
Determining optimal number of bins for chi squared distribution
More you have, better will be. if you have a great number of data you can go far with stand deviations because you will always h...
6年以上 前 | 0
質問
A good way to test uniform random number
Hi, i have got some generators i need to test. These produce uniform random numbers. I found only corrcoef() and runstest() are ...
6年以上 前 | 1 件の回答 | 0
1
回答質問
Complex numbers in ifft(fft(x))
Hi, i want to realize a convolution through fft and i also want to compare the time required for this process between gpu and cp...
6年以上 前 | 2 件の回答 | 0
2
回答質問
P value of corrcoef() is aways different !
Hi, in my tests i've introduced Matlab corrcoef(). But if i repeat this test i'm used to obtain different results for p value. T...
6年以上 前 | 1 件の回答 | 0
1
回答質問
How to use a Mupad function in Matlab workspace
Hi, i want to use the function numlib::igcdmult because my aim is to apply the extended euclid algorithm for multiple argume...
6年以上 前 | 1 件の回答 | 0
1
回答質問
Arrayfun - problem with input array
I've found this kind of problem: clear all; a=[3,7,9,5,11,2]; b=[1,2,3,4,5,6]; l=[1,0,0,0,0,0]; f=@(x,z,y) x*l(...
6年以上 前 | 1 件の回答 | 0
1
回答質問
Efficient self-referential loop using GPU
I have lots of problems using for in GPU computing becuse it take a huge amount of time (as u know). My kind of loop is particul...
6年以上 前 | 1 件の回答 | 0
1
回答質問
Strange values in convolution (using FFT through gpu)
I want to realize a code in which i use the convolution for GPU computing. So I'm studying all the characteristics of convulutio...
7年弱 前 | 0 件の回答 | 0
0
回答質問
A self assignment from scalar product
Hi there, i want to have a variable x which is involved in a scalar product with another vector but the result becomes an elemen...
7年弱 前 | 0 件の回答 | 0
0
回答質問
Vectorization for dependent loops
Hi i want vectorize this code : a(1)= 1 ; for g=1:len_1 % len_1 >> len_2 for c=0:min(g-1,len_2...
7年弱 前 | 0 件の回答 | 0
0
回答質問
Arrayfun - for conversion
I want to replace for loop with arrayfun but i don't have idea. In this case there is a particular dependence the two foor's. Ev...
7年弱 前 | 0 件の回答 | 0
0
回答質問
Arrayfun for a particukar nested loop in GPU computing
Hi i've this situation (CPU): X(1)= first_step; for k=1:length_1 for p=0:min(k-1,length_2) X(k+1)=X(k+1)+j(p+1...
7年弱 前 | 0 件の回答 | 0
0
回答質問
Vectorizing for loops - an efficient way to do it
Hi, i want to know how should i vectorize two loops like this: length=100000; limit=8; j=primes(9000); j=j(randp...
7年弱 前 | 0 件の回答 | 0
0
回答質問
Comparison for/vectorization- some general advice
Hi, i'm trying to vectorize my code. But i have recently found this: clear all; tic k=zeros([1,10000]); a=1:1000...
7年弱 前 | 1 件の回答 | 0
1
回答回答済み
avoid negative index in array or matrix
Yes, all of u are right in particular david, my code is a bit complex so i've tried to explain the question giving the idea of m...
avoid negative index in array or matrix
Yes, all of u are right in particular david, my code is a bit complex so i've tried to explain the question giving the idea of m...
7年弱 前 | 0
質問
avoid negative index in array or matrix
I'm working on 2 loops in which i have the difference of two indices like this: for i=1:interval_1 for j=0:interval_2 ...
7年弱 前 | 3 件の回答 | 0
3
回答質問
Multiple input delay block (simulink)
I need more inputs for delay block, how should i do?
7年弱 前 | 1 件の回答 | 0
1
回答質問
Is there in Matlab a test for random numbers?
Hi, i'm working on RNG, for this reason i've to test my results. Is there any test in a toolbox? I'm looking for something like ...
約7年 前 | 1 件の回答 | 0
1
回答質問
Does it exist function for a Simulink model related to time (more or less like 'now') ?
I'm working on a FPGA project, i want to have a function which gives values related to time (current). Unfortunately "now" is no...
約7年 前 | 1 件の回答 | 1
1
回答質問
Does it exist a function which is similar to time() function of C ambient ?
Hi, i'm working with random number generation, I would like to know if exists, in Matlab, a function like time(0) of C ambient (...
約7年 前 | 2 件の回答 | 0
2
回答質問
Obtaining all zeros from rand
Hi, i'm working with rand but when i do x(1,9)=rand the vector x has the first eight components are always equal to zero, in par...
約7年 前 | 1 件の回答 | 0
1
回答質問
Campus License - Sapienza Università di Roma
May you tell me when Campus License will be activated? I need MatLab latest version for my lab project in particular for the FPG...
7年以上 前 | 1 件の回答 | 0