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Editorial Team
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Asked: 2026-06-11T16:55:51+00:00

I have loaded a log onto a dataframe v . You can see the

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I have loaded a log onto a dataframe v. You can see the output of head(v):

  user_id    page_id           timestamp
1     139    1612783 2011-02-22 06:24:40
2     139    1612783 2011-02-22 06:28:40
3     139    1612783 2011-02-22 06:41:01

How can I qplot the number of page_id‘s per day?

  • On the x-axis it would be the day (e.g. 2011-02-22).
  • On the y-axis it would be the number of page_id‘s for that particular date.
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1 Answer

  1. Editorial Team

    This will work:

    v <- data.frame(
          timestamp = as.Date(c("2011-02-22", "2011-02-22", "2011-02-23")), 
          page_id = c(1,2,1))
newdata <- data.frame(time=names(new), count=new)
qplot(time, page, data = newdata)

    It is worth reading the ggplot manual, which has plenty of qplot examples, including times series.

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