search for: rpref

Dear R users, the first 1.0 version of the rPref package is now on CRAN. rPref allows to select the Pareto-optimal tuples from a data set, also called Skylines in the database community. For example, optimal tuples from mtcars according to "high(mpg) * high(hp)" (where "*" is the Pareto operator) are those cars, for which...

Hi Ulrik, Thanks for your suggestion, but it was not what I meant. I tried to use the rPref package but just got a very small sample and felt clueless. On Sat, Aug 26, 2017 at 12:37 AM, Ulrik Stervbo <ulrik.stervbo at gmail.com> wrote: > HI lily, > > for the colouring of individual points you can set the colour aesthetic. > The ID is numeric so ggplot applies a colour...

HI lily, for the colouring of individual points you can set the colour aesthetic. The ID is numeric so ggplot applies a colour scale. If we cast ID to a factor we get the appropriate colouring. test_df <- data.frame(ID = 1:20, v1 = rnorm(20), v2 = rnorm(20), v3 = rnorm(20)) ggplot(data=test_df, aes(x=v1,y=v2, colour = as.factor(ID))) + geom_point()+ theme_bw()+ xlab('Variable 1')+

Hi R users, I have some sets of variables and put them into one dataframe, like in the following. How to choose a specific set of pareto front, such as 10 from the current datasets (which contains more than 100 sets)? And how to show the 10 points on one figure with different colors? I can put all the points on one figure though, and have the code below. I drew two ggplots to show their