我想创建我的owm函数来读取var fixtures = {
"_links": {
"self": {
"href": "http://api.football-data.org/v1/fixtures/150840"
},
"soccerseason": {
"href": "http://api.football-data.org/v1/soccerseasons/426"
},
"homeTeam": {
"href": "http://api.football-data.org/v1/teams/62"
},
"awayTeam": {
"href": "http://api.football-data.org/v1/teams/73"
}
},
"date": "2016-08-13T14:00:00Z",
"status": "FINISHED",
"matchday": 1,
"homeTeamName": "Everton FC",
"awayTeamName": "Tottenham Hotspur FC",
"result": {
"goalsHomeTeam": 1,
"goalsAwayTeam": 1
}
};
var res = Object.keys(fixtures.result).map(item => { return fixtures.result[item] });
console.log(res);数据。代码是：
.csv然而，当我阅读我的数据时，我得到了这个my_read_data <- function(x){
data <- data.table::fread(x, header = T, strip.white = T)
data <- data[data[5] != 0,]
data <- as.Date(data[9])
data <- as.Date(data[16])
}
：
Error我想要的是如果Data <- my_read_data("mydata.csv")
Error in `[.data.table`(data, data[5] != 0, ) :
i is invalid type (matrix). Perhaps in future a 2 column matrix could return a list of elements of DT (in the spirit of A[B] in FAQ 2.14). Please let datatable-help know if you'd like this, or add your comments to FR #657.
出现column 5，请删除该行。设置0格式
有什么建议吗？
更新
感谢@ thelatemail的评论。现在，我在下面编辑我的代码：
Column 9 & 10但是，my_read_data <- function(x){
data <- data.table::fread(x, header = T, strip.white = T)
data <- data[data[[5]] != 0,]
data <- as.Date(data[9])
data <- as.Date(data[16])
}
不起作用。运行我的功能后，它不会创建数据。
答案 0 :(得分：0)
as.date()的工作方式如下，您可以将格式更改为所需的格式
x<- as.Date(dates,format = "%m/%d/%y")