R help - Jan 2012 - ggplot- using geom_point and geom_line at the same time

Hi
I am plotting line chart using ggplot and want to use geom_line and
geom_point simultaneously.
I get the plot but now I have two legends.  None of the legend is
representing the true values. I need the legend with shape and color both.
Thanks


> con = textConnection("inputs  var1	var2	var3+ 100	10	5	2+ 1000	20	10
4+ 5000	30	15	8+ 10000	40	20	16+ 30000	50	25	32")> data =
read.table(con, header=TRUE)> data  inputs var1 var2 var3
1    100   10    5    2
2   1000   20   10    4
3   5000   30   15    8
4  10000   40   20   16
5  30000   50   25   32> data = melt(data, id="inputs")> data  
inputs
variable value
1     100     var1    10
2    1000     var1    20
3    5000     var1    30
4   10000     var1    40
5   30000     var1    50
6     100     var2     5
7    1000     var2    10
8    5000     var2    15
9   10000     var2    20
10  30000     var2    25
11    100     var3     2
12   1000     var3     4
13   5000     var3     8
14  10000     var3    16
15  30000     var3    32> g <- ggplot(data,aes(x=inputs, value,
colour=variable, fill = variable))> g <- g +
geom_point(aes(shape=variable), size=3) > g <- g +  geom_line(lwd=1) +
ylab("time") + xlab("inputs") + 
labs(colour="MyLegend",  fill "MyLegend")> g

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Hi
I am plotting line chart using ggplot and want to use geom_line and
geom_point simultaneously. I want to rename my legend but uptonow I remain
unsuccessful.
Someone please point what to add for renaming the legend.
I attached my example below.
Thanks



con = textConnection("inputs  var1  var2 var3
100 10 5 2
1000 20 10 4
5000 30 15 8
10000 40 20 16
30000 50 25 32")
 data = read.table(con, header=TRUE)
 data
 data = melt(data, id="inputs")
 g <- ggplot(data,aes(x=inputs, value, colour= variable, fill = variable,
shape=variable))
 g <- g + geom_line(lwd=0.8)
 g <- g + geom_point()
 g <- g + scale_x_continuous(name='Number of inputs')
 g <- g + scale_y_continuous('Conversion time (sec.)')
g



-- 
-------------
Mary Kindall
Yorktown Heights, NY
USA

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