For the sake of reproducibility, here’s a list of packages and their versions that were used to create this R markdown document.

devtools::session_info()
 setting  value                       
 version  R version 3.3.0 (2016-05-03)
 system   x86_64, darwin13.4.0        
 ui       RStudio (1.0.136)           
 language (EN)                        
 collate  en_CA.UTF-8                 
 tz       America/Vancouver           
 date     2017-02-23                  

 package              * version  date       source        
 acepack                1.4.1    2016-10-29 CRAN (R 3.3.0)
 annotate               1.50.1   2016-10-09 Bioconductor  
 AnnotationDbi          1.34.4   2016-07-08 Bioconductor  
 assertthat             0.1      2013-12-06 CRAN (R 3.3.0)
 backports              1.0.5    2017-01-18 CRAN (R 3.3.2)
 base64enc              0.1-3    2015-07-28 CRAN (R 3.3.0)
 Biobase                2.32.0   2016-05-04 Bioconductor  
 BiocGenerics           0.18.0   2016-05-04 Bioconductor  
 BiocParallel           1.6.6    2016-08-15 Bioconductor  
 bitops                 1.0-6    2013-08-17 CRAN (R 3.3.0)
 checkmate              1.8.2    2016-11-02 CRAN (R 3.3.0)
 cluster                2.0.5    2016-10-08 CRAN (R 3.3.0)
 codetools              0.2-15   2016-10-05 CRAN (R 3.3.0)
 colorspace             1.3-2    2016-12-14 CRAN (R 3.3.2)
 cowplot                0.7.0    2016-10-28 CRAN (R 3.3.0)
 crayon                 1.3.2    2016-06-28 CRAN (R 3.3.0)
 data.table             1.10.4   2017-02-01 CRAN (R 3.3.0)
 DBI                    0.5-1    2016-09-10 CRAN (R 3.3.0)
 DESeq2                 1.12.4   2016-08-08 Bioconductor  
 devtools               1.12.0   2016-06-24 CRAN (R 3.3.0)
 digest                 0.6.12   2017-01-27 CRAN (R 3.3.2)
 doMC                   1.3.4    2015-10-13 CRAN (R 3.3.0)
 dplyr                  0.5.0    2016-06-24 CRAN (R 3.3.0)
 evaluate               0.10     2016-10-11 CRAN (R 3.3.0)
 forcats                0.2.0    2017-01-23 CRAN (R 3.3.2)
 foreach                1.4.3    2015-10-13 CRAN (R 3.3.0)
 foreign                0.8-67   2016-09-13 CRAN (R 3.3.0)
 Formula                1.2-1    2015-04-07 CRAN (R 3.3.0)
 genefilter             1.54.2   2016-05-16 Bioconductor  
 geneplotter            1.50.0   2016-05-04 Bioconductor  
 GenomeInfoDb           1.8.7    2016-09-02 Bioconductor  
 GenomicRanges          1.24.3   2016-09-11 Bioconductor  
 ggplot2              * 2.2.1    2016-12-30 CRAN (R 3.3.2)
 gridExtra              2.2.1    2016-02-29 CRAN (R 3.3.0)
 gtable                 0.2.0    2016-02-26 CRAN (R 3.3.0)
 Hmisc                  4.0-2    2016-12-31 CRAN (R 3.3.2)
 htmlTable              1.9      2017-01-26 CRAN (R 3.3.2)
 htmltools              0.3.5    2016-03-21 CRAN (R 3.3.0)
 htmlwidgets            0.8      2016-11-09 CRAN (R 3.3.2)
 IRanges                2.6.1    2016-06-19 Bioconductor  
 iterators              1.0.8    2015-10-13 CRAN (R 3.3.0)
 knitr                  1.15.1   2016-11-22 CRAN (R 3.3.2)
 labeling               0.3      2014-08-23 CRAN (R 3.3.0)
 lattice                0.20-34  2016-09-06 CRAN (R 3.3.0)
 latticeExtra           0.6-28   2016-02-09 CRAN (R 3.3.0)
 lazyeval               0.2.0    2016-06-12 CRAN (R 3.3.0)
 locfit                 1.5-9.1  2013-04-20 CRAN (R 3.3.0)
 magrittr             * 1.5      2014-11-22 CRAN (R 3.3.0)
 Matrix                 1.2-8    2017-01-20 CRAN (R 3.3.2)
 matrixStats            0.51.0   2016-10-09 CRAN (R 3.3.0)
 memoise                1.0.0    2016-01-29 CRAN (R 3.3.0)
 munsell                0.4.3    2016-02-13 CRAN (R 3.3.0)
 nnet                   7.3-12   2016-02-02 CRAN (R 3.3.0)
 pheatmap               1.0.8    2015-12-11 CRAN (R 3.3.0)
 plyr                   1.8.4    2016-06-08 CRAN (R 3.3.0)
 purrr                  0.2.2    2016-06-18 CRAN (R 3.3.0)
 R6                     2.2.0    2016-10-05 CRAN (R 3.3.0)
 RColorBrewer           1.1-2    2014-12-07 CRAN (R 3.3.0)
 Rcpp                   0.12.9   2017-01-14 CRAN (R 3.3.2)
 RCurl                  1.95-4.8 2016-03-01 CRAN (R 3.3.0)
 readr                  1.0.0    2016-08-03 CRAN (R 3.3.0)
 rmarkdown              1.3      2016-12-21 CRAN (R 3.3.2)
 rpart                  4.1-10   2015-06-29 CRAN (R 3.3.0)
 rprojroot              1.2      2017-01-16 CRAN (R 3.3.2)
 RSQLite                1.1-2    2017-01-08 CRAN (R 3.3.2)
 S4Vectors              0.10.3   2016-08-16 Bioconductor  
 scales                 0.4.1    2016-11-09 CRAN (R 3.3.2)
 stringi                1.1.2    2016-10-01 CRAN (R 3.3.0)
 stringr                1.2.0    2017-02-18 CRAN (R 3.3.2)
 SummarizedExperiment   1.2.3    2016-06-10 Bioconductor  
 survival               2.40-1   2016-10-30 CRAN (R 3.3.0)
 testthat               1.0.2    2016-04-23 CRAN (R 3.3.0)
 tibble                 1.2      2016-08-26 CRAN (R 3.3.0)
 tidyr                  0.6.1    2017-01-10 CRAN (R 3.3.2)
 tximport               1.0.3    2016-06-19 Bioconductor  
 withr                  1.0.2    2016-06-20 CRAN (R 3.3.0)
 XML                    3.98-1.5 2016-11-10 CRAN (R 3.3.2)
 xtable                 1.8-2    2016-02-05 CRAN (R 3.3.0)
 XVector                0.12.1   2016-07-22 Bioconductor  
 yaml                   2.1.14   2016-11-12 CRAN (R 3.3.2)
 zlibbioc               1.18.0   2016-05-04 Bioconductor