Transform a layout matrix into a position one

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Description

This function transforms layout's informations into a position matrix useful for ADEgS and for lattice graphics.

Usage

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layout2position(mat, widths = rep(1, NCOL(mat)), heights = rep(1, NROW(mat)), ng, 
square = FALSE)

Arguments

mat

a matrix indicating the location of figures to display (each value must be 0 or a positive integer) or a two-length vector indicating the number of rows and columns in the corresponding layout.

widths

a vector of relative values for the columns' widths on the device. Their sum must be equal to the number of columns.

heights

a vector of relative values for the rows' heights on the device. Their sum must be equal to the number of rows.

ng

a value for the number of positions needed (i.e. the number of graphics to plot)

square

a logical indicating if the graphics is an isometric plot

Value

A four-columns matrix indicating the coordinates (in normalized parent coordinates npc) of the top-right and bottom-left hand corners of each displayed figure on the device.

Note

This function is strongly inspired by the layout function in graphics package.

Author(s)

Alice Julien-Laferriere, Aurelie Siberchicot aurelie.siberchicot@univ-lyon1.fr and Stephane Dray

See Also

layout

Examples

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layout2position(mat = rbind(c(0, 0, 1), c(2, 2, 1)))
layout2position(mat = cbind(c(0, 0, 1), c(2, 2, 1)), widths = c(0.5, 1.5))

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