graphviz

问题 This classifies the data as a decision tree. The decision tree is created but I am not able to view the decision tree. import numpy as np from sklearn import linear_model, datasets, tree import matplotlib.pyplot as plt iris = datasets.load_iris() f = open('decision_tree_data.txt') x_train = [] y_train = [] for line in f: line = np.asarray(line.split(),dtype = np.float32) x_train.append(line[:-1]) y_train.append(line[:-1]) x_train = np.asmatrix(x_train) y_train = np.asmatrix(y_train) model =

问题 This classifies the data as a decision tree. The decision tree is created but I am not able to view the decision tree. import numpy as np from sklearn import linear_model, datasets, tree import matplotlib.pyplot as plt iris = datasets.load_iris() f = open('decision_tree_data.txt') x_train = [] y_train = [] for line in f: line = np.asarray(line.split(),dtype = np.float32) x_train.append(line[:-1]) y_train.append(line[:-1]) x_train = np.asmatrix(x_train) y_train = np.asmatrix(y_train) model =

问题 I want to draw a decision tree with python3. Yet I can only find modules for python2: graphviz , ete3 Did I miss something? Can I use them with python3? Do you know any other possibilities? I use Ubuntu 14.04. Edit: I tried the command sudo python3 -m pip install graphviz , but it still can't find the module. 回答1: According to Graphviz's PyPI page, it is available for Python 3. On Ubuntu make sure you have graphviz with: sudo apt-get install python3-pygraphviz Perhaps Python3 can't find your

问题 I want to draw a decision tree with python3. Yet I can only find modules for python2: graphviz , ete3 Did I miss something? Can I use them with python3? Do you know any other possibilities? I use Ubuntu 14.04. Edit: I tried the command sudo python3 -m pip install graphviz , but it still can't find the module. 回答1: According to Graphviz's PyPI page, it is available for Python 3. On Ubuntu make sure you have graphviz with: sudo apt-get install python3-pygraphviz Perhaps Python3 can't find your

问题 I try to use dot for drawing a graph, and I have the following problem The label for node b overlaps with the edge from a to b . Is there a way to move this label somehow to avoid this? This is the code I use to generate the image (using dot ) digraph A { rankdir=LR; center=true; margin=0.3; nodesep=1.5; ranksep=0.5; node [shape=point, height=".2", width=".2"]; a [xlabel="a"]; b [xlabel="b"]; c [xlabel="c"]; a -> b -> c; a -> c; } This happens quite often and it's annoying (same here, but

问题 I try to create diagrams for MPLUS analyses with dot from the graphviz package. Does anybody have experience with using dot to visualize structural equation models/latent class mixture models? There is especially one feature that I can't figure out how to do beautifully: I need arrows from nodes to the center of another arrow like C | | V A ------------> B I tried to insert an invisible node at the intersection of the arrows. This, however, results in a "cracked" A--->B arrow because dot does

问题 I believe I have installed pygraphviz on my Debian build. I can import it if I run Python from the command line: jon@debian:~/anaconda3/bin$ ipython Python 3.5.1 |Continuum Analytics, Inc.| (default, Dec 7 2015, 11:17:45) Type "copyright", "credits" or "license" for more information. IPython 4.1.2 -- An enhanced Interactive Python. ? -> Introduction and overview of IPython's features. %quickref -> Quick reference. help -> Python's own help system. object? -> Details about 'object', use

问题 Is there -- either via a language feature or via a preporcessor -- a possiblity to include external .dot files as subgraphs into another one? I am working on a relatively big graph, though manually maintained, not generated. It would be convenient to be able to define some subgraph01.dot : digraph subgraph01 { /* lot of nodes and edges */ } subgraph02.dot : digraph subgraph02 { /* lot of nodes and edges */ } And then do something like graph.dot : digraph BigGraph { import subgraph01; import

问题 I am trying to visualize a tree structure using graphviz, problem is as the graph gets bigger graphviz starts to rearrange the order of the nodes. Say I have the following, A / | \ B C D it becomes, A / | \ B D C it probably does this to save space but in my context order of the nodes matter I have tried adding, graph [ordering="out"]; but it did not change the output. EDIT: digraph bt { graph [ordering="out"]; node [style="rounded", shape=box] N_2386 -> N_2387 N_2387 -> N_2388 N_2388 -> N

问题 I am looking for a Java or Python library that can render graphs in the Dot language as image file. The problem is that I need a library that I can use on Google App Engine. Basically I am looking for a library that can convert the text description of a directed graph into an image of the graph. For example: Covert this edge list: [A,B] [B,C] [A,C] [C,D] Into this image: I used Graphviz for this example, but I know it is not possible for me to use it with Google App Engine. 回答1: Canviz is