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我正在使用允许通过其 API 导入世界银行数据的R包。WDI问题是我想查看一个地区的所有国家，例如撒哈拉以南非洲。但是为此我需要指定这么多国家（SSH 现在是 49）。

首先这样做效率很低，尤其是考虑到 data.worldbank.org 上的数据浏览器确实允许您选择一个地区。

然而，真正的问题是国家的数量变得难以处理（我猜）世界银行 API，因为过多的国家会产生 HTTP 错误。导致我不得不将请求分成两部分。

但是，当使用更有效的ALL值时，即使观察次数要高得多，也不会出现错误。

现在我的代码如下所示：

library(WDI)

COUNTRIES1 <- c( "AGO","BEN","BWA","BFA","BDI","CMR","CPV","CAF","TCD","COM","ZAR","COG","CIV","GNQ","ERI","ETH","GAB","GMB","GHA","GNB","GIN","KEN","LSO","LBR","MDG" )
COUNTRIES2 <- c( "MWI","MLI","MRT","MUS","MYT","MOZ","NAM","NER","NGA","RWA","STP","SEN","SYC","SLE","SOM","ZAF","SSD","SDN","SWZ","TZA","TGO","UGA","ZMB","ZWE" )
INDICATORS <- c("NY.GDP.PCAP.KN", "SP.DYN.TFRT.IN", "SP.POP.TOTL")

LONG1 <- WDI( country=COUNTRIES1, indicator=INDICATORS, start=1960, end=2009, extra=FALSE)
LONG2 <- WDI( country=COUNTRIES2, indicator=INDICATORS, start=1960, end=2009, extra=FALSE)

LONG <- merge( LONG1, LONG2, by=intersect( names(LONG1),names(LONG2) ), all=TRUE )

我曾尝试将SSH其用作国家/地区代码，但这给出了所有 SSH 国家/地区的汇总，而不是所有观察结果。

有任何想法吗？

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1 回答 1

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您可以下载所有国家/地区的数据并使用Region过滤结果。

library(WDI)
indicators <- c("NY.GDP.PCAP.KN", "SP.DYN.TFRT.IN", "SP.POP.TOTL")
d <- WDI("all", indicators, extra=TRUE, start=1960, end=2009)
# Discard unwanted rows
d <- d[ which(d$Region == "Sub-Saharan Africa"), ]
# Discard unwanted columns
d <- d[,1:6]
head(d)
于 2012-04-17T12:43:03.920 回答