[R] introduce axis break lattice plot multipanel

[David Winsemius]

> On Dec 18, 2015, at 12:32 PM, Luigi Marongiu <marongiu.luigi at gmail.com> wrote:
> 
> Dear all,
> I am plotting some data using lattice's barchart. One of the counts I
> am plotting has a very large value with respect to the other variables
> and I would like to introduce a break in the axis to compensate for
> this 'anomaly' and give more breath to the other bars. In this example
> the high count is for the variable 'b' and I would like to introduce a
> break of 50-100 in the x axis.
> I have seen from the internet that the common approach is to stack
> together two figures but in my case I am using a multipanel plot and I
> think this way won't work for my plot.
> Is there a simple way to introduce a break in the axis of a multipanel
> lattice plot?

If there is, then it's not easy to find. I tried with `sos::findFn("axis break lattice")`.

There are base graphic broken axes offered in package:plotrix. If you are sticking with lattice, then I would suggest a logged y-axis. Or use an annotating up-arrow with a label where the ylim was restricted.

-- 
David.
> Thank you
> L
> 
> the example:
>>>> 
> A <- c('a',    'b',    'c',    'd',    'a',    'b',    'c',    'd',
> 'b',    'c',    'd',    'b',    'c',    'd')
> B <- c(1,    1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
>  1,    1,    1)
> C <- c(0,    0,    0,    0,    1,    1,    1,    1,    0,    0,    0,
>  1,    1,    1)
> D <- c(4,    120,    7,    23,    4,    24,    3,    12,    7,    1,
> 1,    5,    0,    0)
> E <- c(0,    0,    0,    0,    0,    0,    0,    0,    1,    1,    1,
>  1,    1,    1)
> DF <- data.frame(A, B, C, D, E, stringsAsFactors = FALSE)
> library(lattice)
> barchart(
>    A ~ D|E,
>    DF,
>    groups = C,
>    stack = TRUE,
>    main = "Comparison of test results",
>    xlab = "Count",
>    col = c("yellow", "orange"),
>    par.settings = list(
>        strip.background = list(col="light grey"),
>        superpose.polygon=list(col= c("yellow", "orange"))
>    ),
>    scales = list(
>        alternating = FALSE
>    ),
>    key = list(
>        space="top",
>        columns=2,
>        text=list(c("Single infections", "Multiple infections"), col="black"),
>        rectangles=list(col=c("yellow", "orange"))
>    ),
> )
> 
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David Winsemius
Alameda, CA, USA