[R] Locating data source error in large file

[Rich Shepard]

On Fri, 20 Jul 2018, Rich Shepard wrote:

>  Thank you all. I found the typos which covered a single day toward the end
> of the dataframe.

   FWIW, all these data came from PDF reports and had to be manually
highlighted and pasted into a text file. Given 29 years of hourly (and
sometimes half-hourly) reports I'm not suprised that I made errors now and
then.

Regards,

Rich