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* first draft of get started page * add resource * first review comments --------- Co-authored-by: Sarah Haggarty <[email protected]>
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<?xml version="1.0" encoding="UTF-8"?> | ||
<!DOCTYPE resources SYSTEM "https://helpserver.labs.jb.gg/help/schemas/mvp/resources.dtd"> | ||
<resources> | ||
<resource id="movie-sample-data" file="movies.csv"/> | ||
</resources> |
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movieId,title,genres | ||
9b30aff7943f44579e92c261f3adc193,Women in Black (1997),Fantasy|Suspenseful|Comedy | ||
2a1ba1fc5caf492a80188e032995843e,Bumblebee Movie (2007),Comedy|Jazz|Family|Animation | ||
f44ceb4771504342bb856d76c112d5a6,Magical School Boy and the Rock of Wise Men (2001),Fantasy|Growing up|Magic | ||
43d02fb064514ff3bd30d1e3a7398357,Master of the Jewlery: The Company of the Jewel (2001),Fantasy|Magic|Suspenseful | ||
6aa0d26a483148998c250b9c80ddf550,Sun Conflicts: Part IV: A Novel Espair (1977),Fantasy | ||
eace16e59ce24eff90bf8924eb6a926c,The Outstanding Bulk (2008),Fantasy|Superhero|Family | ||
ae916bc4844a4bb7b42b70d9573d05cd,In Automata (2014),Horror|Existential | ||
c1f0a868aeb44c5ea8d154ec3ca295ac,Interplanetary (2014),Sci-fi|Futuristic | ||
9595b771f87f42a3b8dd07d91e7cb328,Woods Run (1994),Family|Drama | ||
aa9fc400e068443488b259ea0802a975,Anthropod-Dude (2002),Superhero|Fantasy|Family|Growing up | ||
22d20c2ba11d44cab83aceea39dc00bd,The Chamber (2003),Comedy|Drama | ||
8cf4d0c1bd7b41fab6af9d92c892141f,That Thing About an Iceberg (1997),Drama|History|Family|Romance | ||
c2f3e7588da84684a7d78d6bd8d8e1f4,Vehicles (2006),Animation|Family | ||
ce06175106af4105945f245161eac3c7,Playthings Tale (1995),Animation|Family | ||
ee28d7e69103485c83e10b8055ef15fb,Metal Man 2 (2010),Fantasy|Superhero|Family | ||
c32bdeed466f4ec09de828bb4b6fc649,Surgeon Odd in the Omniverse of Crazy (2022),Fantasy|Superhero|Family|Horror | ||
d4a325ab648a42c4a2d6f35dfabb387f,Bad Dream on Pine Street (1984),Horror | ||
60ebe74947234ddcab49dea1a958faed,The Shimmering (1980),Horror | ||
f24327f2b05147b197ca34bf13ae3524,Krubit: Societal Teachings for Do Many Good Amazing Country of Uzbekistan (2006),Comedy | ||
2bb29b3a245e434fa80542e711fd2cee,This is No Movie (1950),(no genres listed) |
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[//]: # (title: Getting started) | ||
[//]: # (title: Get started with Kotlin DataFrame) | ||
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The Kotlin DataFrame library is a JVM Kotlin library for in-memory data manipulation. | ||
The Kotlin DataFrame library gives you the power to manipulate data in your Kotlin projects. | ||
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![getting started image](gettingStarted.png) | ||
This page explains how to: | ||
* Set up the Kotlin DataFrame library in an IntelliJ IDEA project with Gradle. | ||
* Import and manipulate data. | ||
* Export data. | ||
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## Installation | ||
First, pick up the latest version of the Kotlin DataFrame library [here](https://search.maven.org/artifact/org.jetbrains.kotlinx/dataframe). | ||
* If you wish to play with data in interactive mode, setup [Kotlin Kernel for Jupyter](installation.md#jupyter-notebook) and run DataFrame there | ||
* If you have some JVM project, just add a dependency on the Kotlin DataFrame library like it's described on [Maven Central search](https://search.maven.org/artifact/org.jetbrains.kotlinx/dataframe) site | ||
To use the Kotlin DataFrame library with Jupyter notebooks or Datalore, follow the instructions on our [Installation page](installation.md). | ||
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## Examples | ||
Hope that this documentation will help you to implement all the things you want to do with your data. To get inspiration, take a look at [examples](https://github.com/Kotlin/dataframe/tree/master/examples) folder. [Puzzles](https://github.com/Kotlin/dataframe/blob/master/examples/jupyter-notebooks/puzzles/40%20puzzles.ipynb) will quickly familiarize you with the power of DataFrame, and other notebooks and projects will show you some applications of DataFrame in practical data analysis. | ||
## Install Kotlin | ||
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## Feedback and contributing | ||
If you found a bug, or have an idea for a new feature, please [file an issue](https://github.com/Kotlin/dataframe/issues/new) in DataFrame GitHub repository. | ||
Kotlin is included in each IntelliJ IDEA release. | ||
Download and install [IntelliJ IDEA](https://www.jetbrains.com/idea/download/) to start using Kotlin. | ||
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If you wish to contribute, you're welcome! Choose an issue you like, let us know that you're working on it, and prepare a [pull request](https://github.com/Kotlin/dataframe/pulls). We'll review and merge it if everything goes well. | ||
## Create Kotlin project | ||
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You can also give us feedback or ask a question in [#datascience](https://kotlinlang.slack.com/archives/C4W52CFEZ) channel of a Kotlin Slack. | ||
1. In IntelliJ IDEA, select **File** | **New** | **Project**. | ||
2. In the panel on the left, select **New Project**. | ||
3. Name the new project and change its location, if necessary. | ||
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Good luck! | ||
> Select the **Create Git repository** checkbox to place the new project under version control. You can enable this | ||
> later at any time. | ||
> | ||
{type="tip"} | ||
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4. From the **Language** list, select **Kotlin**. | ||
5. Select the **Gradle** build system. | ||
6. From the **JDK list**, select the [JDK](https://www.oracle.com/java/technologies/downloads/) that you want to use in | ||
your project. The minimum supported version is JDK 8. | ||
* If the JDK is installed on your computer, but not defined in the IDE, select **Add JDK** and specify the path to the | ||
JDK home directory. | ||
* If you don't have the necessary JDK on your computer, select **Download JDK**. | ||
7. From the **Gradle DSL** list, select **Kotlin** or **Groovy**. | ||
8. Select the **Add sample code** checkbox to create a file with a sample `"Hello World!"` application. | ||
9. Click **Create**. | ||
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You have successfully created a project with Gradle. | ||
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### Update Gradle dependencies | ||
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In your Gradle build file (`build.gradle.kts`), add the Kotlin DataFrame library as a dependency: | ||
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<tabs> | ||
<tab title="Kotlin DSL"> | ||
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```kotlin | ||
dependencies { | ||
implementation("org.jetbrains.kotlinx:dataframe:%dataFrameVersion%") | ||
} | ||
``` | ||
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</tab> | ||
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<tab title="Groovy DSL"> | ||
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```kotlin | ||
dependencies { | ||
implementation 'org.jetbrains.kotlinx:dataframe:%dataFrameVersion%' | ||
} | ||
``` | ||
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</tab> | ||
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</tabs> | ||
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### Add imports | ||
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In `src/main/kotlin/Main.kt`, add the following imports at the top of the file: | ||
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```kotlin | ||
import org.jetbrains.kotlinx.dataframe.DataFrame | ||
import org.jetbrains.kotlinx.dataframe.io.* | ||
import org.jetbrains.kotlinx.dataframe.api.* | ||
``` | ||
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## Import data | ||
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Download and save our file to the root directory of your project: | ||
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<res resource-id="movie-sample-data"/> | ||
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Delete the `println()` functions and comments from your main function in `Main.kt`. | ||
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To import the movie sample data into a data frame and print it, inside your main function in `Main.kt`, add the following code: | ||
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```kotlin | ||
// Import your data to a data frame | ||
var df = DataFrame.read("movies.csv") | ||
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// Print your data frame | ||
df.print() | ||
``` | ||
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## Manipulate data | ||
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To print some information about your data frame and sort your data, add the following additional lines of code: | ||
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```kotlin | ||
// Print some information about the data frame | ||
println(df.columnNames()) // Print column names | ||
println(df.count()) // Print number of rows | ||
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// Sort your data alphabetically by title | ||
df = df.sortBy("title") | ||
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// Filter your data so that only comedy films remain, and print | ||
df = df.filter { "genres"<String>().contains("Comedy") } | ||
df.print() | ||
``` | ||
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## Export data | ||
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To export the current version of your data frame in CSV format, add the following additional lines of code and run `Main.kt`. | ||
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```kotlin | ||
// Export your manipulated data to CSV format | ||
df.writeCSV("movies-by-title.csv") | ||
``` | ||
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<code-block lang="console" collapsed-title="Example terminal output" collapsible="true"> | ||
movieId title genres | ||
0 9b30aff7943f44579e92c261f3adc193 Women in Black (1997) Fantasy|Suspenseful|Comedy | ||
1 2a1ba1fc5caf492a80188e032995843e Bumblebee Movie (2007) Comedy|Jazz|Family|Animation | ||
2 f44ceb4771504342bb856d76c112d5a6 Magical School Boy and the Rock of Wi... Fantasy|Growing up|Magic | ||
3 43d02fb064514ff3bd30d1e3a7398357 Master of the Jewlery: The Company of... Fantasy|Magic|Suspenseful | ||
4 6aa0d26a483148998c250b9c80ddf550 Sun Conflicts: Part IV: A Novel Espai... Fantasy | ||
5 eace16e59ce24eff90bf8924eb6a926c The Outstanding Bulk (2008) Fantasy|Superhero|Family | ||
6 ae916bc4844a4bb7b42b70d9573d05cd In Automata (2014) Horror|Existential | ||
7 c1f0a868aeb44c5ea8d154ec3ca295ac Interplanetary (2014) Sci-fi|Futuristic | ||
8 9595b771f87f42a3b8dd07d91e7cb328 Woods Run (1994) Family|Drama | ||
9 aa9fc400e068443488b259ea0802a975 Anthropod-Dude (2002) Superhero|Fantasy|Family|Growing up | ||
10 22d20c2ba11d44cab83aceea39dc00bd The Chamber (2003) Comedy|Drama | ||
11 8cf4d0c1bd7b41fab6af9d92c892141f That Thing About an Iceberg (1997) Drama|History|Family|Romance | ||
12 c2f3e7588da84684a7d78d6bd8d8e1f4 Vehicles (2006) Animation|Family | ||
13 ce06175106af4105945f245161eac3c7 Playthings Tale (1995) Animation|Family | ||
14 ee28d7e69103485c83e10b8055ef15fb Metal Man 2 (2010) Fantasy|Superhero|Family | ||
15 c32bdeed466f4ec09de828bb4b6fc649 Surgeon Odd in the Omniverse of Crazy... Fantasy|Superhero|Family|Horror | ||
16 d4a325ab648a42c4a2d6f35dfabb387f Bad Dream on Pine Street (1984) Horror | ||
17 60ebe74947234ddcab49dea1a958faed The Shimmering (1980) Horror | ||
18 f24327f2b05147b197ca34bf13ae3524 Krubit: Societal Teachings for Do Man... Comedy | ||
19 2bb29b3a245e434fa80542e711fd2cee This is No Movie (1950) (no genres listed) | ||
[movieId, title, genres] | ||
20 | ||
movieId title genres | ||
0 2a1ba1fc5caf492a80188e032995843e Bumblebee Movie (2007) Comedy|Jazz|Family|Animation | ||
1 f24327f2b05147b197ca34bf13ae3524 Krubit: Societal Teachings for Do Man... Comedy | ||
2 22d20c2ba11d44cab83aceea39dc00bd The Chamber (2003) Comedy|Drama | ||
3 9b30aff7943f44579e92c261f3adc193 Women in Black (1997) Fantasy|Suspenseful|Comedy | ||
</code-block> | ||
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Congratulations! You have successfully used the Kotlin DataFrame library to import, manipulate and export data. | ||
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## Next steps | ||
* Learn more about how to [import and export data](io.md) | ||
* Learn about our different [access APIs](apiLevels.md) | ||
* Explore the many different [operations that you can perform](operations.md) |
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@@ -1,5 +1,5 @@ | ||
<?xml version="1.0" encoding="UTF-8"?> | ||
<!DOCTYPE vars SYSTEM "https://helpserver.labs.jb.gg/help/schemas/mvp/vars.dtd"> | ||
<vars> | ||
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<var name="dataFrameVersion" value="0.9.1" type="string"/> | ||
</vars> |