[R] "Thermoisoplethendiagramm"

[David Winsemius]

On Jan 18, 2013, at 9:49 AM, Dominic Roye wrote:

> Hello,
> 
> I would like to generate isolines of temperature for the 24 hours by the 12
> month. Something like hier:
> http://www.diercke.de/bilder/omeda/800/12351E.jpg.
> 
> On the x-axis are the month and on the y-axis the 24 hours, than as contour
> lines the temperature.
> 
> My data are:
> 
> 'data.frame':   288 obs. of  3 variables:
> $ Group.1: num  0 1 2 3 4 5 6 7 8 9 ...
> $ Group.2: num  1 1 1 1 1 1 1 1 1 1 ...
> $ x      : num  6.99 6.66 6.36 6.1 5.94 ...
> 


Perhaps:

require(lattice)
levelplot(x ~ Group.2 + Group.1, data =dfrm)


> 
> Group 1: hour
> Group 2: month
> x: temperature ºC
> 
> Have anybody an idea? I have tried without success the
> command filled.contour().

I believe filled contour would have required the z argument to be a matrix, i.e. you owuld haveneeded to recast the data in wide format.

-- 

David Winsemius
Alameda, CA, USA