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[Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV pro
From: |
Dan Sebald |
Subject: |
[Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV processing using dlmread() as core |
Date: |
Wed, 21 Aug 2013 20:20:19 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0 SeaMonkey/2.15 |
Follow-up Comment #3, patch #8140 (project octave):
I'm including some sample code to test out this patch before and after
("importdata_new") applying the patch.
x = rand(10000, 4);
t = [1:length(x)]';
fid = fopen('foo.csv', 'wt');
fprintf(fid, "ONE,TWO,THREE,FOUR,FIVEn");
fprintf(fid, "%d,%g,%g,%g,%gn", [t x]');
fclose(fid);
tstart = cputime();
aa = importdata('foo.csv', ',');
cputime() - tstart
plot(aa.data(:,1), aa.data(:,2))
tstart = cputime();
bb = importdata_new('foo.csv');
cputime() - tstart
plot(bb.data(:,1), bb.data(:,2))
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- [Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV processing using dlmread() as core, Erik Kjellson, 2013/08/12
- [Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV processing using dlmread() as core, Dan Sebald, 2013/08/21
- [Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV processing using dlmread() as core,
Dan Sebald <=
- [Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV processing using dlmread() as core, Rik, 2013/08/23
- [Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV processing using dlmread() as core, Dan Sebald, 2013/08/24
- [Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV processing using dlmread() as core, Rik, 2013/08/24
- [Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV processing using dlmread() as core, Dan Sebald, 2013/08/25
- [Octave-patch-tracker] [patch #8140] Speed up importdata() ASCII CSV processing using dlmread() as core, Rik, 2013/08/31