I found a few posts including this one on how to generate a dependency graph. However, I'm looking for an option to export a dependency graph as a PNG/SVG image.
For simplicity, let's assume we already parsed a sentence The quick brown fox jumps over the lazy dog.
and we have the output in to_conll(4) format. Now if pass this result to the DependencyGrpah
class
from nltk.parse import DependencyGraph
DependencyGraph(
'''The DT 4 det
quick JJ 4 amod
brown JJ 4 amod
fox NN 5 nsubj
jumps VBZ 0 ROOT
over IN 9 case
the DT 9 det
lazy JJ 9 amod
dog NN 5 obl
. . 5 punct'''
)
It produces the following the image
My question is how can I save this image as a PNG/SVG file?
You can convert it from a .ps
to a .png
.
import os
from nltk.draw.tree import TreeView
TreeView(GRAPH)._cframe.print_to_file('tree.ps')
os.system('convert tree.ps tree.png')
If you are using VScode to experiment with notebook files, there is a small icon at the right upper corner. then there will be an icon in the right upper corner to save your graph.
You can use the method to_dot()
on your DataGraph object, and then proceed to create a Graphviz object from raw and then save it into a file with render
.
You can choose both the filename and the format (png, pdf...), as reported in the method signature
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