R markdown file (knitr) stops working after R and Rstudio Update -


r markdown file (previously) (knitr) stops working after r (to 3.2.0) , rstudio (to 0.99.441) update (had reinstall packages)

```{r, echo=false} knitr::kable(lumvalsstd1on.data[2:12], digits = 2,              caption = "data analysis of standards lights on measurement") ```

when try convert pdf using knitr error: 

quitting lines 66-67 (rcourse15_report_expt1.rmd)  error in is.data.frame(x) : object 'lumvalsstd1on.data' not found calls: <anonymous> ... eval -> eval -> <anonymous> -> colnames -> is.data.frame execution halted

tried solution given here not seem work, still searching solution. think have required packages. how doesn't seem find data frames produced r script.


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