I previously blogged about building a dashboard using R and as with learning any new programming language there are a set of essential tasks to figure out before you can be very productive so I thought I’d post the set of bookmarks I’ve cycled through as I learn R.
Using R — Basic error Handing with tryCatch()
Dynamically Installing and Loading Packages:
if(!require(jsonlite)) install.packages("jsonlite") library(jsonlite)
Filtering a dataframe row that contains a string
Extracting specific columns from a dataframe
4 data wrangling tasks in R for advanced beginners
Convert data.frame columns from factors to characters
How to sum all values of a column of in a data.frame?
How do I get the number of rows of a data.frame in R?
Add new row to dataframe
How to extract unique elements from a data.frame in R?
How to Convert Numeric Data into Currency in R?
Gantt charts with R
Connecting to SQL Server from R using RJDBC
Grouping, Pivoting, Filtering & more in R
How to delete the first row of a dataframe in R?
(R) How to tell what is in one vector and not another?
Extracting specific columns from a data frame
Converting a data.frame to a numerical matrix in R, not so easy!
Building a Dashboard in R with Shiny & ShinyDashboards
https://almsaeedstudio.com/preview (underlying template framework)
How to Make a PivotTable in R
REGEXEXTRACT for R
Lastly, here’s my sessionInfo:
> sessionInfo() R version 3.2.4 (2016-03-10) Platform: x86_64-apple-darwin13.4.0 (64-bit) Running under: OS X 10.11.4 (El Capitan) locale:  en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 attached base packages:  stats graphics grDevices utils datasets methods base other attached packages:  RColorBrewer_1.1-2 RGoogleAnalytics_0.1.1 lubridate_1.5.6 stringr_1.0.0 googleVis_0.5.10  scales_0.4.0 DT_0.1 plotly_3.4.13 ggplot2_2.1.0 shinydashboard_0.5.1  jsonlite_0.9.19 httr_1.1.0 reshape2_1.4.1 dplyr_0.4.3 shiny_0.13.2  RPostgreSQL_0.4 RJDBC_0.2-5 rJava_0.9-8 DBI_0.3.1 loaded via a namespace (and not attached):  Rcpp_0.12.4 plyr_1.8.3 base64enc_0.1-3 viridis_0.3.4 tools_3.2.4 digest_0.6.9 gtable_0.2.0  curl_0.9.7 yaml_2.1.13 parallel_3.2.4 gridExtra_2.2.1 htmlwidgets_0.6 grid_3.2.4 R6_2.1.2  RJSONIO_1.3-0 tidyr_0.4.1 magrittr_1.5 htmltools_0.3.5 rsconnect_0.4.2.1 assertthat_0.1 mime_0.4  xtable_1.8-2 colorspace_1.2-6 httpuv_1.3.3 labeling_0.3 stringi_1.0-1 openssl_0.9.2 lazyeval_0.1.10  munsell_0.4.3