鉴于此df:
//assume you have read the json string from a file and use it as following
const json_string = `{
"VARIABLE_YES":"Yes",
"VARIABLE_NO":"No"
}`;
const json_obj = JSON.parse(json_string);
builder.Prompts.choice(session, 'Make a choice', [json_obj.VARIABLE_YES, json_obj.VARIABLE_NO], {
listStyle: builder.ListStyle.button
});
定义为匹配删除的值位于向量中:
A B C
1 a 1 53
2 a 0 27
3 a 1 46
4 b 1 42
5 c 0 97
6 d 1 46
7 d 0 24
如何使用带向量的条件删除values_delete <- c("b", "c")
中的行?我试过了:
df
但它并不允许。这是错误:
df2 <- df[df$A != values_delete,]
答案 0 :(得分:1)
请参阅%in%
的{{3}}
df2 <- df[!(df$A %in% values_delete), ]