Created
April 20, 2017 10:54
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| df1 <- structure(list(numWeek = structure(c(10959, | |
| 10966, 10973, 10980, 10987, 10994, 11001, 11008, 11015, 11022, | |
| 11029, 11036), class = "Date")), .Names = "numWeek", row.names = c(NA, | |
| -12L), class = "data.frame") | |
| df2 <- structure(list(effective = c(1, 1, 1, 1, 1, 1, 4, 3, 4, 5, 8, | |
| 4), numWeek = c("2000-01-03", "2000-02-14", "2000-02-28", "2000-03-13", | |
| "2000-04-10", "2000-05-01", "2000-05-08", "2000-05-15", "2000-05-22", | |
| "2000-05-29", "2000-06-05", "2000-06-12")), .Names = c("effective", | |
| "numWeek"), row.names = c(NA, 12L), class = "data.frame") | |
| df2$numWeek <- as.Date(df2$numWeek) | |
| merge( | |
| x = df1, | |
| y = df2, | |
| by = "numWeek", | |
| all.x = TRUE | |
| ) | |
| # numWeek effective | |
| # 1 2000-01-03 1 | |
| # 2 2000-01-10 NA | |
| # 3 2000-01-17 NA | |
| # 4 2000-01-24 NA | |
| # 5 2000-01-31 NA | |
| # 6 2000-02-07 NA | |
| # 7 2000-02-14 1 | |
| # 8 2000-02-21 NA | |
| # 9 2000-02-28 1 | |
| # 10 2000-03-06 NA | |
| # 11 2000-03-13 1 | |
| # 12 2000-03-20 NA |
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