how to create a vector with certain range of values
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ekko ekkosen
il 13 Mag 2015
Risposto: Walter Roberson
il 13 Mag 2015
how can i create a vector where i chose that the first n numbers in the vector is 0 and then from n+1 the values are 1 to end. example if n =3 and the vector is 10 long then it would be [0 0 0 1 1 1 1 1 1 1]. or if n = 2 than [0 0 1 1 1 1 1 1 1 1]. i will be using this on a vector that is 1X250 and is changing the n 250 times in a for loop.
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Chad Greene
il 13 Mag 2015
There should be no need for a loop. Enter any value for n:
n = 3;
v = zeros(1,250);
v(n+1:end) = 1;
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Walter Roberson
il 13 Mag 2015
[zeros(1,n),ones(1,TheLength - n)]
However if this is in a "for" loop and you are certain that the loop is being run in order, then
V = ones(1,TheLength);
for n = 1 : TheLength
V(n) = 0;
...
end
this zeros one more entry every iteration, which is less work than building a new vector
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