Specify that your input is of class yearmon (as opposed to Date class) and
also correct the format specification as per the percent codes in ?strptime

library(zoo)
z <- read.zoo("clipboard", FUN = as.yearmon, format = "%b-%y")



On Tue, Dec 1, 2009 at 12:55 PM, Megh <megh700004@yahoo.com> wrote:

>
> In my Excel file, I have data in following format :
>
> Feb-07  38.49
> Mar-07  39.95
> Apr-07  37.47
> May-07  35.77
> Jun-07  32.96
> Jul-07  33.27
>
> I tried to copy this data as a time series using following code :
>
> library(zoo)
> dat <- read.zoo(file="clipboard", format="%m-%y")
>
> However getting following error :
>
> Error in read.zoo(file = "clipboard", format = "%m-%y") :
>  index has bad entries at data rows: 1 2 3 4 5 6
>
> Can anyone please guide me what is the right way to do that?
>
> Thanks,
>
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