agraph | Client for the AllegroGraph 4.x RDF graph database | Data Manipulation library
kandi X-RAY | agraph Summary
kandi X-RAY | agraph Summary
Client for the AllegroGraph 4.x RDF graph database.
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Top functions reviewed by kandi - BETA
- Retrieve all the catalogs for a given catalog
- Create a new server .
- Returns the version information
- Increment indices .
- Sets whether or not .
- Remove duplicate statements
- request a json request
- Requests the HTTP server .
- Create a new transaction .
agraph Key Features
agraph Examples and Code Snippets
Community Discussions
Trending Discussions on agraph
QUESTION
How i get the PreOrder,InOrder,PostOrder to work?
Here are my current code and implementation, see InOrder(),PreOrder(),PostOrder(). I have a reference from Geek4Geek (https://www.geeksforgeeks.org/tree-traversals-inorder-preorder-and-postorder/).
When i do a print(bst.InOrder()) it return None?
...ANSWER
Answered 2021-Mar-20 at 11:26It seems to me like your stop condition is incorrect. The default values for children (and the root) are None so you should check for z == None. Also it seems like you are mixing up child nodes and keys. It seems to me the best approach would be to first find the node with the desired key and then calculate the subtree size recursively on this node. See the code below.
QUESTION
Good day
When I run the command pip install eralchemy in a clear Jupyter notebook from a Windows device, I get the lengthy error message below. I have already installed Graphviz with Chocolate and Visual Studio with its BuildTools. Any help?
...ERROR: Command errored out with exit status 1: command: 'C:\Users\stanj\anaconda3\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\stanj\AppData\Local\Temp\pip-install-pw34pfvb\pygraphviz\setup.py'"'"'; file='"'"'C:\Users\stanj\AppData\Local\Temp\pip-install-pw34pfvb\pygraphviz\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\stanj\AppData\Local\Temp\pip-wheel-68acdv22' cwd: C:\Users\stanj\AppData\Local\Temp\pip-install-pw34pfvb\pygraphviz\
Complete output (46 lines): running bdist_wheel running build
running build_py creating build Collecting eralchemy Using cached ERAlchemy-1.2.10-py2.py3-none-any.whl (14 kB) Collecting pygraphviz
Using cached pygraphviz-1.7.zip (118 kB) Requirement already satisfied: SQLAlchemy in c:\users\stanj\anaconda3\lib\site-packages (from eralchemy) (1.3.18) Building wheels for collected packages: pygraphviz Building wheel for pygraphviz (setup.py): started
Building wheel for pygraphviz (setup.py): finished with status 'error' Running setup.py clean for pygraphviz Failed to build pygraphviz Installing collected packages: pygraphviz, eralchemy Running setup.py install for pygraphviz: started Running setup.py install for pygraphviz: finished with status 'error' creating build\lib.win-amd64-3.8 creating build\lib.win-amd64-3.8\pygraphviz copying pygraphviz\agraph.py -> build\lib.win-amd64-3.8\pygraphviz copying pygraphviz\graphviz.py -> build\lib.win-amd64-3.8\pygraphviz copying pygraphviz\scraper.py -> build\lib.win-amd64-3.8\pygraphviz copying pygraphviz\testing.py -> build\lib.win-amd64-3.8\pygraphviz copying pygraphviz_init_.py -> build\lib.win-amd64-3.8\pygraphviz creating build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_attribute_defaults.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_clear.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_close.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_drawing.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_edge_attributes.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_graph.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_html.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_layout.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_node_attributes.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_readwrite.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_scraper.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_string.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_subgraph.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_unicode.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests_init_.py -> build\lib.win-amd64-3.8\pygraphviz\tests running egg_info writing pygraphviz.egg-info\PKG-INFO writing dependency_links to pygraphviz.egg-info\dependency_links.txt writing top-level names to pygraphviz.egg-info\top_level.txt reading manifest file 'pygraphviz.egg-info\SOURCES.txt' reading manifest template 'MANIFEST.in' warning: no files found matching '.png' under directory 'doc' warning: no files found matching '.txt' under directory 'doc' warning: no files found matching '.css' under directory 'doc' warning: no previously-included files matching '~' found anywhere in distribution warning: no previously-included files matching '.pyc' found anywhere in distribution warning: no previously-included files matching '.svn' found anywhere in distribution no previously-included directories found matching 'doc\build' writing manifest file 'pygraphviz.egg-info\SOURCES.txt' copying pygraphviz\graphviz.i -> build\lib.win-amd64-3.8\pygraphviz
copying pygraphviz\graphviz_wrap.c -> build\lib.win-amd64-3.8\pygraphviz running build_ext building 'pygraphviz.graphviz' extension error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio": https://visualstudio.microsoft.com/downloads/
---------------------------------------- ERROR: Failed building wheel for pygraphviz ERROR: Command errored out with exit status 1: command: 'C:\Users\stanj\anaconda3\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\stanj\AppData\Local\Temp\pip-install-pw34pfvb\pygraphviz\setup.py'"'"'; file='"'"'C:\Users\stanj\AppData\Local\Temp\pip-install-pw34pfvb\pygraphviz\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record 'C:\Users\stanj\AppData\Local\Temp\pip-record-v7o_3mbj\install-record.txt' --single-version-externally-managed --compile --install-headers 'C:\Users\stanj\anaconda3\Include\pygraphviz' cwd: C:\Users\stanj\AppData\Local\Temp\pip-install-pw34pfvb\pygraphviz
Complete output (46 lines): running install running build running build_py creating build creating build\lib.win-amd64-3.8 creating build\lib.win-amd64-3.8\pygraphviz copying pygraphviz\agraph.py -> build\lib.win-amd64-3.8\pygraphviz copying pygraphviz\graphviz.py -> build\lib.win-amd64-3.8\pygraphviz copying pygraphviz\scraper.py -> build\lib.win-amd64-3.8\pygraphviz copying pygraphviz\testing.py -> build\lib.win-amd64-3.8\pygraphviz copying pygraphviz_init.py -> build\lib.win-amd64-3.8\pygraphviz creating build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_attribute_defaults.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_clear.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_close.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_drawing.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_edge_attributes.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_graph.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_html.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_layout.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_node_attributes.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_readwrite.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_scraper.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_string.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_subgraph.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests\test_unicode.py -> build\lib.win-amd64-3.8\pygraphviz\tests copying pygraphviz\tests_init_.py -> build\lib.win-amd64-3.8\pygraphviz\tests running egg_info writing pygraphviz.egg-info\PKG-INFO writing dependency_links to pygraphviz.egg-info\dependency_links.txt writing top-level names to pygraphviz.egg-info\top_level.txt reading manifest file 'pygraphviz.egg-info\SOURCES.txt' reading manifest template 'MANIFEST.in' warning: no files found matching '.png' under directory 'doc' warning: no files found matching '.txt' under directory 'doc' warning: no files found matching '.css' under directory 'doc' warning: no previously-included files matching '~' found anywhere in distribution warning: no previously-included files matching '.pyc' found anywhere in distribution warning: no previously-included files matching '.svn' found anywhere in distribution no previously-included directories found matching 'doc\build' writing manifest file 'pygraphviz.egg-info\SOURCES.txt' copying pygraphviz\graphviz.i -> build\lib.win-amd64-3.8\pygraphviz copying pygraphviz\graphviz_wrap.c -> build\lib.win-amd64-3.8\pygraphviz running build_ext building 'pygraphviz._graphviz' extension error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio": https://visualstudio.microsoft.com/downloads/ ---------------------------------------- ERROR: Command errored out with exit status 1: 'C:\Users\stanj\anaconda3\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\stanj\AppData\Local\Temp\pip-install-pw34pfvb\pygraphviz\setup.py'"'"'; file='"'"'C:\Users\stanj\AppData\Local\Temp\pip-install-pw34pfvb\pygraphviz\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record 'C:\Users\stanj\AppData\Local\Temp\pip-record-v7o_3mbj\install-record.txt' --single-version-externally-managed --compile --install-headers 'C:\Users\stanj\anaconda3\Include\pygraphviz' Check the logs for full command output.
ANSWER
Answered 2021-Feb-26 at 09:41This should work :
pip install --upgrade --no-deps git+https://github.com/psychemedia/eralchemy.git
QUESTION
I have a DataFrame network_df consisting of an edge list
ANSWER
Answered 2020-Oct-16 at 10:15The following should work:
QUESTION
I am trying to get my data to interact with the jQuery slider. My Data is represented with vertical lines in steelblue, but the jQuery slider only interacts with the lightgrey vertical lines xAxis since I set it up with the xAxis x.axis and its path. It only moves with slider, but not the actual vertical lines in steelblue. I can't use d3 slider and I am stuck with this d3 v2. I asked a question in regards to the vertical line: (How to interact JQuery slider with d3 vertical lines for every data point), but was recommended to ask a separate question to this slider issue :( Any input will help! Here is the code:
...ANSWER
Answered 2020-Oct-19 at 08:35I'd recommend using d3-brush, since it is essentially what you want, but built by the d3 team, for d3.
If you can't however, I've made it work below with your jQuery slider. You were fiddling with the axis ticks, but I recommend just redrawing the axis and letting d3 do that for you. Every tick I update the x.domain(), then call the draw() function to let the vertical lines and circles be redrawn` and redraw the x-axis. I've given all lines and circles outside the domain opacity 0 so they're hidden.
QUESTION
I am trying to create an interactive slider zooming and filtering into a data range using vertical line from each data point selected. I am not sure how to draw every vertical lines on each data point so the slider can zoom and filter vertical lines on this data range. Currently, I can draw circles on every data point and one vertical line (see attached output graph), but would like to draw vertical lines on top of those circles or just for each data point if d3 has some way to do it. I am new to d3 and I will appreciate your feedback! Here is what I have so far learning from other useful sites.
...ANSWER
Answered 2020-Oct-14 at 19:59To add the lines, just repeat what you did with the circles one more time.
QUESTION
I'm loading an image into a TPaintBox, then try to rotate it with SetWorldTransform as suggested in this answer:
The picture loads fine via the TPaintBox.Invalidate -> TPaintBox.OnPaint.
But when I click the test button BtnRotateWorldTransform,
I see the image flicker but no rotation.
ANSWER
Answered 2020-Sep-04 at 09:26I wrote a complete example. In this example, I show how to rotate, translate, scale an image and combine those transformations.
For the purpose, I wrote 3 functions to prepare the rotation, scaling and translation easily.
In the PaintBox1Paint event handler, I take fixed values for the rotation, scaling and translation. Of course, in a normal application this comes from elsewhere (UI for example). Transformation computation should be outside of the PaintBox1Paint procedure and done each time the parameters varies. Then Invalidate should be called so that it is repainted with the new computed transformation.
QUESTION
I would like to create agraph from the json data bellow
...ANSWER
Answered 2020-Aug-20 at 14:13A constructor in Java is a special method that is used to initialise objects. The constructor is called when an object of a class is created.
QUESTION
I want to know the subgraph structure for a given node.
I'm ok with a networkx solution also.
Here is my code.
...ANSWER
Answered 2020-Apr-23 at 08:49You can use a recursive approach like this:
QUESTION
I am using pygraphviz to create a large number of graphs for different configurations of data. I have found that no matter what information is put in the graph the program will crash after drawing the 170th graph. There are no error messages generated the program just stops. Is there something that needs to be reset if drawing this many graphs?
I am running Python 3.7 on a Windows 10 machine, Pygraphviz 1.5, and graphviz 2.38
...ANSWER
Answered 2020-Apr-09 at 08:13I was able to constantly reproduce the behavior with:
- Python 3.7.6 (pc064 (64bit), then also with pc032)
- PyGraphviz 1.5 (that I built - available for download at [GitHub]: CristiFati/Prebuilt-Binaries - Various software built on various platforms. (under PyGraphviz, naturally) - might also want to check [SO]: Installing pygraphviz on Windows 10 64-bit, Python 3.6 (@CristiFati's answer))
- Graphviz 2.42.2 ((pc032) same as #2.)
I suspected an Undefined Behavior (UB) somewhere in the code, even if the behavior was precisely the same:
- OK for 169 graphs
- Crash for 170
Did some debugging (added some print(f) statements in agraph.py, and cgraph.dll (write.c)).
PyGraphviz invokes Graphviz's tools (.exes) for many operations. For that, it uses subprocess.Popen and communicates with the child process via its 3 available streams (stdin, stdout, stderr).
From the beginning I noticed that 170 * 3 = 510 (awfully close to 512 (0x200)), but didn't pay as much attention as I should have til later (mostly because the Python process (running the code below) had no more than ~150 open handles in Task Manager (TM) and also Process Explorer (PE)).
However, a bit of Googleing revealed:
- [SO]: Is there a limit on number of open files in Windows (@stackprogrammer's answer) (and from here)
[MS.Docs]: _setmaxstdio (which states (emphasis is mine)):
C run-time I/O now supports up to 8,192 files open simultaneously at the low I/O level. This level includes files opened and accessed using the _open, _read, and _write family of I/O functions. By default, up to 512 files can be open simultaneously at the stream I/O level. This level includes files opened and accessed using the fopen, fgetc, and fputc family of functions. The limit of 512 open files at the stream I/O level can be increased to a maximum of 8,192 by use of the _setmaxstdio function.
[SO]: Python: Which command increases the number of open files on Windows? (@NorthCat's answer)
Below is your code that I modified for debugging and reproducing the error. It needs the PyWin32 package (python -m pip install pywin32).
code00.py:
QUESTION
I'm trying to visualize an automaton in pygraphviz, like the example in graphviz documentation:
I've found that node shapes can be changed like:
...ANSWER
Answered 2020-Jan-05 at 15:45All the information is contained in the pygraphviz documentation (http://pygraphviz.github.io/documentation/pygraphviz-1.5/tutorial.html#nodes-and-edges) in the paragraph Attributes where it states:
To set the default attributes for graphs, nodes, and edges use the graph_attr, node_attr, and edge_attr dictionaries
G.graph_attr['label']='Name of graph' G.node_attr['shape']='circle' G.edge_attr['color']='red'
Graph attributes can be set when initializing the graph
G=pgv.AGraph(ranksep='0.1')
Attributes can be added when adding nodes or edges,
G.add_node(1, color='red') G.add_edge('b','c',color='blue')
or through the node or edge attr dictionaries,
n=G.get_node(1) n.attr['shape']='box'
e=G.get_edge('b','c') e.attr['color']='green'
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