using for loop to install conda package

This commit is contained in:
ton
2023-04-16 11:03:27 +07:00
parent 49da9f29c1
commit 0c2b34d6f8
12168 changed files with 2656238 additions and 1 deletions

View File

@@ -0,0 +1,2 @@
Basic
-----

View File

@@ -0,0 +1,49 @@
"""
==========
Properties
==========
Compute some network properties for the lollipop graph.
"""
import matplotlib.pyplot as plt
import networkx as nx
G = nx.lollipop_graph(4, 6)
pathlengths = []
print("source vertex {target:length, }")
for v in G.nodes():
spl = dict(nx.single_source_shortest_path_length(G, v))
print(f"{v} {spl} ")
for p in spl:
pathlengths.append(spl[p])
print()
print(f"average shortest path length {sum(pathlengths) / len(pathlengths)}")
# histogram of path lengths
dist = {}
for p in pathlengths:
if p in dist:
dist[p] += 1
else:
dist[p] = 1
print()
print("length #paths")
verts = dist.keys()
for d in sorted(verts):
print(f"{d} {dist[d]}")
print(f"radius: {nx.radius(G)}")
print(f"diameter: {nx.diameter(G)}")
print(f"eccentricity: {nx.eccentricity(G)}")
print(f"center: {nx.center(G)}")
print(f"periphery: {nx.periphery(G)}")
print(f"density: {nx.density(G)}")
pos = nx.spring_layout(G, seed=3068) # Seed layout for reproducibility
nx.draw(G, pos=pos, with_labels=True)
plt.show()

View File

@@ -0,0 +1,24 @@
"""
======================
Read and write graphs.
======================
Read and write graphs.
"""
import matplotlib.pyplot as plt
import networkx as nx
G = nx.grid_2d_graph(5, 5) # 5x5 grid
# print the adjacency list
for line in nx.generate_adjlist(G):
print(line)
# write edgelist to grid.edgelist
nx.write_edgelist(G, path="grid.edgelist", delimiter=":")
# read edgelist from grid.edgelist
H = nx.read_edgelist(path="grid.edgelist", delimiter=":")
pos = nx.spring_layout(H, seed=200)
nx.draw(H, pos)
plt.show()

View File

@@ -0,0 +1,60 @@
"""
============
Simple graph
============
Draw simple graph with manual layout.
"""
import networkx as nx
import matplotlib.pyplot as plt
G = nx.Graph()
G.add_edge(1, 2)
G.add_edge(1, 3)
G.add_edge(1, 5)
G.add_edge(2, 3)
G.add_edge(3, 4)
G.add_edge(4, 5)
# explicitly set positions
pos = {1: (0, 0), 2: (-1, 0.3), 3: (2, 0.17), 4: (4, 0.255), 5: (5, 0.03)}
options = {
"font_size": 36,
"node_size": 3000,
"node_color": "white",
"edgecolors": "black",
"linewidths": 5,
"width": 5,
}
nx.draw_networkx(G, pos, **options)
# Set margins for the axes so that nodes aren't clipped
ax = plt.gca()
ax.margins(0.20)
plt.axis("off")
plt.show()
# %%
# A directed graph
G = nx.DiGraph([(0, 3), (1, 3), (2, 4), (3, 5), (3, 6), (4, 6), (5, 6)])
# group nodes by column
left_nodes = [0, 1, 2]
middle_nodes = [3, 4]
right_nodes = [5, 6]
# set the position according to column (x-coord)
pos = {n: (0, i) for i, n in enumerate(left_nodes)}
pos.update({n: (1, i + 0.5) for i, n in enumerate(middle_nodes)})
pos.update({n: (2, i + 0.5) for i, n in enumerate(right_nodes)})
nx.draw_networkx(G, pos, **options)
# Set margins for the axes so that nodes aren't clipped
ax = plt.gca()
ax.margins(0.20)
plt.axis("off")
plt.show()