If you’ve ever used NI’s DIAdem for data analysis you know how useful it is for looking at and analyzing large datasets.\u00a0 What you may or may not have discovered is the @@——@@ commands that can be used to display channel related texts anywhere in the program.<\/p>\n
DIAdem helpfully gives you a list of available commands, but doesn’t tell you what they display or how to use them.
\nProgram Command: @@ChnPropGet(No,Property name)@@
\nFormatting: @@ChnPropGet(1,”Description”)@@
\nOutput: The 1st channel’s Description, other input could be Name, Unit, etc
\nNotes: Make sure to use quotes around the Property name and remember that the channels are counted from the very first channel onwards and found as “Number” in the channel information.<\/p>\n
Command: @@CD()@@
\nFormatting: @@CD(1)@@
\nOutput: The 1st channel’s Units<\/p>\n
Command: @@ChD(Line,No)@@
\nFormatting: @@ChD(2,1)@@
\nOutput: The 1st channel’s second data point value<\/p>\n
Command: @@CL(No)@@
\nFormatting: @@CL(1)@@
\nOutput: The 1st channel’s number of points (length)<\/p>\n
Command: @@CNoXGet(Channel group number,No)@@
\nFormatting: @@CNoXGet(2,1)@@
\nOutput: Finds the 2nd group’s first channel and returns it’s channel number (counting from the first channel.
\nNotes: Could be considered translating from relative position of a channel (in a group) to absolute position in the list of channels.<\/p>\n
Couple of general notes, you can’t nest lookups (at least not in the text boxes, so it would be invalid to:<\/p>\n
and turn it into a lookup: Otherwise it’s pretty helpful to use these when labeling graphs\/etc so you don’t have to constantly correct things.\u00a0 DIAdem also builds in lots of string functions like trim\/etc, so you can clean things up if necessary!<\/p>\n <Wordpress>\u00a0 – I had all these formatted nicely in a table but WordPress ate itself trying to render it, hence the oddball list, sorry. <\/Wordpress><\/p>\n","protected":false},"excerpt":{"rendered":" If you’ve ever used NI’s DIAdem for data analysis you know how useful it is for looking at and analyzing large datasets.\u00a0 What you may or may not have discovered is the @@——@@ commands that can be used to display channel related texts anywhere in the program. DIAdem helpfully gives you a list of available […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,21],"tags":[113,133,115,114,116],"class_list":["post-286","post","type-post","status-publish","format-standard","hentry","category-college","category-labview","tag-diadem","tag-labview","tag-national-instruments","tag-program-variables","tag-special-variables"],"_links":{"self":[{"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/286","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=286"}],"version-history":[{"count":7,"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/286\/revisions"}],"predecessor-version":[{"id":291,"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/286\/revisions\/291"}],"wp:attachment":[{"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chrismeyer.org\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}@@ChnPropGet(794,\"Description\")@@<\/code><\/p>\n
\n@@ChnPropGet(@@CNoXGet(15,1)@@,\"Description\")@@<\/code><\/p>\n