- Exactly 50 of the 100 elements of the result are +1 and exactly 50 are -1, but the order in which they appear in the result is random?
- Any individual element is 50% likely to be +1 and 50% likely to be -1?
- Any element has probability p of being +1 and (1-p) of being -1? When p is 0.5 this simplifies to the second case.
- You have a transition matrix giving the probability of the next element being +1 or -1 if the current element is +1 or -1? In the example below, most of the time +1 follows +1 and -1 follows -1 but the result can switch. [This requires Statistics and Machine Learning Toolbox.]
Generating two Random sequences
2 views (last 30 days)
Show older comments
What is the best way to generate two random sequences that are 100 characters long and randomly comprised of +1 and -1. Also what is the best way to capture those values and plot in a histogram for each sequence, as well as the spectral analysis for each sequence?
3 Comments
Jeff Miller
on 19 Jan 2021
The coin flip is bullet point 2, not 1, because 100 coin tosses will rarely end up exactly 50/50.
Answers (1)
KALYAN ACHARJYA
on 19 Jan 2021
Edited: KALYAN ACHARJYA
on 19 Jan 2021
Hint: One Way, you can do multiple ways
data=repmat([1,-1],[1,50])
seq1=data(randperm(100));
seq2=data(randperm(100));
Fore histogram, refer hist function
0 Comments
See Also
Categories
Find more on Multirate Signal Processing in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!