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Data Science at the Command Line Strata Tutorial
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| # make sure that you have the R package `ggmap` installed | |
| curl -s http://api.citybik.es/citi-bike-nyc.json > citibikes.json | |
| < citibikes.json jq -r '.[] | [.lat/1000000,.lng/1000000,.bikes] | @csv' | header -a lat,lng,bikes > citibikes.csv | |
| < citibikes.csv Rio -vge 'require(ggmap); qmap("NYC", zoom=14) + geom_point(data=df, aes(x=lng, y=lat, size=bikes))' > citibikes.png |
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| $ curl -sL 'http://en.wikipedia.org/wiki/List_of_countries_and_territories_by_border/area_ratio' | scrape -be 'table.wikitable > tr:not(:first-child)' | xml2json | jq -c '.html.body.tr[] | {country: .td[1][], border: .td[2][], surface: .td[3][], ratio: .td[4][]}' | json2csv -p -k=border,surface | head -n 11 | csvlook |
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I think you misspelled
datain the Rio expression. Please see the updated commands incase-citibikes.shand let me know if that works. (If you get an error in Rio, you can also specify the-voption to see the error.)