Hi List,

I have start and end times of events

structure(list(start = c("15:00", "15:00", "15:00", "11:00",
"14:00", "14:00", "15:00", "12:00", "12:00", "12:00", "12:00",
"12:00", "12:00", "12:00", "12:00", "12:00", "12:00", "12:00",
"12:00", "12:00"), end = c("16:00", "16:00", "16:00", "12:00",
"16:00", "15:00", "16:00", "13:00", "13:00", "13:00", "13:00",
"13:00", "13:00", "13:00", "13:00", "13:00", "13:00", "13:00",
"13:00", "13:00")), .Names = c("start", "end"), row.names = c(NA,
20L), class = "data.frame")

and I would like the data to look like this:

      t9   t10   t11   t12   t13   t14   t15   t16   t17
1  FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE
2  FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE
3  FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE
4  FALSE FALSE  TRUE FALSE FALSE FALSE FALSE FALSE FALSE
5  FALSE FALSE FALSE FALSE FALSE  TRUE  TRUE FALSE FALSE
6  FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE FALSE
7  FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE
8  FALSE FALSE FALSE  TRUE FALSE FALSE FALSE FALSE FALSE
9  FALSE FALSE FALSE  TRUE FALSE FALSE FALSE FALSE FALSE
10 FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE

Which means, that I just get a TRUE for every hour the event was taking place. A finishing time of 16:00 means that t16 is FALSE, because the event was finished until 16:00; 16:15 as end time would result in t16 being TRUE. It would be nice if the function would add the variables needed (t9 ..) as well and depending on the times put in (no t9 if there is no event starting before 10:00).

Thanks for any suggestion,
Stefan

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