Question

短版本：执行以下命令时qtm(countries, "freq")我收到以下错误消息：

$<-.data.frame中的错误（*tmp*，＆＃34; SHAPE_AREAS＆＃34;，value = c（652270.070308042，：替换有177行，数据有210

免责声明：我已经检查了其他答案，例如this one或this one以及this explanation，其中指出通常此错误来自拼写错误的对象，但找不到我的问题的答案。

可重现的代码：

library(rgdal)
library(dplyr)
library(tmap)

# Load JSON file with countries.
countries = readOGR(dsn = "https://gist.githubusercontent.com/ccamara/fc26d8bb7e777488b446fbaad1e6ea63/raw/a6f69b6c3b4a75b02858e966b9d36c85982cbd32/countries.geojson")

# Load dataframe.
df = read.csv("https://gist.githubusercontent.com/ccamara/fc26d8bb7e777488b446fbaad1e6ea63/raw/754ea37e4aba1b7ed88eaebd2c75fd4afcc54c51/sample-dataframe.csv")


countries@data = left_join(countries@data, df, by = c("iso_a2" = "country_code"))

qtm(countries, "freq")

Answer 1

您的错误在数据中 - 代码正常运行。

你现在正在做的是：

1）尝试1：1比赛

2）意识到你的.csv数据包含几个要匹配的ID

3）左连接然后将左侧与右侧的所有匹配相乘

要避免此问题，您必须再次汇总数据，如：

library(dplyr)

df_unique = df %>%
    group_by(country_code, country_name) %>%
    summarize(total = sum(total), freq = sum(freq))


#after that you should be fine - as long as just adding up the data is okay.
countries@data = left_join(countries@data, df, by = c("iso_a2" = 
"country_code"))

qtm(countries, "freq")

Tmap错误 - 替换有[x]行，数据有[y]

1 个答案: