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July 25, 2016 13:18
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Demo data of products
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| id | name | type | class | released | |
|---|---|---|---|---|---|
| T01 | SupCar | toy | vehicle | yes | |
| T02 | SupPlane | toy | vehicle | no | |
| M01 | JeepX | model | vehicle | yes | |
| M02 | AircraftX | model | vehicle | yes | |
| M03 | Runner | model | people | yes | |
| M04 | Dancer | model | people | no |
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| id | material | size | weight | |
|---|---|---|---|---|
| T01 | Metal | 120 | 10 | |
| T02 | Metal | 350 | 45 | |
| M01 | Plastics | 50 | NA | |
| M02 | Plastics | 85 | 3 | |
| M03 | Wood | 15 | NA | |
| M04 | Wood | 16 | 0.6 |
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| id | quality | durability | waterproof | |
|---|---|---|---|---|
| T01 | 10 | no | ||
| T02 | 10 | 9 | no | |
| M01 | 6 | 4 | yes | |
| M02 | 6 | 5 | yes | |
| M03 | 5 | yes | ||
| M04 | 6 | 6 | yes |
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| id | date | sample | quality | durability | |
|---|---|---|---|---|---|
| T01 | 20160201 | 100 | 9 | 9 | |
| T01 | 20160302 | 150 | 10 | 9 | |
| T01 | 20160405 | 180 | 9 | 10 | |
| T01 | 20160502 | 140 | 9 | 9 | |
| T02 | 20160201 | 70 | 7 | 9 | |
| T02 | 20160303 | 75 | 8 | 8 | |
| T02 | 20160403 | 90 | 9 | 8 | |
| T02 | 20160502 | 85 | 10 | 9 |
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终于找到书上的书籍来源了~~找了好久啊。我买的《R语言编程指南》中文版本和网上找英文版本你都没有说明从第12章开始使用的数据来源在哪里，下个版本记得更新一下啊~
谢谢你写的书，很好的一本R语言书！