Error(s) in re-building vignettes:
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--- re-building ‘intro.Rmd’ using rmarkdown
Loading required package: rolypoly
Welcome to rolypoly! Say hi @diegoisworking.
Loading required package: dplyr

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

Loading required package: ggplot2
adding gwas
filtering out SNPs with MAF < 1%
adding block annotations
beginning processs of linking gwas and block annotations
##------ Fri Mar 29 21:36:42 2019 ------## - starting blocks on chrom: 1
merging functional information about blocks
starting inference procedure
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Quitting from lines 97-98 (intro.Rmd) 
Error: processing vignette 'intro.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘intro.Rmd’

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

Error: Vignette re-building failed.
Execution halted