清空筛选条件
清空筛选条件

Norminv in Matlab 2012

1 次查看（过去 30 天）
Martin
Martin 2013-10-2
评论： Torsten 2016-7-1
Hi,
Is there an equivalent of norminv for Matlab 2012? It doesn't seem to work in this version. I just need the inverse of the "basic" normal distribution (parameters 0 and 1).
Thanks!
EDIT: the statistical toolbox (and not Matlab 2012) seems to be responsible for this. The question still holds though, is there such a function outside this toolbox?

请先登录，再回答此问题。

采纳的回答

Roger Stafford
Roger Stafford 2013-10-2
You can use matlab's 'erfinv' function to calculate the equivalent of 'norminv' according to the formula:
norminv(p) = sqrt(2)*erfinv(2*p-1)
  2 个评论
Joseph Schmidt
Joseph Schmidt 2016-6-30
How would you readjust this for a stan. dev. other than 1? Say a stan. dev. of .5 units.
Torsten
Torsten 2016-7-1
f(p) = mu + sqrt(2)*sigma*erfinv(2*p-1)
is the inverse CDF of the general normal distribution N(mu,sigma^2).
Best wishes
Torsten.

请先登录，再进行评论。

更多回答（1 个）

Martin
Martin 2013-10-2
Brilliant, thanks!

类别

在 Help Center 和 File Exchange 中查找有关 Hypothesis Tests 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