R:指数返回无穷大 [英] R: Exponent returning infinity

问题描述

我需要删除我的数据的对数，因此将e用作对数值的幂.

I need to remove logarithms of my data and thus am taking e to the power of the values which are logarithmed.

我的问题是，当我拥有大于709 R的幂的e时，将返回无穷大的值.我该如何超越呢?

My issue is that when I have e to the power of more than 709 R returns the value of infinity. How can I surpass this?

e ^ 710 [1] Inf

e^710 [1] Inf

谢谢:)

推荐答案

如果您真的想使用较大的数字，则可以使用Rmpfr包.

If you really want to work with numbers that big you can use a Rmpfr package.

library('Rmpfr')

x <- mpfr(710, precBits = 106)
exp(x)

1 'mpfr' number of precision  106   bits 
[1] 2.233994766161711031253644458116e308

这篇关于R:指数返回无穷大的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！