Is it possible to format the x axis, so that days are spaced
proportionately?
i.e. a larger space between 50 & 100, than 0 and 5?
Have not had any luck with axis.POSIXct().
Many thanks
Murray
try <-
structure(list(visit = structure(as.integer(c(1, 2, 3, 4, 5,
1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1,
2, 3, 4, 5)), .Label = c("Screening", "0", "5", "50", "100"), class =
c("ordered",
"factor")), group = structure(as.integer(c(2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1)), .Label = c("Placebo", "Treatment"), class = "factor"),
variable = as.integer(c(11, 10, 13, 19, 32, 10, 15, 16, 21,
25, 10, 15, 16, 19, 25, 11, 10, 15, 14, 13, 14, 15, 14, 19,
18, 9, 9, 14, 15, 16))), .Names = c("visit", "group", "variable"
), row.names = c("1", "2", "3", "4", "5", "6", "7", "8", "9",
"10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20",
"21", "22", "23", "24", "25", "26", "27", "28", "29", "30"), class = "
data.frame")
try$visit <- ordered(try$visit,levels=c("Screening","0","5","50","100"))
library(sciplot)
attach(try)
lineplot.CI(visit,variable,group,type = "b",
bty = "n",
pch = 16,
fixed=TRUE,
ylab = "Mean of Variable",
xtick = TRUE,
xlab = "Day",
x.leg = 1, y.leg = 25,
cex.leg = 0.9,
lty = c(1,5)
)
detach(try)
rm(try)
--
Murray Pung
Statistician, Datapharm Australia Pty Ltd
0404 273 283
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