Nothing
## ---- include = FALSE---------------------------------------------------------
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>"
)
## ----install, eval=FALSE------------------------------------------------------
# # stable version from CRAN
# install.packages("patentr")
#
# # development version from GitHub
# remotes::install_github("JYProjs/patentr")
## ----setup, message=FALSE-----------------------------------------------------
library(patentr)
library(tibble) # for the tibble data containers
library(magrittr) # for the pipe (%>%) operator
library(dplyr) # to work with patent data
library(lubridate) # to work with dates
## ----acquire, eval=FALSE------------------------------------------------------
# # acquire data from USPTO
# get_bulk_patent_data(
# year = rep(1976, 2), # each week must have a corresponding year
# week = 1:2, # each week corresponds element-wise to a year
# output_file = "temp_output.csv" # output file in which patent data is stored
# )
#
# # import data into R
# patent_data <- read.csv("temp_output.csv") %>%
# as_tibble() %>%
# mutate(App_Date = as_date(App_Date),
# Issue_Date=as_date(Issue_Date))
#
# # delete local file (optional - but we no longer need it for this tutorial)
# file.remove("temp_output.csv")
## ----set_data, include=FALSE--------------------------------------------------
data("y1976w1")
patent_data <- y1976w1 %>%
as_tibble %>%
mutate(App_Date = as_date(App_Date),
Issue_Date=as_date(Issue_Date))
## ----peek---------------------------------------------------------------------
tail(patent_data)
str(patent_data)
## ----example,fig.width=5------------------------------------------------------
# calculate time from application to issue (in days)
lag_time <- patent_data %>%
transmute(Lag = Issue_Date - App_Date) %>%
pull(Lag) %>%
as.numeric
# get quantitative summary
summary(lag_time)
# plot as histogram
hist(lag_time,
main = "Histogram of delay before issue",
xlab = "Time (days)", ylab = "Count")
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