Computing values from a subsection of a data file

2011 12 29
1 个回答
回答已采纳
6 次查看（30 天）

0 个投票

Greetings all,
As I brush the rust off of MATLAB gradually ;) I'm trying to compute values from a particular data file for a simulation I am doing. The problem is, the results aren't quite right, except for the first value.
So my code is:
z1 = data(1:10,2);
Rz1 = 1/(sqrt(4*z1.^2 + 1))
Now, data(1:10,2) is from my data file where elements 1 through 10 in column 2 are all zero, and according to the equation I stated at Rz1, all the results should be one (so in essence a row of 10 ones). But I get 1 0 0 0 0 0 0 0 0 0 0 as my output, which is not correct.
Can someone point out my mistake? I figure I'll ask this now since my computation gets more complex from here on out, so I want to get it right.
Thanks!
Jesse

请先登录，再回答此问题。

 采纳的回答

Fangjun Jiang
Fangjun Jiang 2011-12-29

1 个投票

Very close. Just missed one dot.
%z1 = data(1:10,2);
z1=zeros(10,1);
Rz1 = 1./(sqrt(4*z1.^2 + 1))

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Develop Apps Using App Designer 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by