R: Convert from string to double

Question

I am trying to convert from string to double in R. However, every time I convert a number, R creates an integer.

For example:

a = "100.11"  
a = as.double(a)

And the output is outputting 100

. How to preserve decimal places when converting from string to numeric? I installed options(digits=3)

.

thank

Mike

+3

string double r

Mike 04 nov. 14 at 12:14

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1 answer

Roland · Accepted Answer · 2014-11-04T12:28:57+0000

The problem is that you have installed:

options(digits=3)
as.double("100.11")
#[1] 100
options(digits=5)
as.double("100.11")
#[1] 100.11

digits

"controls the number of digits to print when printing numeric values." You set option 3 and 3 digits are displayed.