[R] grid.table + splom: how to nicely align panel entries
Marius Hofert
m_hofert at web.de
Thu Apr 21 10:57:56 CEST 2011
Here is the final solution with my minimal example :-)
library(lattice)
library(grid)
library(gridExtra)
## function for correct alignment according to the decimal point
align.digits <- function(l){
sp <- strsplit(as.character(l), "\\.")
chars <- sapply(sp, function(x) nchar(x)[1])
n <- max(chars)-chars
l0 <- sapply(n, function(x) paste(rep("0", x), collapse=""))
labels <- sapply(seq_along(sp), function(i){
point <- if(is.na(sp[[i]][2])) NULL else quote(.)
as.expression(bquote(phantom(.(l0[i])) * .(sp[[i]][1]) * .(point) * .(sp[[i]][2]) ))})
}
## splom with customized lower.panel
## x: data
## arr: array of containing expressions which are plotted in a grid table in the
## lower panel (i,j)
## nr: number of rows in each lower.panel
splom2 <- function(x, arr, nr){
## function for creating table
table.fun <- function(vec){ # vector containing lines for table for *one* panel
grid.table(matrix(vec, nrow=nr, byrow=TRUE),
parse=TRUE, # parse labels as expressions
theme=theme.list(
gpar.coretext=gpar(cex=0.8), # text size
gpar.corefill=gpar(fill=NA, col=NA), # make bg transparent
core.just="left", padding.h=unit(0,"mm")) # justification of labels
)
}
## splom
splom(x, varname.cex=1.2,
superpanel=function(z, ...){
panel.pairs(z, upper.panel=panel.splom, lower.panel=function(i,j){
table.fun(arr[i,j,])
}, ...)
})
}
## create data and array of expressions
d <- 4
x <- matrix(runif(d*1000), ncol=d) # data to be plotted with splom
nr <- 3 # number of rows for the panel entries
nc <- 3 # number of cols for the panel entries
arr <- array(list(rep(NA,nr*nc)), dim=c(d,d,nr*nc), dimnames=c("i","j","val")) # array containing the table entries per panel
f <- function(i,j) (i+j)*10 # dummy function
eq <- "phantom()==phantom()"
for(i in 1:d){
for(j in 1:d){
numbers <- align.digits(c(round(pi,4), round(pi, 6), f(i,j)))
arr[i,j,] <- c("alpha", eq, numbers[1],
"italic(bbb)", eq, numbers[2],
"gamma", eq, numbers[3])
}
}
## plot
splom2(x, arr, nr=3)
On 2011-04-21, at 02:19 , Marius Hofert wrote:
> Dear Baptiste,
>
> *fantastic*, thank you very much, *precisely* what I was looking for!
>
> Cheers,
>
> Marius
>
> On 2011-04-21, at 01:31 , baptiste auguie wrote:
>
>> On 21 April 2011 09:54, Marius Hofert <m_hofert at web.de> wrote:
>>> Dear Baptiste,
>>>
>>> great, many thanks!
>>> One last thing: Do you know why the gpar(cex=0.1) argument is ignored?
>>>
>>
>> Yes – the theme overrides it, you need to include it in the theme.list().
>>
>> baptiste
>>
>>
>>> Cheers,
>>>
>>> Marius
>>>
>>> library(lattice)
>>> library(grid)
>>> library(gridExtra)
>>>
>>> ## function for correct digit alignment
>>> align.digits <- function(l){
>>> sp <- strsplit(as.character(l), "\\.")
>>> chars <- sapply(sp, function(x) nchar(x)[1])
>>> n <- max(chars)-chars
>>> l0 <- sapply(n, function(x) paste(rep("0", x), collapse=""))
>>> labels <- sapply(seq_along(sp), function(i){
>>> point <- if(is.na(sp[[i]][2])) NULL else quote(.)
>>> as.expression(bquote(phantom(.(l0[i])) * .(sp[[i]][1]) * .(point) * .(sp[[i]][2]) ))})
>>> }
>>>
>>> ## splom with customized lower.panel
>>> ## x: data
>>> ## arr: array of containing expressions which are plotted in a grid table in the
>>> ## lower panel (i,j)]
>>> splom2 <- function(x, arr, nr){
>>> ## function for creating table
>>> table.fun <- function(vec){ # vector containing lines for table for *one* panel
>>> grid.table(matrix(vec, nrow=nr, byrow=TRUE),
>>> parse=TRUE, # parse labels as expressions
>>> gpar.coretext=gpar(cex=0.1), # text size
>>> theme=theme.list(
>>> gpar.corefill=gpar(fill=NA, col=NA), # make bg transparent
>>> core.just="left", padding.h=unit(0,"mm")) # justification of labels
>>> )
>>> }
>>> ## splom
>>> splom(x, varname.cex=1.2,
>>> superpanel=function(z, ...){
>>> panel.pairs(z, upper.panel=panel.splom, lower.panel=function(i,j){
>>> table.fun(arr[i,j,])
>>> }, ...)
>>> })
>>> }
>>>
>>> ## create data and array of expressions
>>> d <- 4
>>> x <- matrix(runif(d*1000), ncol=d) # data to be plotted with splom
>>> nr <- 3 # number of rows for the panel entries
>>> nc <- 3 # number of cols for the panel entries
>>> arr <- array(list(rep(NA,nr*nc)), dim=c(d,d,nr*nc), dimnames=c("i","j","val")) # array containing the table entries per panel
>>> f <- function(i,j) (i+j)*10 # dummy function
>>> eq <- "phantom()==phantom()"
>>> for(i in 1:d){
>>> for(j in 1:d){
>>> numbers <- align.digits(c(round(pi,4), round(pi, 6), f(i,j)))
>>> arr[i,j,] <- c("alpha", eq, numbers[1],
>>> "italic(bbb)", eq, numbers[2],
>>> "gamma", eq, numbers[3])
>>> }
>>> }
>>>
>>> ## plot
>>> splom2(x, arr, nr=3)
>>>
>>>
>>> On 2011-04-20, at 22:38 , baptiste auguie wrote:
>>>
>>>> Try this,
>>>>
>>>> align.digits = function(l)
>>>> {
>>>>
>>>> sp <- strsplit(as.character(l), "\\.")
>>>> chars <- sapply(sp, function(x) nchar(x)[1])
>>>> n = max(chars) - chars
>>>> l0 = sapply(n, function(x) paste(rep("0", x), collapse=""))
>>>> labels = sapply(seq_along(sp), function(i) {
>>>> point <- if(is.na(sp[[i]][2])) NULL else quote(.)
>>>> as.expression(bquote(phantom(.(l0[i])) * .(sp[[i]][1])*
>>>> .(point)*.(sp[[i]][2]) ))})
>>>>
>>>> return(labels)
>>>> }
>>>>
>>>>
>>>> library(gridExtra)
>>>>
>>>> d <- align.digits(l = c(125.3, 1.23444444, 12))
>>>> grid.newpage()
>>>> grid.table(d, parse=T, core.just="left", gpar.coretext=gpar(cex=0.5))
>>>>
>>>> HTH,
>>>>
>>>> baptiste
>>>>
>>>> On 21 April 2011 03:07, Marius Hofert <m_hofert at web.de> wrote:
>>>>> Dear Baptiste,
>>>>>
>>>>> very nice, indeed!
>>>>>
>>>>> Two minor issues that remain, are:
>>>>> (1) I tried to omit the decimal dot for those numbers that do not have digits
>>>>> after the decimal dot. But somehow it does not work...
>>>>> (2) Do you know how one can decrease the text size for the text appearing in the
>>>>> lower panel? I tried to work with "cex=0.5"... but it was ignored all the time.
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Marius
>>>>>
>>>>>
>>>>> library(lattice)
>>>>> library(grid)
>>>>> library(gridExtra)
>>>>>
>>>>> ## function for correct digit alignment
>>>>> align.digits <- function(l){
>>>>> sp <- strsplit(as.character(l), "\\.")
>>>>> chars <- sapply(sp, function(x) nchar(x)[1])
>>>>> n <- max(chars)-chars
>>>>> l0 <- sapply(n, function(x) paste(rep("0", x), collapse=""))
>>>>> sapply(seq_along(sp), function(i){
>>>>> if(length(sp[[1]])==1){
>>>>> as.expression(bquote(phantom(.(l0[i])) * .(sp[[i]][1])))
>>>>> }else{
>>>>> as.expression(bquote(phantom(.(l0[i])) * .(sp[[i]][1])*.*.(sp[[i]][2])))
>>>>> }
>>>>> })
>>>>> }
>>>>>
>>>>> ## splom with customized lower.panel
>>>>> ## x: data
>>>>> ## arr: array of containing expressions which are plotted in a grid table in the
>>>>> ## lower panel (i,j)]
>>>>> splom2 <- function(x, arr, nr){
>>>>> ## function for creating table
>>>>> table.fun <- function(vec){ # vector containing lines for table for *one* panel
>>>>> grid.table(matrix(vec, nrow=nr, byrow=TRUE),
>>>>> parse=TRUE, # parse labels as expressions
>>>>> theme=theme.list(
>>>>> gpar.corefill=gpar(fill=NA, col=NA), # make bg transparent
>>>>> core.just="left", padding.h=unit(0,"mm")) # justification of labels
>>>>> )
>>>>> }
>>>>> ## splom
>>>>> splom(x, varname.cex=1.2,
>>>>> superpanel=function(z, ...){
>>>>> panel.pairs(z, upper.panel=panel.splom, lower.panel=function(i,j){
>>>>> table.fun(arr[i,j,])
>>>>> }, ...)
>>>>> })
>>>>> }
>>>>>
>>>>> ## create data and array of expressions
>>>>> d <- 4
>>>>> x <- matrix(runif(d*1000), ncol=d) # data to be plotted with splom
>>>>> nr <- 3 # number of rows for the panel entries
>>>>> nc <- 3 # number of cols for the panel entries
>>>>> arr <- array(list(rep(NA,nr*nc)), dim=c(d,d,nr*nc), dimnames=c("i","j","val")) # array containing the table entries per panel
>>>>> f <- function(i,j) (i+j)*10 # dummy function
>>>>> eq <- "phantom()==phantom()"
>>>>> for(i in 1:d){
>>>>> for(j in 1:d){
>>>>> numbers <- align.digits(c(round(pi,4), round(pi, 6), f(i,j)))
>>>>> arr[i,j,] <- c("alpha", eq, numbers[1],
>>>>> "italic(bbb)", eq, numbers[2],
>>>>> "gamma", eq, numbers[3])
>>>>> }
>>>>> }
>>>>>
>>>>> ## plot
>>>>> splom2(x, arr, nr=3)
>>>>>
>>>>>
>>>>> On 2011-04-20, at 11:56 , baptiste auguie wrote:
>>>>>
>>>>>> On 20 April 2011 21:16, Marius Hofert <m_hofert at web.de> wrote:
>>>>>>> Dear expeRts,
>>>>>>>
>>>>>>> is there a way to get the entries in each panel correctly aligned according to the
>>>>>>> equality signs?
>>>>>>>
>>>>>>> Here is the "wish-list":
>>>>>>> (1) the equality signs in each panel should be vertically aligned
>>>>>>
>>>>>> You can put the equal signs in their own column,
>>>>>>
>>>>>> library(gridExtra)
>>>>>> d = matrix(c("italic(a)", "phantom()==phantom()", round(pi,4),
>>>>>> "italic(b)", "phantom()==phantom()", round(pi,6)), ncol=3, byrow=T)
>>>>>> grid.table(d, parse=T,theme=theme.list(core.just="left"))
>>>>>>
>>>>>>> (2) the numbers should be aligned on the decimal point
>>>>>>
>>>>>> You could place some phantom()s to do this,
>>>>>>
>>>>>> align.digits = function(l)
>>>>>> {
>>>>>>
>>>>>> sp <- strsplit(as.character(l), "\\.")
>>>>>> chars <- sapply(sp, function(x) nchar(x)[1])
>>>>>> n = max(chars) - chars
>>>>>> l0 = sapply(n, function(x) paste(rep("0", x), collapse=""))
>>>>>> labels = sapply(seq_along(sp), function(i) {
>>>>>> as.expression(bquote(phantom(.(l0[i])) * .(sp[[i]][1])*.*.(sp[[i]][2])))})
>>>>>>
>>>>>> return(labels)
>>>>>> }
>>>>>>
>>>>>> library(gridExtra)
>>>>>>
>>>>>> d <- align.digits(l = c(125.3, 1.23444444))
>>>>>> grid.table(d, parse=T,core.just="left")
>>>>>>
>>>>>> HTH,
>>>>>>
>>>>>> baptiste
>>>>>>
>>>>>>> One could adjust the phantom()-arguments by hand to achieve (1), but is there a
>>>>>>> simpler solution? For (2) I have no idea.
>>>>>>>
>>>>>>> Cheers,
>>>>>>>
>>>>>>> Marius
>>>>>>>
>>>>>>>
>>>>>>> library(lattice)
>>>>>>> library(grid)
>>>>>>> library(gridExtra)
>>>>>>>
>>>>>>> ## splom with customized lower.panel
>>>>>>> ## x: data
>>>>>>> ## arr: array of containing expressions which are plotted in a grid table in the
>>>>>>> ## lower panel (i,j)]
>>>>>>> splom2 <- function(x, arr){
>>>>>>> ## function for creating table
>>>>>>> table.fun <- function(vec){ # vector containing lines for table for *one* panel
>>>>>>> grid.table(matrix(vec, ncol=2, byrow=TRUE),
>>>>>>> parse=TRUE, # parse labels as expressions
>>>>>>> theme=theme.list(
>>>>>>> gpar.corefill=gpar(fill=NA, col=NA), # make bg transparent
>>>>>>> core.just="left", padding.h=unit(0,"mm")) # justification of labels
>>>>>>> )
>>>>>>> }
>>>>>>> ## splom
>>>>>>> splom(x, varname.cex=1.4,
>>>>>>> superpanel=function(z, ...){
>>>>>>> panel.pairs(z, upper.panel=panel.splom, lower.panel=function(i,j){
>>>>>>> table.fun(arr[i,j,])
>>>>>>> }, ...)
>>>>>>> })
>>>>>>> }
>>>>>>>
>>>>>>> ## create data and array of expressions
>>>>>>> d <- 4
>>>>>>> x <- matrix(runif(d*1000), ncol=d) # data to be plotted with splom
>>>>>>> arr <- array(list(rep(NA, 3*2)), dim=c(d,d,3*2), dimnames=c("i","j","val")) # array containing the table entries per panel
>>>>>>> f <- function(i,j) (i+j)*10+0.1 # dummy function
>>>>>>> for(i in 1:d){
>>>>>>> for(j in 1:d){
>>>>>>> arr[i,j,] <- c("alpha==phantom()", round(pi,4),
>>>>>>> "italic(bbb)==phantom()", round(pi,6),
>>>>>>> "gamma==phantom()", f(i,j))
>>>>>>> }
>>>>>>> }
>>>>>>>
>>>>>>> ## plot
>>>>>>> splom2(x, arr)
>>>>>>>
>>>>>>> ______________________________________________
>>>>>>> R-help at r-project.org mailing list
>>>>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>>>>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>>>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>>>>
>>>>>
>>>>> ______________________________________________
>>>>> R-help at r-project.org mailing list
>>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>>
>>>
>>>
>
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