clima1 = d3.csv("https://raw.githubusercontent.com/nazareno/eda-clima/master/data/clima_cg_jp-semanal.csv")
clima1[0].tmax + clima1[1].tmax
clima = d3.csv("https://raw.githubusercontent.com/nazareno/eda-clima/master/data/clima_cg_jp-semanal.csv", d3.autoType)
clima[0].tmax + clima[1].tmax
apenas_cg = clima.filter(d => d.cidade === "Campina Grande");
d3.max(apenas_cg, d => d.chuva)
d3.rollup(clima, v => d3.sum(v, d => d.chuva), d => d.cidade)
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