3

I'm having trouble using factor in ggplot for python. Here is the R code that I want to re-create in python.

library('ggplot2')
head(iris)
ggplot(iris, aes(Sepal.Length,Sepal.Width)) + geom_point(aes(colour=factor(Species)))

In python I do the following:

from ggplot import *
from sklearn.datasets import load_iris
iris = load_iris()
ggplot(iris.data, aes(iris.data[:, x_index], iris.data[:, y_index])) \
+ geom_point(aes(colour = iris.target)) + xlab('x axis') + ylab('y axis')

I keep getting errors. I believe this has to do with the factor part. I can't set to a factor and then allow it to plot. Any help would be appreciated.

Improve this question
1
  • I don't know what load_iris() produces, but I supect that it is not a pandas dataframe. you probably want iris_df = pandas.DataFrame(iris.data.data, columns=iris.feature_names); iris_df["flower_types"] = iris.target. Afterwards you should be able to use the column names (iris_df.columns) to specify the aes and colour. You don't need factor if iris_df["flower_types"] is of dtype string -> ggplot automatically uses strings as if they were factors (unfortunately you can't reorder them :-() Commented Apr 19, 2015 at 21:27
Related questions
2
R ggplot2 question - working with factors
0
Dealing with Factors
2
plot raster factor values with ggplot
Load 7 more related questions Show fewer related questions

0

Reset to default

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.