Gantt chart using Gvis Jul 27, 2017 Gantt chart can be very useful to visualize the occurance of certain events on a timeline. If you need create one programmetically, you can use gvis package which utilizes plotting library from Google. # get the data df <- data_get() # make sure you get the data here # convert time to decimal hours, remove if not required df$start.ct <- as.POSIXct(paste(df$`Date Time`, df$start, sep = " ")) df$end.ct <- as. ...