setting up tag specific boundaries

One of the questions that is not explained much is how should one select the boundaries for the light level and the irradiance. There is no straightforward way to do it so I recommend following values for the tags I've tried:

tag type	minimum value	maximum value	log light borders	log.irrad.borders	sun elevation boundaries
BAS tag	0	64	log(c(2,63))	c(-5.5, 1.5)	-5.85 to 6.3
Intigeo tag			c(1.5, 9)	c(-3, 3)	-4.1 to 32

Note: sun elevation boundaries are not used in the package directly - they are set by log.irrad.borders..