你好，我这里有一些关于国家人口等的统计数据:
## [1] "China 1439323776 0.39 5540090 153 9388211 -348399 1.7 38 61 18.47 2 "
## [2] "India 1380004385 0.99 13586631 464 2973190 -532687 2.2 28 35 17.70 3 "
## [3] "United States 331002651 0.59 1937734 36 9147420 954806 1.8 38 83 4.25 4 "
## [4] "Indonesia 273523615 1.07 2898047 151 1811570 -98955 2.3 30 56 3.51 5 "
## [5] "Pakistan 220892340 2.00 4327022 287 770880 -233379 3.6 23 35 2.83 6 "
## [6] "Brazil 212559417 0.72 1509890 25 8358140 21200 1.7 33 88 2.73 7 "
## [7] "Nigeria 206139589 2.58 5175990 226 910770 -60000 5.4 18 52 2.64 8 "
## [8] "Bangladesh 164689383 1.01 1643222 1265 130170 -369501 2.1 28 39 2.11 9 "
## [9] "Russia 145934462 0.04 62206 9 16376870 182456 1.8 40 74 1.87 10 "
## [10] "Mexico 128932753 1.06 1357224 66 1943950 -60000 2.1 29 84 1.65 11 "
## [11] "Japan 126476461 -0.30 -383840 347 364555 71560 1.4 48 92 1.62 12 "
但是最后一个是这样的:
## [235] "Holy See 801 0.25 2 2003 0 N.A. N.A. N.A. 0.00 </tr> </tbody></table><br><div class="source-tableSource: <strong>Worldometer</strong> (<a href="/www.Worldometers.info</a>) <div class="source-table-elabElaboration of data by United Nations Department of Economic and Social Affairs Population Division. <a href="https://esa.un.org/unpd/wpp/World Population Prospects: The 2019 Revision</a>. (Medium-fertility variant).</div></div></div> <div align="center" id="worldometers_728x90_970x90_BTF<script data-cfasync="false" type="text/javascript freestar.config.enabled_slots.push({ placementName: "worldometers_728x90_970x90_BTF" slotId: "worldometers_728x90_970x90_BTF" });</script></div></div></div></div><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js</script><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-3701697624350410" data-ad-slot="6995709761" data-ad-format="auto" data-full-width-responsive="true</ins><script> (adsbygoogle = window.adsbygoogle || []).push({});</script><div style="margin-top:40px</div><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js</script><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-3701697624350410" data-ad-slot="1743383089" data-ad-format="auto" data-full-width-responsive="true</ins><script> (adsbygoogle = window.adsbygoogle || []).push({});</script></div> <footer><div class="footerlinks<div style="margin-bottom:20px<a href="/<img src="/img/worldometers-logo-footer.png" border="0" class="img-footer</a></div><a href="/about/about</a> | <a href="/faq/faq</a> | <a href="/languages/languages</a> | <a href="/contact/contact</a></div><ul class="list-inline text-center socialbuttons<li><a href="/newsletter-subscribe/" data-toggle="tooltip" data-placement="bottom" title="Newsletter<i class="fa fa-bullhorn fa-round</i></a></li> <li><a href="https://twitter.com/Worldometers<i class="fa fa-twitter fa-round</i></a></li> <li><a href="https://www.facebook.com/Worldometers.info<i class="fa fa-facebook fa-round</i></a></li></ul> <div class="copy© Copyright Worldometers.info - All rights reserved - <a href="/disclaimer/Disclaimer & Privacy Policy</a></div></footer><script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-54615fa823b2af68" async="async</script> <script type="text/javascript (function() { function async_load(script_url){ var protocol = ('https:' == document.location.protocol ? 'https://' : 'http://'); var s = document.createElement('script'); s.src = protocol + script_url; var x = document.getElementsByTagName('script')[0]; x.parentNode.insertBefore(s x); } bm_website_code = '7849CD9451D34931'; jQuery(document).ready(function(){async_load('asset.pagefair.com/measure.min.js')}); jQuery(document).ready(function(){async_load('asset.pagefair.net/ads.min.js')}); })();</script> <script type="text/javascriptvar _qevents = _qevents || "
我想去掉0.00之后的所有字母和东西。我该怎么做呢?蒂娅!
我们可以用base R中的trimws
trimws(str1, whitespace = "\s+\</.*")
[1] "Holy See 801 0.25 2 2003 0 N.A. N.A. N.A. 0.00"
str1 <- "Holy See 801 0.25 2 2003 0 N.A. N.A. N.A. 0.00 </tr> </tbody></table><br><div class="source-tableSource: <strong>Worldometer</strong> (<a href="/www.Worldometers.info</a>) <div class="source-table-elabElaboration of data by United Nations Department of Economic and Social Affairs Population Division. <a href="https://esa.un.org/unpd/wpp/World Population Prospects: The 2019 Revision</a>. (Medium-fertility variant).</div></div></div> <div align="center" id="worldometers_728x90_970x90_BTF<script data-cfasync="false" type="text/javascript freestar.config.enabled_slots.push({ placementName: "worldometers_728x90_970x90_BTF" slotId: "worldometers_728x90_970x90_BTF" });</script></div></div></div></div><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js</script><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-3701697624350410" data-ad-slot="6995709761" data-ad-format="auto" data-full-width-responsive="true</ins><script> (adsbygoogle = window.adsbygoogle || []).push({});</script><div style="margin-top:40px</div><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js</script><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-3701697624350410" data-ad-slot="1743383089" data-ad-format="auto" data-full-width-responsive="true</ins><script> (adsbygoogle = window.adsbygoogle || []).push({});</script></div> <footer><div class="footerlinks<div style="margin-bottom:20px<a href="/<img src="/img/worldometers-logo-footer.png" border="0" class="img-footer</a></div><a href="/about/about</a> | <a href="/faq/faq</a> | <a href="/languages/languages</a> | <a href="/contact/contact</a></div><ul class="list-inline text-center socialbuttons<li><a href="/newsletter-subscribe/" data-toggle="tooltip" data-placement="bottom" title="Newsletter<i class="fa fa-bullhorn fa-round</i></a></li> <li><a href="https://twitter.com/Worldometers<i class="fa fa-twitter fa-round</i></a></li> <li><a href="https://www.facebook.com/Worldometers.info<i class="fa fa-facebook fa-round</i></a></li></ul> <div class="copy© Copyright Worldometers.info - All rights reserved - <a href="/disclaimer/Disclaimer & Privacy Policy</a></div></footer><script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-54615fa823b2af68" async="async</script> <script type="text/javascript (function() { function async_load(script_url){ var protocol = ('https:' == document.location.protocol ? 'https://' : 'http://'); var s = document.createElement('script'); s.src = protocol + script_url; var x = document.getElementsByTagName('script')[0]; x.parentNode.insertBefore(s x); } bm_website_code = '7849CD9451D34931'; jQuery(document).ready(function(){async_load('asset.pagefair.com/measure.min.js')}); jQuery(document).ready(function(){async_load('asset.pagefair.net/ads.min.js')}); })();</script> <script type="text/javascriptvar _qevents = _qevents || "
我们可以使用stringr::str_remove:
library(stringr)
str1 %>% str_remove('(?<=0\.00).*')