R语言中的ifelse条件表达语句(Ifelse conditional expression statement in R language)

条件表达式:

1、

> a = 5
> ifelse(a %% 2 == 0, print("a is even"), print("a is odd"))   ## 满足a %% 2 ==0, 执行第一个语句,否则执行第二个语句
[1] "a is odd"
[1] "a is odd"
> a = 6
> ifelse(a %% 2 == 0, print("a is even"), print("a is odd"))   
[1] "a is even"
[1] "a is even"

2、

a = 10
ifelse(a > 0, a * 10, a * 5)         ##  满足条件,则执行第一个语句, 否则执行第二个语句

a = -10
ifelse(a > 0, a * 10, a * 5)
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Conditional expression:

1、

> a = 5
> ifelse(a %% 2 == 0, print("a is even"), print("a is odd"))   ## 满足a %% 2 ==0, 执行第一个语句,否则执行第二个语句
[1] "a is odd"
[1] "a is odd"
> a = 6
> ifelse(a %% 2 == 0, print("a is even"), print("a is odd"))   
[1] "a is even"
[1] "a is even"

2、

a = 10
ifelse(a > 0, a * 10, a * 5)         ##  满足条件,则执行第一个语句, 否则执行第二个语句

a = -10
ifelse(a > 0, a * 10, a * 5)