Error(s) in re-building vignettes:
--- re-building ‘lpirfs_vignette.Rmd’ using rmarkdown

Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union


Attaching package: 'gridExtra'

The following object is masked from 'package:dplyr':

    combine

Loading required package: ggplot2
Loading required package: MASS

Attaching package: 'MASS'

The following object is masked from 'package:dplyr':

    select

Loading required package: strucchange
Loading required package: zoo

Attaching package: 'zoo'

The following objects are masked from 'package:base':

    as.Date, as.Date.numeric

Loading required package: sandwich
Loading required package: urca
Loading required package: lmtest
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Loading required package: xts

Attaching package: 'xts'

The following objects are masked from 'package:dplyr':

    first, last

Loading required package: TTR
Version 0.4-0 included new data defaults. See ?getSymbols.
'getSymbols' currently uses auto.assign=TRUE by default, but will
use auto.assign=FALSE in 0.5-0. You will still be able to use
'loadSymbols' to automatically load data. getOption("getSymbols.env")
and getOption("getSymbols.auto.assign") will still be checked for
alternate defaults.

This message is shown once per session and may be disabled by setting 
options("getSymbols.warning4.0"=FALSE). See ?getSymbols for details.

Quitting from lines 510-695 (lpirfs_vignette.Rmd) 
Error: processing vignette 'lpirfs_vignette.Rmd' failed with diagnostics:
Tibble columns must have compatible sizes.
* Size 34: Existing data.
* Size 33: Column `end`.
ℹ Only values of size one are recycled.
--- failed re-building ‘lpirfs_vignette.Rmd’

SUMMARY: processing the following file failed:
  ‘lpirfs_vignette.Rmd’

Error: Vignette re-building failed.
Execution halted