R help - Aug 2012 - How to convert data to 'normal' if they are in the form of standard scientific notations?

Dear R users

I read two csv data files into R and  called them Tem1 and Tem5.

For the first column, data in Tem1 has 13 digits where in Tem5 there are 14
digits for each observation.

Originally there are 'numerical' as can be seen in my code below.  But
how
can I display/convert them using other form rather than scientific
notations which seems a standard/default?

 I want them to be in the form like '20110911001084', but I'm very
confused
why when I used 'as.factor' call it works for my 'Tem1' but not
for
'Tem5'...??


Many thanks!

HJ
> Tem1[1:5,1][1] 2.10004e+12 2.10004e+12 2.10004e+12 2.10004e+12
2.10004e+12> Tem5[1:5,1][1] 2.011091e+13 2.011091e+13 2.011091e+13
2.011091e+13 2.011091e+13> class(Tem1[1:5,1])[1] "numeric">
class(Tem5[1:5,1])[1] "numeric"> as.factor(Tem1[1:5,1])[1]
2.10004e+12 2.10004e+12 2.10004e+12 2.10004e+12 2.10004e+12
Levels: 2.10004e+12> as.factor(Tem5[1:5,1])[1] 20110911001084
20110911001084 20110911001084 20110911001084 20110911001084
Levels: 20110911001084

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HJ,

You don't provide any reproducible code, so I had to make up my own. 

dat <- data.frame(a=letters[1:5], x=c(20110911001084, 20110911001084, 
        20110911001084, 20110911001084, 20110911001084),
        y=c(2.10004e+12, 2.10004e+12, 2.10004e+12, 2.10004e+12, 
2.10004e+12))

In my example, the long numbers print out without scientific notation.

dat
  a              x             y
1 a 20110911001084 2100040000000
2 b 20110911001084 2100040000000
3 c 20110911001084 2100040000000
4 d 20110911001084 2100040000000
5 e 20110911001084 2100040000000

I can make it print with scientific notation using the digits argument to 
the print() function.

print(dat, digits=3)
  a        x       y
1 a 2.01e+13 2.1e+12
2 b 2.01e+13 2.1e+12
3 c 2.01e+13 2.1e+12
4 d 2.01e+13 2.1e+12
5 e 2.01e+13 2.1e+12

What is your default number of digits?
getOption("digits")

Jean


HJ YAN <yhj204@googlemail.com> wrote on 08/06/2012 11:14:17
AM:
> 
> Dear R users
> 
> I read two csv data files into R and  called them Tem1 and Tem5.
> 
> For the first column, data in Tem1 has 13 digits where in Tem5 there are 
14
> digits for each observation.
> 
> Originally there are 'numerical' as can be seen in my code below. 
But
how
> can I display/convert them using other form rather than scientific
> notations which seems a standard/default?
> 
>  I want them to be in the form like '20110911001084', but I'm
very
confused
> why when I used 'as.factor' call it works for my 'Tem1' but
not for
> 'Tem5'...??
> 
> 
> Many thanks!
> 
> HJ
> 
> > Tem1[1:5,1][1] 2.10004e+12 2.10004e+12 2.10004e+12 2.10004e+12 2.
> 10004e+12> Tem5[1:5,1][1] 2.011091e+13 2.011091e+13 2.011091e+13 2.
> 011091e+13 2.011091e+13> class(Tem1[1:5,1])[1] "numeric">
class(Tem5
> [1:5,1])[1] "numeric"> as.factor(Tem1[1:5,1])[1] 2.10004e+12
2.
> 10004e+12 2.10004e+12 2.10004e+12 2.10004e+12
> Levels: 2.10004e+12> as.factor(Tem5[1:5,1])[1] 20110911001084
> 20110911001084 20110911001084 20110911001084 20110911001084
> Levels: 20110911001084
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