poblenou

poblenou data

NOx levels measured every hour by a control station in Poblenou in Barcelona (Spain).

Keywords
datasets
Details

The dataset starts on 23 February and ends on 26 June, in 2005. We split the whole sample of hourly measures in a dataset of functional trajectories of 24 h observations (each curve represents the evolution of the levels in 1 day). Twelve curves that contained missing data were eliminated.

Format

The format is: ..$nox: fdata class object with: i.- "data": Matrix with 115 curves (rows) discretized in 24 points or argvals (columns). ii.- "argvals": 0:23 iii.- "rangeval"=(0,23): range("argvals"), iv.- "names" list with: main an overall title "NOx data set", xlab title for x axis "Hours" and ylab title for y axis "NOx (mglm^3)". ..$df: Data Frame with (115x3) dimension. "date" in the first column. Second column ("day.week"). Factor levels: "Monday" 1, "Tuesday" 2, "Wednesday" 3, "Thursday" 4, "Friday" 5, "Saturday" 6 and "Sunday" 7. Third column "day.festive". Factor levels: "non festive day" 0 and "festive day" 1.

References

Febrero-Bande, M., Galeano, P., and Gonzalez-Manteiga, W. (2008). Outlier detection in functional data by depth measures with application to identify abnormal NOx levels. Environmetrics 19, 4, 331-345.

Aliases
  • poblenou
Examples
# NOT RUN {
data(poblenou)
names(poblenou)
names(poblenou$nox) 
nox<-poblenou$nox
class(nox)
ind.weekend<-as.integer(poblenou$df[,"day.week"])>5
plot(nox,col=ind.weekend+1)

# }
Documentation reproduced from package fda.usc, version 2.0.1, License: GPL-2

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