[R] factor2real strange!?

[Uwe Ligges]

christian schulz wrote:

> Hi,
> 
> i get factors from oracle instead real or numeric, but have problems
> to convert. Where is my mistake? I can't rember have
> this difficulties like this?
> 
> many thanks,
> christian


Please look at your numbers: "9,93", this includes "," instead of the 
correct decimal point "." ....

Uwe Ligges


>  > vsub <- subset(dm,select=c(DEBITS_POST3))
>  > (vsub$DEBITS_POST3[1:4])
> [1] 9,93  0     23,82 32,72
> 7936 Levels: 0 0,53 0,65 0,73 0,76 1,02 1,03 1,16 1,25 1,28 1,31 1,38 
> 1,45 1,47 1,49 1,52 1,53 1,62 1,68 1,69 1,71 1,72 1,9 10,03 ... 99,98
>  > vsub$DEBITS_POST3   <-  
> as.numeric(levels(vsub$DEBITS_POST3))[as.integer(vsub$DEBITS_POST3)]
> Warning message:
> NAs introduced by coercion
>  > (vsub$DEBITS_POST3[1:4])
> [1] NA  0 NA NA
>  > vsub <- subset(dm,select=c(DEBITS_POST3))
>  > vsub$DEBITS_POST3   <-  
> as.numeric(levels(vsub$DEBITS_POST3))[as.real(vsub$DEBITS_POST3)]
> Warning message:
> NAs introduced by coercion
>  > (vsub$DEBITS_POST3[1:4])
> [1] NA  0 NA NA
>  >
>  > vsub$DEBITS_POST3   <-  as.real(vsub$DEBITS_POST3)
>  > vsub <- subset(dm,select=c(DEBITS_POST3))
>  > vsub$DEBITS_POST3   <-  as.real(vsub$DEBITS_POST3)
>  >
>  > (vsub$DEBITS_POST3[1:4])
> [1] 7603    1 2964 4029
>  > vsub <- subset(dm,select=c(DEBITS_POST3))
>  > vsub$DEBITS_POST3   <-  
> as.numeric((vsub$DEBITS_POST3)[as.real(vsub$DEBITS_POST3)]
> + (vsub$DEBITS_POST3[1:4])
> + )
> Error in 
> as.numeric((vsub$DEBITS_POST3)[as.real(vsub$DEBITS_POST3)](vsub$DEBITS_POST3[1:4])) 
> :
>        attempt to apply non-function
>  > vsub$DEBITS_POST3   <-  
> as.numeric(vsub$DEBITS_POST3)[as.real(vsub$DEBITS_POST3)]
>  > vsub <- subset(dm,select=c(DEBITS_POST3))
>  > vsub$DEBITS_POST3   <-  
> as.numeric(vsub$DEBITS_POST3)[as.real(vsub$DEBITS_POST3)]
>  > (vsub$DEBITS_POST3[1:4])
> [1]    1 7603 5848  917
>  >
> 
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