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View usa_map_ggplot.r
states <- map_data("state")
cities <- read.csv("data/cities.csv")
trip_map <- ggplot()+
geom_map(data=states, map=states, aes(x=long, y=lat, map_id=region),
fill="#ffffff", color="grey70", size=0.4)+
geom_path(data=trip, aes(x=long, y=lat), linetype=1)+
geom_text(data=cities, aes(x=long, y=lat, group=NULL,
label = rep('x', nrow(cities))),

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epsalt / gmaps_json_to_df.r
Last active Jan 31, 2017
Load a location history JSON and convert to cleaned up data.frame
View gmaps_json_to_df.r
loc_file <- "data/loc_history.json"
## Parse JSON
loc <- RJSONIO::fromJSON(loc_file)
## Drop everything except timestamp, lat, long
dropped <- lapply(loc[[1]], function(a) a[1:3])
epsalt / loc_history.json
Created Jan 29, 2017
Sample JSON from Google Location History
View loc_history.json
"locations": [{
"timestampMs": "1472048632150",
"latitudeE7": 510354955,
"longitudeE7": -1140796058,
"accuracy": 22,
"activitys": [{
"timestampMs": "1472048632075",
"activities": [{
"type": "still",
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