faithful
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Old Faithful Geyser DataWaiting time between eruptions and the duration of the eruption for the Old Faithful geyser in Yellowstone National Park, Wyoming, USA. Usagefaithful FormatA data frame with 272 observations on 2 variables.
DetailsA closer look at There are many versions of this dataset around: Azzalini and Bowman (1990) use a more complete version. SourceW. Härdle. ReferencesHärdle, W. (1991) Smoothing Techniques with Implementation in S. New York: Springer. Azzalini, A. and Bowman, A. W. (1990). A look at some data on the Old Faithful geyser. Applied Statistics 39, 357–365. See Also
Examplesrequire(stats); require(graphics) f.tit <- "faithful data: Eruptions of Old Faithful" ne60 <- round(e60 <- 60 * faithful$eruptions) all.equal(e60, ne60) # relative diff. ~ 1/10000 table(zapsmall(abs(e60 - ne60))) # 0, 0.02 or 0.04 faithful$better.eruptions <- ne60 / 60 te <- table(ne60) te[te >= 4] # (too) many multiples of 5 ! plot(names(te), te, type = "h", main = f.tit, xlab = "Eruption time (sec)") plot(faithful[, -3], main = f.tit, xlab = "Eruption time (min)", ylab = "Waiting time to next eruption (min)") lines(lowess(faithful$eruptions, faithful$waiting, f = 2/3, iter = 3), col = "red") |
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Attachment | Size |
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dataset-44970.csv | 2.22 KB |