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	<title>
	Comments on: Select Data Frame Columns in R	</title>
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	<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/</link>
	<description>Data Mining and Statistics for Decision Support</description>
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	<item>
		<title>
		By: Sathira		</title>
		<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-22028</link>

		<dc:creator><![CDATA[Sathira]]></dc:creator>
		<pubDate>Sun, 23 May 2021 15:12:24 +0000</pubDate>
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					<description><![CDATA[Thanks !!!]]></description>
			<content:encoded><![CDATA[<p>Thanks !!!</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: kassambara		</title>
		<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-19816</link>

		<dc:creator><![CDATA[kassambara]]></dc:creator>
		<pubDate>Mon, 11 May 2020 10:55:07 +0000</pubDate>
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					<description><![CDATA[In reply to &lt;a href=&quot;https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-19812&quot;&gt;Fiona&lt;/a&gt;.

Did this work?

iris %&gt;% dplyr::pull(Species)]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-19812">Fiona</a>.</p>
<p>Did this work?</p>
<p>iris %>% dplyr::pull(Species)</p>
]]></content:encoded>
		
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		<item>
		<title>
		By: Fiona		</title>
		<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-19812</link>

		<dc:creator><![CDATA[Fiona]]></dc:creator>
		<pubDate>Mon, 11 May 2020 06:38:00 +0000</pubDate>
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					<description><![CDATA[Hello, I tried the pull method on a column in my dataframe but received the following error message:

Error in UseMethod(&quot;pull&quot;) : 
  no applicable method for &#039;pull&#039; applied to an object of class &quot;factor&quot;

Is there anything I can do to fix this?]]></description>
			<content:encoded><![CDATA[<p>Hello, I tried the pull method on a column in my dataframe but received the following error message:</p>
<p>Error in UseMethod(&#8220;pull&#8221;) :<br />
  no applicable method for &#8216;pull&#8217; applied to an object of class &#8220;factor&#8221;</p>
<p>Is there anything I can do to fix this?</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: MadDeveloper		</title>
		<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-11279</link>

		<dc:creator><![CDATA[MadDeveloper]]></dc:creator>
		<pubDate>Fri, 17 Apr 2020 08:58:14 +0000</pubDate>
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					<description><![CDATA[very helpful. Thanks a lot!!!]]></description>
			<content:encoded><![CDATA[<p>very helpful. Thanks a lot!!!</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: Monhieq		</title>
		<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-1711</link>

		<dc:creator><![CDATA[Monhieq]]></dc:creator>
		<pubDate>Thu, 21 Feb 2019 03:47:51 +0000</pubDate>
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					<description><![CDATA[thank you for your sharing

i am beginner in R. i have some questions.
how combine multi table ( i used .csv) to be one, because i saw that from those tables (8 tables) the field name is all same, but the file name is different.
can you help me how to combine those tables and add 1 field from each table (field name is Value) and added field name change to the table name?

e.g : number of table : 8 (T1 - T8)
number of field in every table = 10 (F1 - F10). F1 - F9 in T1 - T10 fill with the same data value
Data value of F10 is the only field that filled different value in every tables
How to combine (T9 ) with F1-F9, and add F10-F17 named as the tables name and will fills with the value of F10 in every tables?

I hope you can help and give your response to me.  Thank you so much]]></description>
			<content:encoded><![CDATA[<p>thank you for your sharing</p>
<p>i am beginner in R. i have some questions.<br />
how combine multi table ( i used .csv) to be one, because i saw that from those tables (8 tables) the field name is all same, but the file name is different.<br />
can you help me how to combine those tables and add 1 field from each table (field name is Value) and added field name change to the table name?</p>
<p>e.g : number of table : 8 (T1 &#8211; T8)<br />
number of field in every table = 10 (F1 &#8211; F10). F1 &#8211; F9 in T1 &#8211; T10 fill with the same data value<br />
Data value of F10 is the only field that filled different value in every tables<br />
How to combine (T9 ) with F1-F9, and add F10-F17 named as the tables name and will fills with the value of F10 in every tables?</p>
<p>I hope you can help and give your response to me.  Thank you so much</p>
]]></content:encoded>
		
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		<item>
		<title>
		By: kassambara		</title>
		<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-1669</link>

		<dc:creator><![CDATA[kassambara]]></dc:creator>
		<pubDate>Fri, 01 Feb 2019 00:57:29 +0000</pubDate>
		<guid isPermaLink="false">https://www.datanovia.com/en/?post_type=dt_lessons&#038;p=7232#comment-1669</guid>

					<description><![CDATA[In reply to &lt;a href=&quot;https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-1668&quot;&gt;Barry&lt;/a&gt;.

Thank you for your comments.

What do you think about the mutant() family of functions described at: https://www.datanovia.com/en/lessons/compute-and-add-new-variables-to-a-data-frame-in-r/ ?]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-1668">Barry</a>.</p>
<p>Thank you for your comments.</p>
<p>What do you think about the mutant() family of functions described at: <a href="https://www.datanovia.com/en/lessons/compute-and-add-new-variables-to-a-data-frame-in-r/" rel="ugc">https://www.datanovia.com/en/lessons/compute-and-add-new-variables-to-a-data-frame-in-r/</a> ?</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: Barry		</title>
		<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-1668</link>

		<dc:creator><![CDATA[Barry]]></dc:creator>
		<pubDate>Thu, 31 Jan 2019 16:04:05 +0000</pubDate>
		<guid isPermaLink="false">https://www.datanovia.com/en/?post_type=dt_lessons&#038;p=7232#comment-1668</guid>

					<description><![CDATA[Thanks for the example!

One of the things I am always trying and failing to do is to work with a set of variables from a data frame - not pulling them out, but applying a function to them. 

If I use the &#039;select&#039; command, then I&#039;ve created a copy of the data frame, and have to match it back to the original.

Is there any way to use pipes and dplyr to apply a command to a subset of columns?]]></description>
			<content:encoded><![CDATA[<p>Thanks for the example!</p>
<p>One of the things I am always trying and failing to do is to work with a set of variables from a data frame &#8211; not pulling them out, but applying a function to them. </p>
<p>If I use the &#8216;select&#8217; command, then I&#8217;ve created a copy of the data frame, and have to match it back to the original.</p>
<p>Is there any way to use pipes and dplyr to apply a command to a subset of columns?</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: kassambara		</title>
		<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-1497</link>

		<dc:creator><![CDATA[kassambara]]></dc:creator>
		<pubDate>Mon, 29 Oct 2018 22:52:02 +0000</pubDate>
		<guid isPermaLink="false">https://www.datanovia.com/en/?post_type=dt_lessons&#038;p=7232#comment-1497</guid>

					<description><![CDATA[In reply to &lt;a href=&quot;https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-1496&quot;&gt;Pearson&lt;/a&gt;.

Your feedback is appreciated!]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-1496">Pearson</a>.</p>
<p>Your feedback is appreciated!</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: Pearson		</title>
		<link>https://www.datanovia.com/en/lessons/select-data-frame-columns-in-r/#comment-1496</link>

		<dc:creator><![CDATA[Pearson]]></dc:creator>
		<pubDate>Mon, 29 Oct 2018 22:48:17 +0000</pubDate>
		<guid isPermaLink="false">https://www.datanovia.com/en/?post_type=dt_lessons&#038;p=7232#comment-1496</guid>

					<description><![CDATA[Thank you for sharing!]]></description>
			<content:encoded><![CDATA[<p>Thank you for sharing!</p>
]]></content:encoded>
		
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