How to insert an element after each number in a vector?
15 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
laith Farhan
am 5 Mai 2019
Kommentiert: Star Strider
am 5 Mai 2019
Dear all,
I would like to add an element after each value in a vector, for example:
a=[10,2,40,58,100,90,40,30,4];
I would like to add 1 to vector values:
result = [1,10,1,2,1,40,1,58,1,100,1,90,1,40,1,30,1,4,1];
Help me please.....
1 Kommentar
Image Analyst
am 5 Mai 2019
Instead of "after each number" don't you mean "after each number, EXCEPT the first number, where the number is also before the first number?" That's what Star and Adams solutions do. Or do you really mean what you said, instead of the "result" you gave, and so there would be no 1 at the beginning?
Akzeptierte Antwort
Star Strider
am 5 Mai 2019
One approach:
a=[10,2,40,58,100,90,40,30,4];
result = [ones(size(a)); a];
result = [result(:); 1]'
producing:
result =
1 10 1 2 1 40 1 58 1 100 1 90 1 40 1 30 1 4 1
4 Kommentare
Weitere Antworten (2)
Adam Danz
am 5 Mai 2019
result = [reshape([ones(size(a));a],length(a)*2,1);1]';
3 Kommentare
KALYAN ACHARJYA
am 5 Mai 2019
Bearbeitet: KALYAN ACHARJYA
am 5 Mai 2019
Nice one, +1, I tried, but can't
Image Analyst
am 5 Mai 2019
Instead of "after each number" did you mean "after each number, EXCEPT the first number, where the number is also before the first number?" That's what Star and Adam's solutions do. Or do you really mean what you said, instead of the "result" you gave, and so there would be no 1 at the beginning?
Just to be complete and cover all ambiguities, I'll give the other solution. If you really want what you said in words, rather than the numerical result you gave, then use this code:
result = [a; ones(size(a))]
result = result(:)'
The result is:
result =
10 1 2 1 40 1 58 1 100 1 90 1 40 1 30 1 4 1
Note: 1's are only after the numbers and not before the first one.
Siehe auch
Kategorien
Mehr zu 2-D and 3-D Plots finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!