![](/img/trans.png)
[英]Tidyquant tq_get and tq_transmute: Warning message "missing values removed from data"
[英]Change column name with tq_get() in Tidyquant
我在 Tidyquant 中使用tq_get()
function 從 FRED 檢索經濟數據:
library(tidyquant)
library(tidyverse)
consumer_price_index <- 'CPIAUCSL'
start_date <- as.Date('2022-01-01')
end_date <- as.Date('2022-03-31')
cpi <- tq_get(consumer_price_index,
from = start_date,
to = end_date,
get = 'economic.data')
cpi
# A tibble: 3 x 3
symbol date price
<chr> <date> <dbl>
1 CPIAUCSL 2022-01-01 282.
2 CPIAUCSL 2022-02-01 284.
3 CPIAUCSL 2022-03-01 288.
如何將price
列的名稱更改為cpi
?
所需的小標題如下所示:
# A tibble: 3 x 3
symbol date cpi
<chr> <date> <dbl>
1 CPIAUCSL 2022-01-01 282.
2 CPIAUCSL 2022-02-01 284.
3 CPIAUCSL 2022-03-01 288.
謝謝!
您可以使用來自dplyr
的rename
cpi <- tq_get(consumer_price_index,
from = start_date,
to = end_date,
get = 'economic.data') %>%
rename(cpi = price)
# A tibble: 3 × 3
symbol date cpi
<chr> <date> <dbl>
1 CPIAUCSL 2022-01-01 282.
2 CPIAUCSL 2022-02-01 284.
3 CPIAUCSL 2022-03-01 288.
或者只使用base
中的colnames
colnames(cpi)<- c("symbol", "date", "cpi")
使用列號:
names(cpi)[3] <- "cpi"
cpi
# A tibble: 3 x 3
symbol date cpi
<chr> <date> <dbl>
1 CPIAUCSL 2022-01-01 282.
2 CPIAUCSL 2022-02-01 284.
3 CPIAUCSL 2022-03-01 288.
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