more files

Author: ewinnington

MsDataFrame.ipynb

@@ -0,0 +1,125 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "Installing package Microsoft.Data.Analysis...............................done!"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/html": [
+       "Successfully added reference to package Microsoft.Data.Analysis, version 0.2.0"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "#r \"nuget:Microsoft.Data.Analysis\"\n",
+    "using Microsoft.Data.Analysis;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "PrimitiveDataFrameColumn<DateTime> dateTimes = new PrimitiveDataFrameColumn<DateTime>(\"DateTimes\",3); // Default length is 0.\n",
+    "PrimitiveDataFrameColumn<int> ints = new PrimitiveDataFrameColumn<int>(\"Ints\", 3); // Makes a column of length 3. Filled with nulls initially\n",
+    "StringDataFrameColumn strings = new StringDataFrameColumn(\"Strings\", 3); // Makes a column of length 3. Filled with nulls initially\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "DataFrame df = new DataFrame(dateTimes, ints, strings);"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "using Microsoft.AspNetCore.Html;\n",
+    "Formatter<DataFrame>.Register((df, writer) =>\n",
+    "{\n",
+    "    var headers = new List<IHtmlContent>();\n",
+    "    headers.Add(th(i(\"index\")));\n",
+    "    headers.AddRange(df.Columns.Select(c => (IHtmlContent) th(c.Name)));\n",
+    "    var rows = new List<List<IHtmlContent>>();\n",
+    "    var take = 20;\n",
+    "    for (var i = 0; i < Math.Min(take, df.Rows.Count); i++)\n",
+    "    {\n",
+    "        var cells = new List<IHtmlContent>();\n",
+    "        cells.Add(td(i));\n",
+    "        foreach (var obj in df.Rows[i])\n",
+    "        {\n",
+    "            cells.Add(td(obj));\n",
+    "        }\n",
+    "        rows.Add(cells);\n",
+    "    }\n",
+    "\n",
+    "    var t = table(\n",
+    "        thead(\n",
+    "            headers),\n",
+    "        tbody(\n",
+    "            rows.Select(\n",
+    "                r => tr(r))));\n",
+    "\n",
+    "    writer.Write(t);\n",
+    "}, \"text/html\");"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<table><thead><th><i>index</i></th><th>DateTimes</th><th>Ints</th><th>Strings</th></thead><tbody><tr><td>0</td><td>&lt;null&gt;</td><td>&lt;null&gt;</td><td>&lt;null&gt;</td></tr><tr><td>1</td><td>&lt;null&gt;</td><td>&lt;null&gt;</td><td>&lt;null&gt;</td></tr><tr><td>2</td><td>&lt;null&gt;</td><td>&lt;null&gt;</td><td>&lt;null&gt;</td></tr></tbody></table>"
+      ]
+     },
+     "execution_count": 16,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": ".NET (C#)",
+   "language": "C#",
+   "name": ".net-csharp"
+  },
+  "language_info": {
+   "file_extension": ".cs",
+   "mimetype": "text/x-csharp",
+   "name": "C#",
+   "pygments_lexer": "csharp",
+   "version": "8.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}