How to avoid inf

14 ビュー (過去 30 日間)
antonet
antonet 2014 年 5 月 29 日
回答済み: Udit Gupta 2014 年 5 月 29 日
Dear all,
I take the log of difference between two standard normal CDFs,
that is
D=log(normcdf()-normcdf())
but in most of the cases D=inf. Is there a way to avoid having inf?
Thanks in advance,

採用された回答

Udit Gupta
Udit Gupta 2014 年 5 月 29 日
Log of zero is -Inf. To avoid that add a small number before taking the log. For example -
D = log(normcdf() - normcdf() + 0.00001)

その他の回答 (0 件)

カテゴリ

Help Center および File ExchangeExponents and Logarithms についてさらに検索

タグ

Community Treasure Hunt

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

Start Hunting!

Translated by