binary sequence input output
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I made a random binary sequence x
I want the output to be 5 + N when x =1 and N when x = 0
How can I make this work?
回答（2 个）
Walter Roberson
2020-4-11
0 个投票
N+5*x
2 个评论
Dawon Yoo
2020-4-11
Walter Roberson
2020-4-11
Of course there is.
if this_x == 1
output_location = N + 5;
else
output_location = N;
end
where this_x one particular entry chosen from x, and where output_location is the place you want to store the result for this particular x entry.
You could also look at:
all_output_locations = all_N_values;
Then examining one x value at a time,
if this_x == 1
output_location = output_location + 5;
end
where this_x is one particular entry chosen from x, and where output_location refers to the corresponding location inside all_output_locations.
Yes, you are correct, I am deliberately not giving you the complete code, as it is obvious that you are working on homework involving arrays, so you should be reading about array indexing.
Image Analyst
2020-4-11
Is this homework? If not, here is one way (of many):
x = randi([0, 1], 1, 20) % Create binary sequence of 0's and 1's
N = 3; % Whatever it is....
% Make everything N to start with.
output = N * ones(1, length(x))
% Now need to add 5 to ONLY those indexes in x that have a value of 1.
output(logical(x)) = output(logical(x)) + 5
You get:
x =
0 1 1 0 1 0 0 1 1 1 0 1 0 0 0 0 1 0 1 0
output =
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
output =
3 8 8 3 8 3 3 8 8 8 3 8 3 3 3 3 8 3 8 3
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2020-4-11
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