Session info ---------------------------------------------
 setting  value                       
 version  R version 3.3.0 (2016-05-03)
 system   x86_64, mingw32             
 ui       RStudio (0.99.902)          
 language (EN)                        
 collate  English_United States.1252  
 tz       Asia/Bangkok                
 date     2016-05-19                  

Packages -------------------------------------------------
 package       * version date       source        
 assertthat      0.1     2013-12-06 CRAN (R 3.3.0)
 base64enc       0.1-3   2015-07-28 CRAN (R 3.3.0)
 colorspace      1.2-6   2015-03-11 CRAN (R 3.3.0)
 DBI             0.4-1   2016-05-08 CRAN (R 3.3.0)
 devtools        1.11.1  2016-04-21 CRAN (R 3.3.0)
 digest          0.6.9   2016-01-08 CRAN (R 3.3.0)
 dplyr           0.4.3   2015-09-01 CRAN (R 3.3.0)
 flexdashboard   0.2.0   2016-05-18 CRAN (R 3.3.0)
 ggplot2       * 2.1.0   2016-03-01 CRAN (R 3.3.0)
 gridExtra       2.2.1   2016-02-29 CRAN (R 3.3.0)
 gtable          0.2.0   2016-02-26 CRAN (R 3.3.0)
 htmltools       0.3.5   2016-03-21 CRAN (R 3.3.0)
 htmlwidgets     0.6     2016-02-25 CRAN (R 3.3.0)
 httr            1.1.0   2016-01-28 CRAN (R 3.3.0)
 jsonlite        0.9.20  2016-05-10 CRAN (R 3.3.0)
 knitr           1.13    2016-05-09 CRAN (R 3.3.0)
 magrittr        1.5     2014-11-22 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)
 plotly        * 3.6.0   2016-05-18 CRAN (R 3.3.0)
 plyr            1.8.3   2015-06-12 CRAN (R 3.3.0)
 R6              2.1.2   2016-01-26 CRAN (R 3.3.0)
 Rcpp            0.12.5  2016-05-14 CRAN (R 3.3.0)
 rmarkdown       0.9.6   2016-05-01 CRAN (R 3.3.0)
 scales          0.4.0   2016-02-26 CRAN (R 3.3.0)
 tidyr           0.4.1   2016-02-05 CRAN (R 3.3.0)
 viridis         0.3.4   2016-03-12 CRAN (R 3.3.0)
 withr           1.0.1   2016-02-04 CRAN (R 3.3.0)
 yaml            2.1.13  2014-06-12 CRAN (R 3.3.0)