24 lines
474 B
Plaintext
24 lines
474 B
Plaintext
---
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title: 数据分析
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---
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```{r}
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#| echo: false
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#| execute: false
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if (FALSE) {
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require(cctdb)
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require(tidyverse)
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conn <- cctdb::get_dbconn("nationalairquality")
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metadf <- tbl(conn, "metadf") |>
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collect()
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airqualitydf <- tbl(conn, "airqualitydf") |>
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filter(datetime > "2024-03-18") |>
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filter(datetime < "2024-03-20") |>
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collect()
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writexl::write_xlsx(list(metadf = metadf,
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airqualitydf = airqualitydf),
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"../data/airquality.xlsx")
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}
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```
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