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<?xml-stylesheet type="text/xsl" href="https://community.appian.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Input: {a,a,b,c,d,d,e} Required Output: {a,b,c,d}  Is there any e</title><link>https://community.appian.com/discussions/f/rules/2104/input-a-a-b-c-d-d-e-required-output-a-b-c-d-is-there-any-e</link><description>Input: {a,a,b,c,d,d,e} Required Output: {a,b,c,d} Is there any existing function to complete the above requirement? I am using v6.6 Thanks... OriginalPostID-99680 OriginalPostID-99680</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: Input: {a,a,b,c,d,d,e}&lt;br /&gt;Required Output: {a,b,c,d}&lt;br /&gt;&lt;br /&gt;Is there any e</title><link>https://community.appian.com/thread/7471?ContentTypeID=1</link><pubDate>Wed, 12 Feb 2014 18:00:47 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:8c867766-54eb-4686-9dfd-bed03f5c4db9</guid><dc:creator>aayusha</dc:creator><description>Thanks.&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Input: {a,a,b,c,d,d,e}&lt;br /&gt;Required Output: {a,b,c,d}&lt;br /&gt;&lt;br /&gt;Is there any e</title><link>https://community.appian.com/thread/7470?ContentTypeID=1</link><pubDate>Wed, 12 Feb 2014 17:58:33 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:d96f7926-ffd7-4400-9ec8-f9c3e37134d0</guid><dc:creator>Mike Schmitt</dc:creator><description>I also use the Union method - however since I needed to remove duplicates in several different places, i wrote a custom expression rule which takes one input (array) and passes out the same array with duplicates removed.  The internals of the expression rule is just the aforementioned Union(), though it could theoretically be replaced with something else in the future.&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Input: {a,a,b,c,d,d,e}&lt;br /&gt;Required Output: {a,b,c,d}&lt;br /&gt;&lt;br /&gt;Is there any e</title><link>https://community.appian.com/thread/7466?ContentTypeID=1</link><pubDate>Wed, 12 Feb 2014 15:11:05 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:0ec23601-fb78-4bf1-bf01-4523d292f2f2</guid><dc:creator>vimalkumars</dc:creator><description>Hi,&lt;br /&gt;Following expression will help you in this case&lt;br /&gt;union({a,a,b,c,d,d,e},{a,a,b,c,d,d,e}).&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Input: {a,a,b,c,d,d,e}&lt;br /&gt;Required Output: {a,b,c,d}&lt;br /&gt;&lt;br /&gt;Is there any e</title><link>https://community.appian.com/thread/7465?ContentTypeID=1</link><pubDate>Wed, 12 Feb 2014 14:54:19 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:75a02707-b9c0-4c9a-bc3d-be9daa8f1331</guid><dc:creator>aayusha</dc:creator><description>Required Output: {a,b,c,d,e}&lt;br /&gt;Unique ones.&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>