Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
Drexel University or The Math Forum.


Phil
Posts:
61
Registered:
12/8/08


Re: Remove text from file of numerics
Posted:
Aug 1, 2013 3:09 AM


dpb <none@non.net> wrote in message <ktbcad$qr0$1@speranza.aioe.org>... > On 7/31/2013 4:37 AM, Phil Roberts wrote: > > Hello, > > > > I have the following data within a text file: > > > > Cycle 1 > > x y z > > 1 10 100 > > 2 20 200 > > 3 30 300 > > 4 40 400 > > 5 50 500 > > 6 60 600 > > 7 70 700 > > 8 80 800 > > 9 90 900 > > 10 100 1000 > > > > Cycle 2 > > x y z > > 11 110 1100 > > 12 120 1200 > > 13 130 1300 > > 14 140 1400 > > 15 150 1500 > > 16 160 1600 > > 17 170 1700 > > 18 180 1800 > > 19 190 1900 > > 20 200 2000 > > > > Cycle 3 > > x y z > > 21 210 2100 > > 22 220 2200 > > 23 230 2300 > > 24 240 2400 > > 25 250 2500 > > 26 260 2600 > > 27 270 2700 > > 28 280 2800 > > 29 290 2900 > > 30 300 3000 > > > > How do I read in this data so I just have a matrix of 30 x 3 without the > > strings? > > doc textscan > > It'll read multiple calls from the same file and since it appears the > file is counted number of lines/cycle you can use 'headerline',2 once > then 3 thereafter (unless the blank line also begins the file, then it's > even simpler as there are 3 header lines for all cases). Repeat until > feof(fid) > > You'll get a cell array unfortunately, but you can the cast it to a > matrix w/ cell2mat. > > Other than that, just use fgetl() to read the headerlines and then > fscanf() to return the array data in a loop again until feof() > > 
Hello,
I am still a little unsure what you mean. I have used textscan and only the first block of data comes through; hence the script stops before reading the other two blocks of data.
I have never used feof. Please can you help with some example code?
Many thanks,
Phil



