Loch_Leven: Data on longevity and father's age, from the Hyde genealogy

In rpanel: Simple Interactive Controls for R using the 'tcltk' Package

Data on longevity and father's age, from the Hyde genealogy

Description

Loch Leven is situated in lowland Scotland in the Perth and Kinross area. It is the largest shallow lake in Great Britain with an area of 13.3km$^2$, mean depth 3.9m and a maximum depth 25.5m. Regular monitoring is carried out by the *Centre for Ecology & Hydrology* in Edinburgh.

One of the features of interest is the water quality and hence the relationship between *chlorophyll$_a$* (as an indicator of water quality) and *soluble reactive phosphorus* (a nutrient) is very important. The monthly means for chlorophyll$_a$ ('lchla') and soluble reactive phosphorus ('srp') are provided from January 1988 to December 2007, along with the 'year' and 'month' of each measurement. The Loch_Leven dataframe consists of four variables:

• year: the year of the measurement;

• month: the month of the measurement, as an integer (1-12);

• chla: the measurement of chlorophyll$_a$;

• srp: the measurement of soluble reactive phosphorus.

References

Ferguson, C.A., Bowman, A.W., Scott, E.M., Carvalho, L. (2009). Multivariate varying-coefficient models for an ecological system. Environmetrics 20.4, 460-476.

Examples

## Not run: 
with(Loch_Leven, plot(year, log(chla)))

## End(Not run)

rpanel documentation built on March 12, 2026, 9:07 a.m.