Hello,
Here are two ways of drawing the lines black and at the same time
removing the lines in the legend. The second way is more idiomatic.
1. Override the colour setting in the ggplot call when drawing the lines:
geom_line(aes(y = y1), colour = "black") +
2. Don't set the colour aestheti
On 2/12/19 5:08 pm, Rui Barradas wrote:
Hello,
Here are two ways of drawing the lines black and at the same time
removing the lines in the legend. The second way is more idiomatic.
1. Override the colour setting in the ggplot call when drawing the lines:
geom_line(aes(y = y1), colour = "bla
On 2/12/19 3:03 am, Rui Barradas wrote:
Hello,
See if this is it. The standard trick is to reshape the data from wide
to long, see the SO post [1]. Then add a scale_shape_* layer to the plot.
yyy <- cbind(xxx, y3 = y3)
long <- reshape2::melt(yyy, id.vars = c("x", "y1", "grp"))
ggplot(lon
lour=type, shape=type)) + geom_point() +
geom_abline(intercept=3, slope=2) + facet_grid(rows=vars(type), cols=vars(grp))
+ scale_colour_manual(values=c("blue", "red")) +
scale_shape_manual(values=c(20,3))
Antony Unwin
University of Augsburg,
Germany
> From: Rolf Turne
Hi Rolf,
Some code to produce the plot you want is here:
https://gist.github.com/jeffreypullin/be752f11a136601ffecddc73ba0519b9
Hope you find it helpful.
Personally I have found that the key to effective ggplot2 use is getting
your data into the right format (one data.frame, tidy style) before
Hello,
See if this is it. The standard trick is to reshape the data from wide
to long, see the SO post [1]. Then add a scale_shape_* layer to the plot.
yyy <- cbind(xxx, y3 = y3)
long <- reshape2::melt(yyy, id.vars = c("x", "y1", "grp"))
ggplot(long, aes(x, y = value, colour = variable, shap
I have been struggling to add a legend as indicated in the subject line,
with no success at all. I find the help to be completely bewildering.
I have attached the code of what I have tried in the context of a simple
reproducible example.
I have also attached a pdf file of a plot produced with
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