working with difftime objects in knitr

difftimeKnitr.md

If you want to display time elapsed nicely in an Rmd object generated by knitr, here is my suggesion:

t1 <- Sys.time()
Sys.sleep(5)
t2 <- Sys.time()
tDiff <- difftime(t2, t1, units = "hours")

This process took 0.00139 hours. Note that units above can be whatever unit you want, see ?difftime.

difftimeKnitr.Rmd

If you want to display time elapsed nicely in an Rmd object generated by knitr, here is my suggesion:

```{r diffT}
t1 <- Sys.time()
Sys.sleep(5)
t2 <- Sys.time()
tDiff <- difftime(t2, t1, units="hours")
```

This process took `r format(tDiff)`. Note that units above can be whatever unit you want, see ?difftime.