Create a row vectors that includes even/odds between 0 and X
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How can I created a row vector that includes every even/odd number BETWEEN two variables but does not include them. ie x=10 y=20 vector=[12 14 16 18]
採用された回答
Azzi Abdelmalek
2013 年 2 月 15 日
x=10;
y=20;
v=x+1:y-1
v_even=v(mod(v,2)==0)
v_odd=v(mod(v,2)~=0)
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その他の回答 (2 件)
John BG
2015 年 10 月 12 日
Also possible: find(mod(X,2)==0) and find(mod(X,2)~=0)
2 件のコメント
Image Analyst
2015 年 10 月 12 日
Not as-is -- you'd need to add code:
X = 10:20
oddNumbers = find(mod(X,2)==0)
gives
X =
10 11 12 13 14 15 16 17 18 19 20
oddNumbers =
1 3 5 7 9 11
which is not [11,13,15,17,19], but if you added all but the last element to the first element of the original X, it would work.
John BG
2016 年 2 月 13 日
Should have added the X(),
find(mod(X,2)~=0)
does give the positions of the odd elements of X
ans = 11.00 13.00 15.00 17.00 19.00
and
find(mod(X,2)==0)
gives the even elements of X
ans = 10.00 12.00 14.00 16.00 18.00 20.00
Alternatively
nonzeros(mod(X,2).*X)'
also gives the odd elements of X
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