I am not able to force spplot to do class interval at specified points. I
set them very similar to what gives the spplot command automatically for not
to have some mistake in values.

I used following command (I simplified it because of this question):

spplot(hron_prec, c("AVETREN", "AVETEST"),  at = c(1.9, 2.35, 2.8, 3.3, 3.7,
4.2))

 

hron_prec is point shapefile and AVETREN and AVETEST are two real valued
attributes of it with values from 1.9 to 4.2

 

it gives me breaks in 1.9, 2.36, 2.82, 3.28, 3.74, 4.2 and warning message
was displayed:

In spmap.to.lev(sdf, zcol = zcol, names.attr = names.attr) :

  spmap.to.lev ignores spatial dimensions beyond the first 2

 

I want to have class intervals "more rounded" and I would like to set them
where I want - please what could be wrong?

Milan

 

Milan Cisty, PhD.
Associate Professor in Water Resources Management
Department of Land and Water Resources Management
Faculty of Civil Engineering
Slovak University of Technology  Bratislava
Radlinskeho 11, 813 68 Bratislava, Slovak Republic
e-mail:  <mailto:milan.cisty@stuba.sk> milan.cisty@stuba.sk
tel:  00421 2 59274628

 


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