dbplot (version 0.3.0)

dbplot_bar: Bar plot

Description

Uses very generic dplyr code to aggregate data and then `ggplot2` to create the plot. Because of this approach, the calculations automatically run inside the database if `data` has a database or sparklyr connection. The `class()` of such tables in R are: tbl_sql, tbl_dbi, tbl_spark

Usage

dbplot_bar(data, x, ..., y = n())

Arguments

data

A table (tbl)

x

A discrete variable

...

A set of named or unamed aggregations

y

The aggregation formula. Defaults to count (n)

See Also

dbplot_line , dbplot_histogram, dbplot_raster ,

Examples

# NOT RUN {
library(ggplot2)
library(dplyr)

# Returns a plot of the row count per am
mtcars %>%
  dbplot_bar(am)

# Returns a plot of the average mpg per am
mtcars %>%
  dbplot_bar(am, mean(mpg))

# Returns the average and sum of mpg per am
mtcars %>%
  dbplot_bar(am, avg_mpg = mean(mpg), sum_mpg = sum(mpg))

# }