How to round a result to 1 decimal place.

107 次查看（过去 30 天）
Amy Wong
Amy Wong 2017-12-6
编辑： Adam 2017-12-6
I have a data of 4096x64 and would like to round it to 1 decimal place. When I use DATA = round(DATA,1), the error 'Too many input arguments' appear. Is there any other way to do this?

请先登录，再回答此问题。

回答（1 个）

Adam
Adam 2017-12-6
Which version of Matlab do you have?
round( data * 10 ) / 10;
is a fairly standard alternative.
  4 个评论
显示 2更早的评论
Amy Wong
Amy Wong 2017-12-6
编辑：Amy Wong 2017-12-6
Like if my value is 0.33333, I want to get 0.3. But the result is 0.3000. Is there a way to remove the 0 at the back?
Adam
Adam 2017-12-6
编辑：Adam 2017-12-6
Not every decimal number is precisely representable in a double (after all, there are an infinite number of floating point numbers and clearly there are not an infinite number of bit-representations to represent these).
Why do you need it to be precisely 0.3?
Note: round( 0.3333, 1 ) in later Matlab also gives an answer with a lot of trailing 0s that isn't 100% precise to 1dp.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Logical 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