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Math Forum / Math Software / MATLAB / July 2008Parsing Data
Hello all, I am trying to parse some data that looks like: bfleft1=0 bfleft2=378 . . . bfleft298=895 bfleft299=900 and i was wondering what the best way to go about doing it. I have other headers other then bfleft# but figured i could figure it out after i learned how to do it! I was guessing i had to search for the "=" then try to get everything to the left and right. Thanks a bunch markthomas "Markthomas " <uebermenchens@yahoo.com> wrote in message <g5fjer$aq6$1@fred.mathworks.com>... > Hello all, > [quoted text clipped - 13 lines] > guessing i had to search for the "=" then try to get > everything to the left and right. Thanks a bunch But what is your problem? As you say, find the '=', then proceed. John "Markthomas " <uebermenchens@yahoo.com> wrote in message <g5fjer$aq6$1@fred.mathworks.com>... > Hello all, > [quoted text clipped - 13 lines] > guessing i had to search for the "=" then try to get > everything to the left and right. Thanks a bunch Is the problem that you do not know about strtok? John "John D'Errico" <woodchips@rochester.rr.com> wrote in message <g5fl57$rpo$1@fred.mathworks.com>... > "Markthomas " <uebermenchens@yahoo.com> wrote in message > <g5fjer$aq6$1@fred.mathworks.com>... [quoted text clipped - 19 lines] > > John I didn't know what command to use to seperate that data... I guess i have to use strtok but as i seek through the file with fgetl i also run into lines like: type=all other combinations will strtok also handle this?? "John D'Errico" <woodchips@rochester.rr.com> wrote in message <g5fl57$rpo$1@fred.mathworks.com>... > "Markthomas " <uebermenchens@yahoo.com> wrote in message > <g5fjer$aq6$1@fred.mathworks.com>... [quoted text clipped - 19 lines] > > John I didn't know what command to go about seperating the data to the left and right of the "=". I guess strtok is the way to go but i also have to lines that look like: type=all other combinations will strtok read this? "Markthomas " <uebermenchens@yahoo.com> wrote in message <g5fm5u$abr$1@fred.mathworks.com>... > "John D'Errico" <woodchips@rochester.rr.com> wrote in > message <g5fl57$rpo$1@fred.mathworks.com>... [quoted text clipped - 31 lines] > > will strtok read this? Try it. It is the best way to learn. thisline = 'type=all other combinations'; [LHS,remainder] = strtok(thisline,'=') LHS = type remainder = =all other combinations It appears that strtok leaves the '='. So drop the first character from remainder. remainder(1) = []; John ... > I am trying to parse some data that looks like: > bfleft1=0 > bfleft2=378 > . > . ... See if b=textread('yourfile.dat','%*s%d','delimiter','='); suits... -- dpb <none@non.net> wrote in message <g5fo6p$au6 $1@aioe.org>... > ... > > I am trying to parse some data that looks like: [quoted text clipped - 11 lines] > > -- I was tried to use the strread command but was not getting what i wanted: readin = upper(fgetl(id)) --- i get TYPE=ALL OTHER COMB. [name value] = strread(readin,'%*s %s','delimeter','=') but couldn't get it to work... any ideas on this command? > dpb <none@non.net> wrote in message <g5fo6p$au6 > $1@aioe.org>... [quoted text clipped - 21 lines] > > but couldn't get it to work... any ideas on this command? As written you're asking for two return values but telling it to skip the first and return only one. You're also asking for a space between the two strings -- whether it will ignore that or not I didn't test. Lastly, the line above doesn't match the "title=value" format you asked about to begin with. It looks like you may want to use the 'headerlines' option of textread(). Why are you doing it this way instead of reading the whole file, anyway? If you want the names as well as the values, then [n,b]=textread('yourfile.dat','%s%d','delimiter','='); worked for a sample file of data as in your first posting... doc textread -- dpb <none@non.net> wrote in message <g5g4lq$1ks$1@aioe.org>... > > dpb <none@non.net> wrote in message <g5fo6p$au6 > > $1@aioe.org>... [quoted text clipped - 43 lines] > > -- the main reason why i can't do the whole file that way is because there are other data types in the structure of the file. besides the numbers there is times, dates, and long strings that have spaces... i wasn't sure which way to and be most efficient Markthomas One other tool you may want to consider is regexp. |
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