【发布时间】：2023-04-01 19:42:01
【问题描述】：
我无法将 FBI 犯罪数据与学区联系起来。
在同一州有一些城市/城镇名称相同，因此给出县作为分隔这些值的一种方式。对于 2003-2017 年，大约有 1700 个值也有县。但是，当我尝试将此数据集与另一个学区数据集连接时，有限值连接（如果我内部连接，我将从 1700 中得到 200）。在这个论坛上，有另一个问题（Issues with Character Values），其他成员帮助我解决了空格问题，但奇怪的是，这对加入数据集没有帮助。以下是宾夕法尼亚州亚当斯县的犯罪数据和学区数据。
一个简单的 left_join 应该可以工作，但你会发现我没有得到任何区域值。 Inner_join 产生零行，因此数据中存在一些无法识别的问题。 STATE、COUNTY 和 CITY 都是字符，年份是数字。这些是连接两列的变量。
我尝试修剪所有分类变量周围的空白。没有骰子。
根据经验，我通过 District_ids、place_ids 等加入，但 FBI 犯罪数据很笨重，而且没有任何这些数据，所以它是绝对的。
犯罪数据
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"conewago", "cumberland", "liberty", "conewago", "liberty", "conewago",
"cumberland", "liberty", "conewago", "cumberland", "liberty",
"conewago", "cumberland", "liberty", "conewago", "cumberland",
"conewago", "cumberland", "conewago", "cumberland", "conewago",
"cumberland", "conewago", "cumberland", "liberty", "conewago",
"cumberland"), COUNTY = c("adams county", "adams county", "adams county",
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"adams county", "adams county", "adams county", "adams county",
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"adams county", "adams county", "adams county", "adams county",
"adams county", "adams county", "adams county", "adams county",
"adams county", "adams county", "adams county"), STATE = c("pennsylvania",
"pennsylvania", "pennsylvania", "pennsylvania", "pennsylvania",
"pennsylvania", "pennsylvania", "pennsylvania", "pennsylvania",
"pennsylvania", "pennsylvania", "pennsylvania", "pennsylvania",
"pennsylvania", "pennsylvania", "pennsylvania", "pennsylvania",
"pennsylvania", "pennsylvania", "pennsylvania", "pennsylvania",
"pennsylvania", "pennsylvania", "pennsylvania", "pennsylvania",
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2013, 2013, 2014, 2014, 2015, 2015, 2016, 2016, 2017, 2017, 2017,
2003, 2003)), class = c("tbl_df", "tbl", "data.frame"), row.names = c(NA,
-30L))
地区数据
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2008, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009,
2009, 2009, 2009, 2009, 2010, 2010, 2010, 2010, 2010, 2010, 2010,
2010, 2010, 2010, 2010, 2010, 2010, 2010, 2011, 2011, 2011, 2011,
2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2012,
2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012,
2012, 2012, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013,
2013, 2013, 2013, 2013, 2013, 2014, 2014, 2014, 2014, 2014, 2014,
2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2015, 2015, 2015,
2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015,
2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016,
2016, 2016, 2016, 2017, 2017, 2017, 2017, 2017, 2017, 2017, 2017,
2017, 2017, 2017, 2017, 2017, 2017, 2003, 2003, 2003, 2003, 2003,
2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003,
2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004,
2004, 2004, 2004, 2004, 2004, 2005, 2005, 2005, 2005, 2005, 2005,
2005, 2005, 2005, 2005, 2005, 2005, 2005, 2005, 2005, 2005, 2006,
2006, 2006, 2006, 2006, 2006, 2006, 2006, 2006, 2006, 2006, 2006,
2006, 2006, 2006, 2006, 2007, 2007, 2007, 2007, 2007, 2007, 2007,
2007, 2007, 2007, 2007, 2007, 2007, 2007, 2007, 2007, 2008, 2008,
2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008,
2008, 2008, 2008, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009,
2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2010, 2010, 2010,
2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010,
2010, 2010, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011,
2011, 2011, 2011, 2011, 2011, 2011, 2011, 2012, 2012, 2012, 2012,
2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012,
2012, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013,
2013, 2013, 2013, 2013, 2013, 2013, 2014, 2014, 2014, 2014, 2014,
2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014,
2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015,
2015, 2015, 2015, 2015, 2015, 2016, 2016, 2016, 2016, 2016, 2016,
2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 2017,
2017, 2017, 2017, 2017, 2017, 2017, 2017, 2017, 2017, 2017, 2017,
2017, 2017, 2017, 2017)), class = c("spec_tbl_df", "tbl_df",
"tbl", "data.frame"), row.names = c(NA, -450L))
【问题讨论】：
-
请在代码问题中给出一个最小的可重现示例——剪切&粘贴&可运行代码；具有期望和实际输出的示例输入（包括逐字错误消息）；标签和版本；明确的规范和解释。这包括您可以提供的最少代码，即您显示的代码可以通过您显示的代码扩展为不可以。 （调试基础。）文本请使用文本，而不是图像/链接。从其他地方引用/解释必要的文本并说出它与您的问题的关系。使您的帖子自成一体。 PS 这不是“最小”的代表性输入。