[R] How to improve accuracy of output?

[Rui Barradas]

Hello,

I cannot reproduce this print behavior, with digits=14, there are 14 
digits printed.


x <- c(98.718527356108, 103.10265923704)
x
#> [1]  98.71853 103.10266

old_dig <- options(digits = 14)
x
#> [1]  98.718527356108 103.102659237040

options(old_dig)


Maybe there's something else going on?

Hope this helps,

Rui Barradas

Às 15:00 de 24/05/2022, maithili_shiva--- via R-help escreveu:
> Dear Forum
> In my code, I am trying to compute Value at risk.
> I have an issue as mentioned below:
> I have defined
> 
> 
> options(digits = 14)
> But my output is something like
>>    df$price
> [1] 98.7185273         103.10265923  ............
> However, if use Excel, I get values as
> 98.718527356108 103.10265923704
> and so on.
> Is there any way I can improve on R output accuracy.
> Problem is If I use
> options(digits = 20)
> I still get same prices as when I was using options(digits = 14) and on the other hand my confidence level value, which should be equal to 0.99, gets distorted to 0.989999999999 impacting  Value at Risk value.
> Please guide
> Regards
> Maithreyi
> 	[[alternative HTML version deleted]]
> 
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