<jupyter_start><jupyter_text>seaborn*seaborn* is an extension of [matplotlib](http://matplotlib.org/) for statisticians. Graphs are really nice and famous among statisticians. However, it is difficult to draw a graph with weighted observations. [documentation](https://web.stanford.edu/~mwaskom/software/seaborn/) [source](https://github.com/mwaskom/seaborn) [installation](https://stanford.edu/~mwaskom/software/seaborn/installing.html) [tutorial](https://web.stanford.edu/~mwaskom/software/seaborn/tutorial.html) [gallerie](https://stanford.edu/~mwaskom/software/seaborn/examples/index.html)<jupyter_code>%matplotlib inline
from jyquickhelper import add_notebook_menu
add_notebook_menu()<jupyter_output><empty_output><jupyter_text>example<jupyter_code>import numpy
import seaborn
x = numpy.random.normal(size=100)
seaborn.distplot(x)
iris = seaborn.load_dataset("iris")
seaborn.pairplot(iris)<jupyter_output><empty_output>
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