Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.graphics.apps.gnuplot > #976
| Path | csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!border3.nntp.dca.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail |
|---|---|
| From | ampbox@gmail.com |
| Newsgroups | comp.graphics.apps.gnuplot |
| Subject | How to know total number of blocks in a file? |
| Date | Thu, 15 Mar 2012 07:43:43 -0700 (PDT) |
| Organization | http://groups.google.com |
| Lines | 20 |
| Message-ID | <5661512.256.1331822623825.JavaMail.geo-discussion-forums@ynhs12> (permalink) |
| NNTP-Posting-Host | 134.94.164.189 |
| Mime-Version | 1.0 |
| Content-Type | text/plain; charset=ISO-8859-1 |
| X-Trace | posting.google.com 1331822624 30014 127.0.0.1 (15 Mar 2012 14:43:44 GMT) |
| X-Complaints-To | groups-abuse@google.com |
| NNTP-Posting-Date | Thu, 15 Mar 2012 14:43:44 +0000 (UTC) |
| Complaints-To | groups-abuse@google.com |
| Injection-Info | glegroupsg2000goo.googlegroups.com; posting-host=134.94.164.189; posting-account=14K4ewoAAACUaC1A5Gvuji1aDVzFdbIT |
| User-Agent | G2/1.0 |
| Xref | csiph.com comp.graphics.apps.gnuplot:976 |
Show key headers only | View raw
Hi all,
I have a data file with multiple data blocks (groups of data lines separated by blank lines). I want to plot only the last block.
I can do it like
plot 'filename' every :::<blockNO>::<blockNO>
where <blockNO> is the block number, and since it is the last block, this number equals the total number of blocks in my data file.
The problem is, I don't know how many blocks are there in my data file. (Because my simulation adds a new block every few hours and the longer simulation runs, the more number of frames (block) I get.)
Is there a built-in variable like GPVAL_DATA_X_MAX etc. to give me this information?
Another possible solution: can I get the number of lines etc. by a bash command (I am in Linux) INSIDE my gnuplot script and give it to a variable? I mean something like:
NBLOCKS = `!wc -l filename`
Thanks in advance,
Masoud.
Back to comp.graphics.apps.gnuplot | Previous | Next — Next in thread | Find similar
How to know total number of blocks in a file? ampbox@gmail.com - 2012-03-15 07:43 -0700
Re: How to know total number of blocks in a file? sfeam <sfeam@users.sourceforge.net> - 2012-03-15 09:53 -0700
Re: How to know total number of blocks in a file? sfeam <sfeam@users.sourceforge.net> - 2012-03-15 11:34 -0700
csiph-web