[R-SIG-Finance] na.omit.xts unsupported type error

Worik Stanton worik.stanton at gmail.com
Tue May 17 03:31:51 CEST 2011


Dang!

 > Q.x[,1] <- as.numeric(Q.x[,1])
 > na.omit(Q.x[,1])
Error in na.omit.xts(Q.x[, 1]) : unsupported type

That is surprising.  Any ideas why I cannot coerce it to numeric?

 > Z.x <- xts(as.numeric(Q.x[,1]), index(Q.x))
 > Z.x
                    [,1]
1977-01-05  0.006571315
1977-01-06 -0.012214300
1977-01-10 -0.010448345
1977-01-12 -0.012253432
1977-01-17 -0.004359331
1977-01-19  0.001865568

That works.  So I have no crises, but it is odd.

W

On 17/05/11 12:02, Joshua Ulrich wrote:
> On Mon, May 16, 2011 at 5:59 PM, Worik Stanton<worik.stanton at gmail.com>  wrote:
>> Friends
>>
>> I cannot see what I am doing wrong.
>>
>> I have xts
>>
>>> Q.x
>>            return                 colour
>> 1977-01-05 "0.00657131520848225"  "RED"
>> 1977-01-06 "-0.012214299603114"   "RED"
>> 1977-01-10 "-0.0104483453737235"  "RED"
>> 1977-01-12 "-0.012253432045205"   "RED"
>> 1977-01-17 "-0.00435933050375995" "RED"
>> 1977-01-19 "0.00186556754505644"  "RED"
>>
>>> na.omit(Q.x)
>> Error in na.omit.xts(Q.x) : unsupported type
>>
>>> class(Q.x)
>> [1] "xts" "zoo"
>>
>> I know there are no NAs in Q.x, but na.omit should still work surely?
>>
>> cheers
>> Worik
>>
> You're not doing anything wrong, but the error tells you exactly
> what's going on.  na.omit.xts doesn't currently support character
> vectors.
>
> Best,
> --
> Joshua Ulrich  |  FOSS Trading: www.fosstrading.com
>



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