stress_at_work_analysis/presentation/ApplicationCategories.R

52 lines
1.1 KiB
R

library(conflicted)
library(yaml)
library(RPostgreSQL)
library(tidyverse)
conflicts_prefer(
dplyr::filter,
dplyr::lag
)
library(magrittr)
# read the password from file
credentials <- yaml.load_file("../rapids/credentials.yaml")
pw <- credentials$PSQL_STRAW$password
# load the PostgreSQL driver
drv <- RPostgres::Postgres()
# creates a connection to the postgres database
# note that "con" will be used later in each connection to the database
con <- RPostgres::dbConnect(drv,
dbname = "staw",
host = "eol.ijs.si", port = 5432,
user = "staw_db", password = pw
)
rm(pw, credentials) # removes the password
# check for the bluetooth table, an example
dbExistsTable(con, "app_categories")
df_app_categories <- tbl(con, "app_categories") %>%
collect()
head(df_app_categories)
table(df_app_categories$play_store_genre)
# Correct some mistakes
df_app_categories %<>% mutate(
play_store_genre = {
function(x) {
case_when(
x == "Education,Education" ~ "Education",
x == "EducationEducation" ~ "Education",
x == "not_found" ~ "System",
.default = x
)
}
}(play_store_genre)
)
dbDisconnect(con)