Nothing
.plt.marg <- function(max.y.width, y.lab, x.lab, main, sub,
rotate_x=0, mx.x.val.ln=1, mx.y.val.ln=1,
lab_x_cex=0.95, lab_y_cex=0.95, max.x.width=NULL) {
# not processing sub at this time
# top margin
tm <- 0.05 # old is 0.15
if (!is.null(main)) tm <- tm + .25
# if (options("device") == "RStudioGD") {
# tm <- ifelse(.Platform$OS == "windows", tm-.15, 0)
# }
# right margin
rm <- 0.15
# bottom margin
n.lab_x.ln <- 0 # in case x.lab is null
if (!is.null(x.lab)) {
if (x.lab != "") {
strn <- unlist(gregexpr("\n", x.lab, fixed=TRUE))
if (strn[1] == -1) strn <- NULL # return of -1 means no \n
n.lab_x.ln <- length(strn) + 1
}
else # such as from default for time series
n.lab_x.ln <- -0.6 + (.1 * lab_x_cex)
}
ln.ht <- par('cin')[2] * lab_x_cex * par('lheight') # lin ht inches
# rotate_x==90 and horiz=TRUE not compatible, leads to NULL max.x.width
if (rotate_x != 90 || is.null(max.x.width))
bm <- ((n.lab_x.ln + mx.x.val.ln) * .70 * ln.ht) + 0.30 # inches
else
bm <- max.x.width + (ln.ht * n.lab_x.ln) + 0.28
bm <- bm + (-0.065 +(.055* n.lab_x.ln))
tm <- ifelse (is.null(main), tm+.05, tm+.25) # adjust tm for increased bm
if (rotate_x != 0) bm <- bm + .15
if (lab_x_cex > 1.1) bm <- bm + .04 # actually should be axis_cex
# left margin
n.lab_y.ln <- 0 # in case x.lab is null
if (!is.null(y.lab)) {
if (y.lab != "") {
strn <- unlist(gregexpr("\n", y.lab, fixed=TRUE))
if (strn[1] == -1) strn <- NULL # return of -1 means no \n
n.lab_y.ln <- length(strn) + 1
}
}
mm <- max.y.width + 0.27
if (max.y.width < .10) mm <- mm + .02
if (lab_y_cex > 1) mm <- mm + .10
if (!is.null(y.lab)) mm <- mm + (n.lab_y.ln * .20)
return(list(lm=mm, tm=tm, rm=rm, bm=bm,
n.lab_x.ln=n.lab_x.ln, n.lab_y.ln=n.lab_y.ln))
}
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