pygraphviz

问题 I'm working to learning some Python graph visualization. I found a few blog posts doing some things I wanted to try. Unfortunately I didn't get too far, encountering this error: AttributeError: 'module' object has no attribute 'graphviz_layout' The simplest snip of code which reproduces the error on my system is this, In [1]: import networkx as nx In [2]: G=nx.complete_graph(5) In [3]: nx.draw_graphviz(G) ------------------------------------------------------------ AttributeError Traceback

问题 Is it possible to alter the following code to put Child_4 at the same horizontal level as Grandchild_0 (thereby pushing Grandchild_4 to its own level)? import networkx as nx import matplotlib.pyplot as plt G = nx.DiGraph() G.add_node("ROOT") for i in xrange(5): G.add_node("Child_%i" % i) G.add_node("Grandchild_%i" % i) G.add_edge("ROOT", "Child_%i" % i) G.add_edge("Child_%i" % i, "Grandchild_%i" % i) pos=nx.graphviz_layout(G,prog='dot') nx.draw(G,pos,arrows=False) plt.show() The above code

问题 I tried to install the package igraph on Anaconda but so far it did not work. If anyone find a way to get it, I would be very happy to try it !! Below are some details of what I tried to do (if you have the solution of installing igraph on Anaconda, you don't have to read it!). I'm on MAC OS X Yosemite (MAC book Pro 2,3 GHz Intel Core i7). Here are some configuration parameters: MBP-de-Lecue:site-packages lecueguillaume$ which python /Users/lecueguillaume/anaconda/bin/python MBP-de-Lecue:site

问题 this is brew list and pip list (lebienv) ➜ lebi git:(master) ✗ brew list graphviz libpng libxml2 mysql openssl (lebienv) ➜ lebi git:(master) ✗ pip list Flask (0.10.1) itsdangerous (0.24) Jinja2 (2.8) MarkupSafe (0.23) pip (8.0.3) setuptools (20.1.1) Werkzeug (0.11.4) wheel (0.29.0) (lebienv) ➜ lebi git:(master) ✗ and excute pip install pygraphviz (lebienv) ➜ lebi git:(master) ✗ pip install pygraphviz Collecting pygraphviz Using cached pygraphviz-1.3.1.tar.gz Building wheels for collected

问题 in python, with networkx. I can plot a vertical tree with : g=nx.balanced_tree(2,4) pos = nx.graphviz_layout(g, prog='dot') nx.draw(g,pos,labels=b_all, node_size=500) plt.show() similar to [root] | | | node node how I can plot a horizontal tree ? -- node [root] - -- node 回答1: Pass -Grankdir=LR option to dot: pos = nx.graphviz_layout(G, prog='dot', args="-Grankdir=LR") http://www.graphviz.org/content/command-line-invocation http://www.graphviz.org/content/attrs#drankdir 来源： https:/

问题 I am trying to install pygraphviz on Mac OS 10.7.5 running Anaconda Python. In the last installation step, I get this error: $ sudo python setup.py install library_path=/usr/local/lib/graphviz include_path=/usr/local/include/graphviz running install running build running build_py running build_ext building 'pygraphviz._graphviz' extension /usr/bin/clang -fno-strict-aliasing -I/Users/user2490492/anaconda/include -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -DNDEBUG -g -fwrapv -O3

问题 I am having problem with pygraphviz on win7(64). I installed Graphviz and then pygraphviz. When I try to compile my code G=pgv.AGraph() d={'1': {'2': None}, '2': {'1': None, '3': None}, '3': {'2': None}} A=pgv.AGraph(d) G.add_node(1, color='red') G.add_edge('b','c',color='blue') G.layout(prog='dot') G.draw('file.png') I get this error pydev debugger: starting Traceback (most recent call last): File "D:\Program Files\Eclipse\plugins\org.python.pydev_3.3.3.201401272249\pysrc\pydevd.py", line

问题 I tried to pip install pygraphviz , which failed with the error: "Microsoft Visual C++ 14.0 is required. ..." I have Visual Studio 2017 installed. Shouldn't that do the job? I think I checked every box related to C. If I try to install vc_redist.x64.exe, it tells me another version is already installed. (I think I have a similar/related problem with SciKit-learn and Scipy.) 回答1: From PyGraphviz documentation - To use PyGraphviz you need Python version 2.6.x or 2.7.x. PyGraphviz does not work

问题 I am trying to convert my text file to an undirected graph automatically with the help of graphviz. The text file consists of the following code: 0 A Relation B A Relation C B Relation C 1 0 A Relation C B Relation C 1 Here A, B and C are nodes. I may require a single or multiple graphs. 0 and 1 represent the start and end of each graph. The number of relations may also vary. I tried to proceed with sed, but got lost. How should I proceed to get the graph I require? Thanks for your help. 回答1:

问题 I have troubles installing pygraphviz on macOS 10.10.5. I have a fully functional installation of Python 2.7.x, and I'd like to run the test example of queueing-tool, which requires installing pygraphviz using pip. When executing the command pip install pygraphviz , I get the following lengthy error message: Collecting pygraphviz Using cached pygraphviz-1.3.1.zip Building wheels for collected packages: pygraphviz Running setup.py bdist_wheel for pygraphviz ... error Complete output from