Fair enough, thank you.
On Thu, Feb 28, 2019 at 4:56 PM Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote:
>
> You are missing the point... lattice assembles the entire data set at once so
> it can adjust and synchronize all of the scales and then it generates an
> object that can be printed to a device. This approach is entirely
> incompatible with the base graphics approach of keeping global variables
> around that help successive functions cooperate to cumulatively build up an
> image.
>
> You need to get all your points into the lattice call initially. which may
> involve changing how you structure the data before you create the plot. Read
> the vignette and some tutorials.
>
> On February 28, 2019 7:38:52 AM PST, Luigi Marongiu
> <marongiu.lu...@gmail.com> wrote:
> >I see. I have been thinking of superimposing two plots with
> >par(new=TRUE), but how could I remove all the graphic parameters
> >(axes, background etc) keeping only the actual points in lattice? (if
> >possible).
> >Tx
> >
> >On Thu, Feb 28, 2019 at 3:53 PM Duncan Murdoch
> ><murdoch.dun...@gmail.com> wrote:
> >>
> >> On 28/02/2019 5:39 a.m., Luigi Marongiu wrote:
> >> > Dear all,
> >> > is it possible to add points to a lattice cloud plot (3D scatter)?
> >I
> >> > can plot the main data, but what if I wanted to add another point.
> >In
> >> > R there is the high level plotting function plot(), then the low
> >level
> >> > points() or lines() etc. What is the equivalent for lattice?
> >>
> >> I don't know for sure, but I don't think you can do that in lattice.
> >> The scatterplot3d::scatterplot3d function returns enough information
> >to
> >> do this, but I don't think lattice::cloud does. But even
> >> scatterplot3d::scatterplot3d won't necessarily get it right if points
> >> hide others that are behind them. It uses the "painter's algorithm",
> >> and that needs everything to be drawn in just the right order, which
> >you
> >> probably won't get if you draw things in several calls.
> >>
> >> You can draw things in arbitrary order using rgl::plot3d or related
> >> functions, but you'll need to do more work yourself to get an array
> >of
> >> plots like lattice gives.
> >>
> >> Duncan Murdoch
> >>
> >>
> >> >
> >> > Thank you
> >> >
> >> >
> >> >>>>
> >> >
> >> > df = data.frame(Name = c("A", "B", "C", "D", "E"),
> >> > x_axis = c(-0.591, 0.384, -0.384, -0.032, 0.754),
> >> > y_axis = c(-1.302, 1.652, -1.652, 0.326, 0.652),
> >> > z_axis = c(1.33, 1.33, 2.213, 0.032, -0.754),
> >> > stringsAsFactors = FALSE)
> >> >
> >> > cloud(z_axis ~ x_axis * y_axis, data = df,
> >> > xlab = "X", ylab = "Y", zlab = "Z",
> >> > pch = 16, col = "red", type = "b", cex = 1.5,
> >> > ltext(x=df$x_axis, y=df$y_axis, z=df$z_axis,
> >> > labels=df$Names, pos=1, offset=1, cex=0.8)
> >> > )
> >> >
> >> > df2 = data.frame(Name = "F",
> >> > x_axis = 0.891,
> >> > y_axis = 2.302
> >> > z_axis = -1.83,
> >> > stringsAsFactors = FALSE)
> >> >
> >>
>
> --
> Sent from my phone. Please excuse my brevity.
--
Best regards,
Luigi
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