Put a given sequence on time slots
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For example, I have 48-time slots (t) and I want to put a block of a sequence [1,1,0,0] on these time slots randomly from (t+n) to (t+n+4). How can i generate such a sequence.
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Walter Roberson
2018-10-12
n = randi(length(t) - 3)
t(n:n+3) = [1 1 0 0]
4 个评论
Daud
2018-10-15
编辑：Walter Roberson
2018-10-19
Walter Roberson
2018-10-19
You did not follow my instructions to use randi. Also, you appear to be wanting to put in multiple copies of the block.
The below code puts in a configurable number of copies of d.
This code makes no attempt to backtrack if it gets stuck, so in theory it could get stuck after placing as few as 7 copies of length 4 into your array of length 48, such as an occupancy pattern of
000111100011110001111000111100011110001111001111
I assume in this code that it is not permitted to overlap even in places where d is 0 -- so, for example, that it is not permitted to generate 1101100 even though after dropping in the first 1100 that the 4th position is 0: I deem that anything initialized with a value from d cannot be written to again.
m = zeros(1, 48);
d = [1 1 0 0];
num_copies = 3; %put d into m this many times
used = false(size(m));
Ld = length(d);
for K = 1 : num_copies
while true
n = randi(length(m) - Ld + 1);
if ~any(used(n:n+Ld-1)); break; end
end
m(n : n + Ld - 1) = d;
used(n : n + Ld - 1) = true;
end
Hiba Haider
2023-1-20
hello dear
same idea i have 24 slot for example i want choose one slot from slot 11 to slot 22 how can i apply
Walter Roberson
2023-1-20
randi([11 22])
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