How can I join two vectors (integer and decimal)?

2018 11 24
2 个回答
回答已采纳
更新时间：2018 11 26
8 次查看（30 天）

0 个投票

I have two vectors for the same number (type double): one is the integer part and the other is the decimal part. Both the same lenght. Can I join them in one vector?
I have A = [1 2 3 4 5]; B = [6 7 8 9 10];
I want a vector C = [1.6 2.7 3.8 4.9 5.10];
Thanks in advance.

5 个评论
显示 3更早的评论 隐藏 3更早的评论

dpb
dpb 2018-11-24
How would you do it w/ pencil and paper if required to "show your work?"
Can you do that in ML?
Antonio Amor
Antonio Amor 2018-11-24
I suposse that I would divide the decimal vector by 10^n, where n is the lenght of each number. Then, I would add the decimal and the integer vectors. But no, I can't do it in Matlab, it's my first day.
dpb
dpb 2018-11-24
Close but why the n? Your fraction is the tenth's location by the problem description.
What have you tried; have you worked through the "Getting Started" tutorials on Matlab syntax and operators (paying particular attention to array operations)?
Antonio Amor
Antonio Amor 2018-11-24
The n is because not all the numbers of the decimal vector have the same length.
That's what I am going to do: I'm going to read some tutorials. The problem is that the deadline for the work I have to do is next Tuesday and I have no idea!
Thank you so much!
dpb
dpb 2018-11-24
Ah! I didn't notice the actual numbers...good catch! I was going for the specific trivial answer.
Look up "dot" operators by reading section on Array vs. Matrix Operations for how to handle the array "the Matlab way".
How can you compute the magnitude of the values to which need respectifve power of B (a specific transcendental function may come to mind)???

请先登录，再进行评论。

请先登录，再回答此问题。

 采纳的回答

madhan ravi
madhan ravi 2018-11-24
编辑：madhan ravi 2018-11-24

1 个投票

One nasty way which is highly discouraged:
>> A = string([1 2 3 4 5]);
B = string([6 7 8 9 10]);
C=strcat(A,'.',B);
C=str2double(C)
C =
1.6000 2.7000 3.8000 4.9000 5.1000
>>

2 个评论
显示 无 隐藏 无

Antonio Amor
Antonio Amor 2018-11-24
Nasty or elegant, is suitable and useful.
Thank you!
madhan ravi
madhan ravi 2018-11-24
Anytime :) , MATLAB makes life a lot more easier so take your classes seriously , it will help you in your higher studies, HAPPY MATLAB(ing).

请先登录，再进行评论。

更多回答（1 个）

dpb
dpb 2018-11-24

2 个投票

C=A+B./10.^fix(log10(B)+1);

7 个评论
显示 5更早的评论 隐藏 5更早的评论

dpb
dpb 2018-11-24
I didn't really want to post the solution but to try to lead OP towards it...but it appeared he bailed out early...
madhan ravi
madhan ravi 2018-11-24
Clearly understood @dpb :)
dpb
dpb 2018-11-24
编辑：dpb 2018-11-24
As were your self-deprecating comments to your "Answer"... :)
madhan ravi
madhan ravi 2018-11-24
That’s why your referred as a true motivator ❤️
dpb
dpb 2018-11-26
编辑：dpb 2018-11-26
Awwww...blushes... :)

请先登录，再进行评论。

类别

在 帮助中心 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

产品

版本

R2018b

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by