R里判断某个日期是星期几的涵数? [推广有奖]

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xubo_xu2008 发表于 2010-2-8 14:35:04 |AI写论文

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哪位大哥知道, R里判断某个日期是星期几的涵数?谢谢先!

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epoh 发表于2楼查看完整内容

#day.of.week() returns a number between 0 and 6 to #specify day of the week–0 refers to Sunday. library(chron) print(day.of.week(2,8,2010)) #1 print(day.of.week(2,9,2010)) #2 print(day.of.week(2,10,2010)) #3 print(day.of.week(2,11,2010)) #4 print(day.of.week(2,12,2010)) #5 print(day.of.week(2,13,2010)) #6 print(day.of.week(2,14,2010)) #0 print(day.of.week(2,15,2010)) #1

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· R语言精彩问答|主题: 828, 订阅: 16

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epoh 发表于 2010-2-8 16:27:19

#day.of.week() returns a number between 0 and 6 to
#specify day of the week–0 refers to Sunday.

library(chron)
print(day.of.week(2,8,2010)) #1
print(day.of.week(2,9,2010)) #2
print(day.of.week(2,10,2010))  #3
print(day.of.week(2,11,2010))  #4
print(day.of.week(2,12,2010))  #5
print(day.of.week(2,13,2010))  #6
print(day.of.week(2,14,2010))  #0
print(day.of.week(2,15,2010))  #1