cardillo/joinery: Data frames for Java

原作者: [db:作者] 来自: 网络收藏邀请

开源软件名称：

cardillo/joinery

开源软件地址：

https://github.com/cardillo/joinery

开源编程语言：

Java 98.4%

开源软件介绍：

joinery

joinery [joi-nuh-ree]: 1. In woodworking, the craft of joining together pieces of wood to produce more complex items.; 2. In Java, a data analysis library for joining together pieces of data to produce insight.

quick start

Remember FizzBuzz (of course you do!), well imagine you have just solved the puzzle (well done!) and you have written the results to a comma-delimited file for further analysis. Now you want to know how many times are the strings Fizz, Buzz, and FizzBuzz printed out.

You could answer this question any number of ways, for example you could modify the original program, or reach for Python/pandas, or even (for the sadistic among us, you know who you are) type out a one-liner at the command prompt (probably including cut, sort, and uniq).

Well, now you have one more option. This option is especially good if you are 1) using Java already and 2) may need to integrate your solution with other Java applications in the future.

You can answer this question with joinery.

df.groupBy("value")
  .count()
  .sortBy("-number")
  .head(3)

Printing out the resulting data frame gives us the following table.

  	   value 	number
 0	Fizz    	    27
 1	Buzz    	    14
 2	FizzBuzz	     6

See FizzBuzz.java for the complete code.

next steps

Get the executable jar and try it for yourself.

$ java -jar joinery-dataframe-1.10-jar-with-dependencies.jar shell
# Joinery -- Data frames for Java, 1.10-deb702e
# OpenJDK 64-Bit Server VM, Oracle Corporation, 1.8.0_92-internal
# Rhino 1.7 release 2 2009 03 22
> df = new DataFrame()
[empty data frame]
> df.add("value")
[empty data frame]
> [10, 20, 30].forEach(function(val) {
      df.append([val])
  })
> df
        value
 0	   10
 1	   20
 2	   30

>

maven

Since version 1.10, joinery is included in the central repo. If you are upgrading from a prior version, note the new group id.

<dependency>
  <groupId>sh.joinery</groupId>
  <artifactId>joinery-dataframe</artifactId>
  <version>1.10</version>
</dependency>

utilities

joinery includes some tools to make working with data frames easier. These tools are available by running joinery.DataFrame as an application.

$ java joinery.DataFrame
usage: joinery.DataFrame [compare|plot|show|shell] [csv-file ...]

show

Show displays the tabular data of a data frame in a gui window.

$ java joinery.DataFrame show data.csv

plot

Plot displays the numeric data of a data frame as a chart.

$ java joinery.DataFrame plot data.csv

shell

Launches an interactive JavaScript shell for working with data frames.

$ java joinery.DataFrame shell
# Joinery -- Data frames for Java, 1.10-deb702e
# OpenJDK 64-Bit Server VM, Oracle Corporation, 1.8.0_92-internal
# Rhino 1.7 release 2 2009 03 22
> df = DataFrame.readCsv("https://www.quandl.com/api/v1/datasets/GOOG/NASDAQ_AAPL.csv")
              Date	  Open	  High	   Low	        Close	             Volume
    0	2015-03-20	128.25	128.4	125.16	 125.90000000	  68695136.00000000
    1	2015-03-19	128.75	129.25	127.4	 127.50000000	  45809490.00000000
    2	2015-03-18	127.0	129.16	126.37	 128.47000000	  65270945.00000000
    3	2015-03-17	125.9	127.32	125.65	 127.04000000	  51023104.00000000
    4	2015-03-16	123.88	124.95	122.87	 124.95000000	  35874300.00000000
    5	2015-03-13	124.4	125.4	122.58	 123.59000000	  51827283.00000000
    6	2015-03-12	122.31	124.9	121.63	 124.45000000	  48362719.00000000
    7	2015-03-11	124.75	124.77	122.11	 122.24000000	  68938974.00000000
    8	2015-03-10	126.41	127.22	123.8	 124.51000000	  68856582.00000000

... 8649 rows skipped ...

 8658	1980-12-12	0.0	4.12	4.11	   4.11000000	  14657300.00000000

> df.types()
[class java.util.Date, class java.lang.String, class java.lang.String, class java.lang.String, class java.lang.Double, class java.lang.Double]
> df.sortBy("Date")
              Date     Open     High     Low            Close                Volume
 8658	1980-12-12	0.0	4.12	4.11	   4.11000000	  14657300.00000000
 8657	1980-12-15	0.0	3.91	3.89	   3.89000000	   5496400.00000000
 8656	1980-12-16	0.0	3.62	3.61	   3.61000000	   3304000.00000000
 8655	1980-12-17	0.0	3.71	3.7 	   3.70000000	   2701300.00000000
 8654	1980-12-18	0.0	3.82	3.8 	   3.80000000	   2295300.00000000
 8653	1980-12-19	0.0	4.05	4.04	   4.04000000	   1519700.00000000
 8652	1980-12-22	0.0	4.25	4.23	   4.23000000	   1167600.00000000
 8651	1980-12-23	0.0	4.43	4.41	   4.41000000	   1467200.00000000
 8650	1980-12-24	0.0	4.66	4.64	   4.64000000	   1500100.00000000

... 8649 rows skipped ...

    0	2015-03-20	128.25	128.4	125.16	 125.90000000	  68695136.00000000

> .reindex("Date")
	       Open	High	 Low	        Close	             Volume
1980-12-12	0.0	4.12	4.11	   4.11000000	  14657300.00000000
1980-12-15	0.0	3.91	3.89	   3.89000000	   5496400.00000000
1980-12-16	0.0	3.62	3.61	   3.61000000	   3304000.00000000
1980-12-17	0.0	3.71	3.7 	   3.70000000	   2701300.00000000
1980-12-18	0.0	3.82	3.8 	   3.80000000	   2295300.00000000
1980-12-19	0.0	4.05	4.04	   4.04000000	   1519700.00000000
1980-12-22	0.0	4.25	4.23	   4.23000000	   1167600.00000000
1980-12-23	0.0	4.43	4.41	   4.41000000	   1467200.00000000
1980-12-24	0.0	4.66	4.64	   4.64000000	   1500100.00000000

... 8649 rows skipped ...

2015-03-20	128.25	128.4	125.16	 125.90000000	  68695136.00000000

> .retain("Close")
	                Close
1980-12-12	   4.11000000
1980-12-15	   3.89000000
1980-12-16	   3.61000000
1980-12-17	   3.70000000
1980-12-18	   3.80000000
1980-12-19	   4.04000000
1980-12-22	   4.23000000
1980-12-23	   4.41000000
1980-12-24	   4.64000000

... 8649 rows skipped ...

2015-03-20	 125.90000000

> .plot(PlotType.AREA)

documentation

The complete api documentation for the DataFrame class is available at https://joinery.sh

鲜花

握手

雷人

路过

鸡蛋

该文章已有0人参与评论

请发表评论

全部评论

专题导读

More+

10-27 六六分期app的软件客服如何联系？(六六分期

11-06 可心卡盟:win10系统火狐flash插件崩溃怎么

11-06 亲亲特价:怎么删除回收站图标

11-06 济南大学虚拟社区:鲁大师节能降温的具体办

11-06 xlueops.exe:无线网络安装向导

11-06 女斗合众国:win7系统cf与主机连接不稳定怎

11-06 0xc000022-[cf烟雾头]cf怎么调烟雾头

11-06 qizideyouhuo:应用程序无法正常启动0xc0000

11-06 ipz-185:win7系统vcf文件怎么打开

11-06 傻哥蹦迪:win10系统s4怎么打开usb调试

11-06 八神浩树gtaste:回收站清空了怎么恢复

11-06 妖尾之黑色守护:win10系统电脑没有1440x900

11-06 校园至尊魔王小说:win7系统浏览网页时字体

11-06 女斗合众国:win10系统访问共享文件夹提示请

11-06 tokyo hot n0654:恢复win7系统默认字体一招

11-06 雨酷仙境:设置win7系统转移临时文件夹腾出

11-06 阿穆纳伊之杖:win7系统开始菜单在右边还原

11-06 tunespotting:win10系统火狐flash插件总是

11-06 甘尔葛分析师：计谋网站seo关键词暴涨有什

11-06 蔡贵霖: 计谋网站seo关键词暴涨有什么秘密

11-06 博益网首页:ao3网页版进入不了解决方法

11-06 漏斗子专栏: 网站数据分析小白易懂精华篇

11-06 见证双虹怎么做:win7系统开启telnet命令的

11-06 颾狐蝶蜋:系统资源不足无法完成请求的服务

11-06 国光中学校歌:提交网站到alexa查询详细步骤

11-06 西安有情天:静态网页和动态网页的区别

11-06 红木雅尚斋:外部链接构造对网站的好处

11-06 前官礼遇：防止域名劫持–增强域安全性的10

11-06 密传二转答案: 中文分词算法有哪些

11-06 金泉家园邮编:百度快照劫持的表现及应对方

asLody/legend: A framework for hook java methods.发布时间：2022-06-24

CSPF-Founder/JavaVulnerableLab: Vulnerable Java based Web Application发布时间：2022-06-24

剪的笔顺,诠释剪的笔画,认识剪的部首

1 六六分期app的软件客服如何联系？(六六分期

六六分期app的软件客服如何联系？不知道吗？加qq群【895510560】即可！标题：六六分期

阅读：18297|2023-10-27

2 可心卡盟:win10系统火狐flash插件崩溃怎么

今天小编告诉大家如何处理win10系统火狐flash插件总是崩溃的问题，可能很多用户都不知

阅读：9687|2022-11-06

3 亲亲特价:怎么删除回收站图标

今天小编告诉大家如何对win10系统删除桌面回收站图标进行设置，可能很多用户都不知道

阅读：8185|2022-11-06

4 济南大学虚拟社区:鲁大师节能降温的具体办

今天小编告诉大家如何对win10系统电脑设置节能降温的设置方法，想必大家都遇到过需要

阅读：8554|2022-11-06

5 xlueops.exe:无线网络安装向导

我们在使用xp系统的过程中,经常需要对xp系统无线网络安装向导设置进行设置，可能很多

阅读：8463|2022-11-06

6 女斗合众国:win7系统cf与主机连接不稳定怎

今天小编告诉大家如何处理win7系统玩cf老是与主机连接不稳定的问题，可能很多用户都不

阅读：9400|2022-11-06

7 0xc000022-[cf烟雾头]cf怎么调烟雾头

电脑对日常生活的重要性小编就不多说了，可是一旦碰到win7系统设置cf烟雾头的问题，很

阅读：8435|2022-11-06

8 qizideyouhuo:应用程序无法正常启动0xc0000

我们在日常使用电脑的时候，有的小伙伴们可能在打开应用的时候会遇见提示应用程序无法

阅读：7869|2022-11-06

9 ipz-185:win7系统vcf文件怎么打开

今天小编告诉大家如何对win7系统打开vcf文件进行设置，可能很多用户都不知道怎么对win

阅读：8420|2022-11-06

10 傻哥蹦迪:win10系统s4怎么打开usb调试

今天小编告诉大家如何对win10系统s4开启USB调试模式进行设置，可能很多用户都不知道怎

阅读：7398|2022-11-06

客服电话

电子邮件

cardillo/joinery: Data frames for Java

开源软件名称：

开源软件地址：

开源编程语言：

开源软件介绍：

joinery

quick start

next steps

maven

utilities

show

plot

shell

documentation

请发表评论

全部评论

上一篇：

下一篇：

CVE-2022-34029

kojino/Harvard-Robust-Machine-Learning:

cescoffier/puppet-nexus: A Puppet Module

文的笔顺,诠释文的笔画,解读文的部首

Cassolotl/sentient.cloud · GitHub

剪的笔顺,诠释剪的笔画,认识剪的部首

六六分期app的软件客服如何联系？(六六分期

florent37/ViewAnimator: A fluent Android

florent37/Shrine-MaterialDesign2: implem

CVE-2020-36276

SimpleSoftwareIO/simple-sms: Send and re

关于我们

产品与服务

解决方案

139-2527-9053