X-Received: by 10.36.54.21 with SMTP id l21mr5649369itl.33.1496332027136; Thu, 01 Jun 2017 08:47:07 -0700 (PDT) X-Received: by 10.157.13.169 with SMTP id 38mr48140ots.6.1496332027067; Thu, 01 Jun 2017 08:47:07 -0700 (PDT) Path: csiph.com!weretis.net!feeder6.news.weretis.net!news.glorb.com!67no435930itx.0!news-out.google.com!k7ni2041itk.0!nntp.google.com!67no435926itx.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.graphics.apps.gnuplot Date: Thu, 1 Jun 2017 08:47:06 -0700 (PDT) Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=81.247.56.198; posting-account=6f4zEAoAAABcPGvJdTxtF_Mhoal-gK1d NNTP-Posting-Host: 81.247.56.198 User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <1137a62e-23b6-4d9e-8b9f-62e034b6f9db@googlegroups.com> Subject: skipping values in a data file From: "hugocoolens@gmail.com" Injection-Date: Thu, 01 Jun 2017 15:47:07 +0000 Content-Type: text/plain; charset="UTF-8" Xref: csiph.com comp.graphics.apps.gnuplot:3655 I have a data file with measurements, each measurement has been repeated 5 times. However because of a bug in the apparatus software the first and the second measurement are always unreliable, therefore I want to skip them i.e. I don't want to plot these unreliable data points, neither do I want to use them for fitting to a function. This is an example: 1 #unreliable 1.5 #unreliable 3 #reliable 3.1 #reliable 2.9 #reliable #start of next 5 measurements: 3 #unreliable 3.1 #unreliable 3.5 #reliable 3.4 #reliable 3.6 #reliable Can anyone here show me how to do is from within Gnuplot? kind regards, Hugo