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bdeng-xtihnorton
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add example notebooks (#38)
* add example notebooks for dense array and metadata * add README * rename metadata example to array_metadata * add group example
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‎notebooks/README.md

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# This directory contains .net interactive notebook demos
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## Suggested extensions for VS Code
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1. C# by Microsoft
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2. .NET Interactive Notebooks by Microsoft
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3. C# Extensions by JosKreativ
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4. NuGet Package Manager by jmrog
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## Add TileDB.CSharp in notebook
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```
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#r "nuget:TileDB.CSharp"
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```

‎notebooks/array_metadata.ipynb

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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Install TileDB.CSharp"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"#r \"nuget:TileDB.CSharp\""
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Create an array"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"using TileDB.CSharp;\n",
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"var ctx = TileDB.CSharp.Context.GetDefault();\n",
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"var dom = new TileDB.CSharp.Domain(ctx);\n",
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"var dim1 = TileDB.CSharp.Dimension.Create<int>(ctx,\"rows\",1,4,4);\n",
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"var dim2 = TileDB.CSharp.Dimension.Create<int>(ctx,\"cols\",1,4,4);\n",
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"dom.AddDimension(dim1);\n",
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"dom.AddDimension(dim2);\n",
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"var schema = new TileDB.CSharp.ArraySchema(ctx,TileDB.CSharp.ArrayType.TILEDB_DENSE);\n",
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"schema.SetDomain(dom);\n",
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"var attr1 = new TileDB.CSharp.Attribute(ctx,\"a\",TileDB.CSharp.DataType.TILEDB_INT32);\n",
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"schema.AddAttribute(attr1);\n",
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"string array_uri = \"test_metadata_array\";\n",
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"var vfs = new TileDB.CSharp.VFS(ctx);\n",
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"if(vfs.IsDir(array_uri))\n",
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"{\n",
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" vfs.RemoveDir(array_uri);\n",
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"}\n",
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"TileDB.CSharp.Array.Create(ctx,array_uri,schema);"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Add metadata"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"using(var array_write = new TileDB.CSharp.Array(ctx,array_uri)) \n",
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"{\n",
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" array_write.Open(TileDB.CSharp.QueryType.TILEDB_WRITE);\n",
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" var int_metadata = new int[2] {1,100};\n",
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" array_write.PutMetadata<int>(\"int_metadata\",int_metadata);\n",
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" var double_metadata = new double[3] {1.0,100.0,1000.0};\n",
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" array_write.PutMetadata<double>(\"double_metadata\", double_metadata);\n",
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" array_write.PutMetadata(\"key1\",\"value1\");\n",
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" array_write.PutMetadata(\"key2\",\"value2\");\n",
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" array_write.PutMetadata(\"key3\",\"value3\");\n",
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" array_write.Close();\n",
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"}"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Get metadata"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"var array_read = new TileDB.CSharp.Array(ctx,array_uri);\n",
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"array_read.Open(TileDB.CSharp.QueryType.TILEDB_READ);"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Get metadata from index"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"var metadata_num = array_read.MetadataNum();\n",
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"System.Console.WriteLine(\"number of metadata:{0}\",metadata_num);"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"var metadata_keys = array_read.MetadataKeys();\n",
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"System.Console.WriteLine(\"metadata keys:{0}\", String.Join(\" \", metadata_keys));"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"var (key0,data0) = array_read.GetMetadataFromIndex<double>(0);\n",
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"System.Console.WriteLine(\"key0:{0},data0:{1}\", key0, String.Join(\" \",data0));"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Get metadata from key"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"var int_metadata = array_read.GetMetadata<int>(\"int_metadata\");\n",
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"System.Console.WriteLine(\"int_metadata:{0}\", String.Join(\" \", int_metadata));"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"var double_metadata = array_read.GetMetadata<double>(\"double_metadata\");\n",
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"System.Console.WriteLine(\"double_metadata:{0}\", String.Join(\" \", double_metadata));"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"var value3 = array_read.GetMetadata(\"key3\");\n",
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"System.Console.WriteLine(\"value3:{0}\", value3);"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"array_read.Close();"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Clean up"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"dotnet_interactive": {
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"language": "csharp"
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}
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},
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"outputs": [],
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"source": [
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"if(vfs.IsDir(array_uri))\n",
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"{\n",
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" vfs.RemoveDir(array_uri);\n",
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"}"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": ".NET (C#)",
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"language": "C#",
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"name": ".net-csharp"
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},
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"language_info": {
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"file_extension": ".cs",
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"mimetype": "text/x-csharp",
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"name": "C#",
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"pygments_lexer": "csharp",
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"version": "9.0"
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},
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"orig_nbformat": 2
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}

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