[R] Failed to convert data to numeric

[Ivan Krylov]

В Mon, 3 Mar 2025 12:08:43 +0530
Christofer Bogaso <bogaso.christofer using gmail.com> пишет:

> dat2 = c("-24.437285333333300", "4.850695000000000",
> "-1.918495666666670",
> 
> "2.641818000000000", "6.777527666666670", "3.208084000000000",
> 
> "4.193287666666670", "0.378257666666667", "4.658955000000000",
> 
> "-9.881474000000000")
> 
> Now when I try to convert this data to numeric, I got NA as below
> 
> > as.numeric(dat2)  
> 
>  [1] -24.4372853   4.8506950  -1.9184957   2.6418180   6.7775277
> 3.2080840
> 
>  [7]   4.1932877   0.3782577   4.6589550          NA

There's an invisible Unicode character in there, U+FEFF ZERO WIDTH
NO-BREAK SPACE:

> dat2 |> tail(1) |> tools::showNonASCII()
1: <ef><bb><bf>-9.881474000000000

Try as.numeric(gsub('\ufeff', '', dat2)).

-- 
Best regards,
Ivan