Mean of an Array Containing some NAN Elements

5 次查看（过去 30 天）
Fabio Taccaliti
Fabio Taccaliti 2022-7-7
回答： Vijeta Singh Yadav 2022-7-7
Hello, I have two different arrays, A2 (96x96 doubles) and A3 (96x96x96 doubles), in both these arrays some elements inside are NAN.
I would like to compute the mean (single value for each array) of all the non-NAN values, how can I do it?
I tried with mean(A2) and mean(A3) but is not working

请先登录，再回答此问题。

采纳的回答

KSSV
KSSV 2022-7-7
编辑：KSSV 2022-7-7
Ran in:
Read the doc of mean, there is option of omitting nan.
A = [1 2 NaN 3 4 NaN] ;
mean(A,'omitnan')
ans = 2.5000
In older versions it is nanmean.
  2 个评论
Fabio Taccaliti
Fabio Taccaliti 2022-7-7
Thanks, how can I do the mean of all the components, because right now is giving me a 1x96 array
KSSV
KSSV 2022-7-7
Again read the doc, you cn specify the dimension to calculate the mean.

请先登录，再进行评论。

更多回答（1 个）

Vijeta Singh Yadav
M = mean(___,nanflag)
This function will define whether to exclude or include NaN values from the computation of any previous syntaxes.
It has the following 2 types:
  • Mean(X,’omitNaN’): It will omit all NaN values from the calculation
  • Mean(X,’includeNaN’): It will add all the NaN values in the calculation.
Refer to Matlab Documentation for more information.

类别

在 Help Center 和 File Exchange 中查找有关 NaNs 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by