Hello R friends,
I get quite confused in using the grid graphic function grid.pack( )
and grid.frame ( ). Here is a simple example:
library(grid)
grid.frame(name="frame1")
grid.pack("frame1",rectGrob(width=unit(0.5,"npc"),
height=unit(0.5,"npc"), gp=gpar(col="red")))
what I expect is a rectangle with half the default device's
dimensions,but it returns a rectangle like 1/4 of the device.why?
In addition wonder what the rectGrob is referred to if there are x.y arguments.
Another question is I want to pack several barplots of different
sizes in a row by average space,but the grid.pack just didn't work
out, which gave me a layout that the the space between the midlines of
each figure equals,not between their bounders. I have been working on
this for a couple of days with more confusion.
I hope someone can help me out. I will greatly appreciate it.
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