[Rd] graphics: par(mfg=c(i,j,r,c)) (PR#529)

[Craig.Mckinstry@pnl.gov]

Full_Name: Craig A. McKinstry
Version: 1.0.0
OS: WinNT4.0 and Win98
Submission from: (NULL) (192.101.100.130)


When creating a multi-panel graphic, the command par(mfg=c(i,j,r,c)) is
supposed
to allow the user free movement between graphics panels to develop each panel 
separately. This works for the first invocation of par(mfg=c()) and for the 
first panel panel specified, but not for subsequent calls to the other panels. 

Coded example:

x_1:20
y_1:20
#these 5 commands produce a 2x2 panel plot
par(mfrow=c(2,2))
plot(x,y)
plot(x,y)
plot(x,y)
plot(x,y)

#the following 2 commands successfully added the text 'panel[2,1]' to
panel[2,1]
par(mfg=c(2,1,2,2))
text(10,10,'panel[2,1]')

#None of the following 3 command-pairs produced their intended results for the
other
# 3 panels
par(mfg=c(1,2,2,2))
text(10,10,'panel[1,2]')

par(mfg=c(1,1,2,2))
text(10,10,'panel[1,1]')

par(mfg=c(2,2,2,2))
text(10,10,'panel[2,2]')

#However, the following command-pair did as intended on the first panel
specified
# by mfg=c(2,1,2,2) above
par(mfg=c(2,1,2,2))
text(15,15,'panel[2,2]')

#Running this in S-plus 4.0 produced the intended results


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