Delete rows from text file that do not contain certain numbers

3 views (last 30 days)
Hi all, I am trying to delete all the lines that do NOT contain 1010001 and 1010003. Can anybody help how to make this job much easier?
Thanks, below is a bit of a data.
1010001,1960,1,67.1,-11.0
1010001,1960,2,101.0,-5.4
1010001,1960,3,56.3,-6.2
1010001,1960,4,77.5,2.1
1010001,1960,5,74.0,13.4
1010001,1960,6,91.1,15.9
1010001,1960,7,102.2,17.0
1010001,1960,8,67.8,17.1
1010001,1960,9,74.8,13.0
1010001,1960,10,96.7,5.3
1010001,1960,11,70.5,0.9
1010001,1960,12,89.3,-8.9
1010002,1960,1,67.1,-10.7
1010002,1960,2,104.5,-4.9
1010002,1960,3,56.8,-6.1
1010002,1960,4,77.3,2.3
1010002,1960,5,71.5,13.6
1010002,1960,6,91.6,16.0
1010002,1960,7,104.2,17.2
1010002,1960,8,60.8,17.2
1010002,1960,9,77.4,13.2
1010002,1960,10,101.2,5.3
1010002,1960,11,70.0,0.9
1010002,1960,12,87.1,-8.7
1010003,1960,1,70.9,-11.4
1010003,1960,2,98.1,-5.4
1010003,1960,3,57.4,-6.0
1010003,1960,4,78.2,1.8
1010003,1960,5,78.7,13.5
1010003,1960,6,87.5,15.9
1010003,1960,7,103.0,17.2
1010003,1960,8,76.7,17.3
1010003,1960,9,68.6,12.9
1010003,1960,10,90.9,5.2
1010003,1960,11,70.0,0.9
1010003,1960,12,100.7,-9.0
1010004,1960,1,77.5,-11.1
1010004,1960,2,108.6,-5.1
1010004,1960,3,58.4,-5.7
1010004,1960,4,80.4,2.1
1010004,1960,5,76.8,13.5
1010004,1960,6,108.8,16.0
1010004,1960,7,101.4,17.4
1010004,1960,8,48.8,17.5
1010004,1960,9,62.5,13.2
1010004,1960,10,100.0,5.4
1010004,1960,11,70.0,1.2
1010004,1960,12,106.9,-8.8
1010005,1960,1,95.2,-10.5
1010005,1960,2,104.2,-4.7
1010005,1960,3,58.9,-5.0
1010005,1960,4,68.7,2.9
1010005,1960,5,74.3,13.8
1010005,1960,6,106.6,16.4
1010005,1960,7,102.8,17.9
1010005,1960,8,30.9,17.9
1010005,1960,9,47.9,13.2
1010005,1960,10,98.7,5.6

Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 9 Nov 2014
a=importdata('file.txt')
a(~ismember(a(:,1),[1010001;1010003],'rows'),:)=[]

More Answers (0)

Categories

Find more on Environment and Settings in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!