Initial commit

usa_roads.ipynb

@@ -0,0 +1,251 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "import numpy as np\n",
+    "import pandas as pd\n",
+    "import matplotlib.pyplot as plt\n",
+    "%matplotlib inline"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "import graph_tool.all as gt"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "version: 2.26 (commit b89e6b4e, Thu Nov 9 14:55:43 2017 +0000)\n",
+      "gcc version: 7.2.0\n",
+      "compilation flags: -DNDEBUG -D_FORTIFY_SOURCE=2 -fopenmp -O3 -fvisibility=default -fvisibility-inlines-hidden -Wno-deprecated -Wall -Wextra -ftemplate-backtrace-limit=0 -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -fno-plt -Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now\n",
+      "install prefix: /usr\n",
+      "python dir: /usr/lib/python3.6/site-packages\n",
+      "graph filtering: True\n",
+      "openmp: True\n",
+      "uname: Linux asha 4.15.6-1-ARCH #1 SMP PREEMPT Sun Feb 25 12:53:23 UTC 2018 x86_64\n"
+     ]
+    }
+   ],
+   "source": [
+    "gt.show_config()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "# G = gt.load_graph_from_csv(\"data/usa_roads/usa_roads_ny.csv\", eprop_types=[\"int\"], eprop_names=[\"distance\"], string_vals=False)\n",
+    "# G.save(\"data/usa_roads/usa_roads_ny.gt\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "G = gt.load_graph(\"data/usa_roads/usa_roads_ny.gt\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "<Graph object, directed, with 264347 vertices and 733846 edges at 0x7fde8465c2b0>\n",
+      "distance       (edge)    (type: int32_t)\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(G)\n",
+    "G.list_properties()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "PropertyArray([ 803,  842, 2428, ..., 1158,  323,  368], dtype=int32)"
+      ]
+     },
+     "execution_count": 6,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "dist = G.ep.get(\"distance\")\n",
+    "dist.get_array()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "0.6327185812827214\n",
+      "464318\n"
+     ]
+    }
+   ],
+   "source": [
+    "filt = G.new_edge_property(\"bool\")\n",
+    "filt.a = dist.a > 800\n",
+    "print(filt.a.mean())\n",
+    "G.set_edge_filter(filt)\n",
+    "print(G.num_edges())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "PropertyArray([    1,     2,     3, ..., 34918, 36421, 36946], dtype=int32)"
+      ]
+     },
+     "execution_count": 8,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "ordered_dist = dist.get_array()\n",
+    "ordered_dist = np.unique(np.sort(ordered_dist))\n",
+    "ordered_dist"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "autoscroll": false,
+    "collapsed": false,
+    "ein.tags": "worksheet-0",
+    "slideshow": {
+     "slide_type": "-"
+    }
+   },
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.6.4"
+  },
+  "name": "usa_roads.ipynb"
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}