octave/matlab read text file line by line and save only numbers into matrix -

-

i have question regarding octave or matlab data post processing. have files exported fluent below:

                     "surface integral report"         mass-weighted average           static temperature                  (k) 
          crossplane-x-0.001            1242.9402           crossplane-x-0.025            1243.0017           crossplane-x-0.050            1243.2036           crossplane-x-0.075            1243.5321           crossplane-x-0.100            1243.9176

and want use octave/matlab post processing. if read first line line, , save lines "crossplane-x-" new file, or directly save data in lines matrix. since have many similar files, can make plots calling titles. go trouble on identify lines contain char "crossplane-x-". trying things this:

clear, clean, clc; % open file , read line line fid = fopen ("h20h22_alonghgpath_temp.dat"); % save full lines new file if chars inside txtread = fgetl (fid) num_of_lines = fskipl(fid, inf); char = 'crossplane-x-' i=1:num_of_lines,   if char in fgetl(fid)     [x, nx] = fscanf(fid);     print x   endif endfor fclose (fid);

would shed light on issue ? using right function ? thank you.

here's quick way specific file:

>> s = fileread("myfile.dat");       % collect file contents string >> c = strsplit(s, "crossplane-x-"); % first cell header, rest data >> m = str2num (strcat (c{2:end}))  % concatenate datastrings, convert numbers m =     1.0000e-03   1.2429e+03    2.5000e-02   1.2430e+03    5.0000e-02   1.2432e+03    7.5000e-02   1.2435e+03    1.0000e-01   1.2439e+03

Comments

Post a Comment

Popular posts from this blog

Spring Boot + JPA + Hibernate: Unable to locate persister -

-
i trying work entity inside request method of spring boot application. entity in project , pom.xml has dependencies it. why error message?: org.hibernate.unknownentitytypeexception: unable locate persister: com.ric.bill.model.bs.par package com.ric.web; import java.util.concurrent.atomic.atomiclong; import javax.persistence.entitymanager; import javax.persistence.persistencecontext; import net.sf.ehcache.cachemanager; import net.sf.ehcache.management.cache; import net.sf.ehcache.management.cachestatistics; import org.hibernate.stat.statistics; import org.springframework.beans.factory.annotation.autowired; import org.springframework.boot.autoconfigure.domain.entityscan; import org.springframework.cache.annotation.enablecaching; import org.springframework.transaction.annotation.enabletransactionmanagement; import org.springframework.transaction.annotation.propagation; import org.springframework.transaction.annotation.transactional; import org.springframework.web.bind.annotati
Read more

go - Golang: panic: runtime error: invalid memory address or nil pointer dereference using bufio.Scanner -

-
i implementing go program uses bufio.scanner , bufio.writer have packaged code follows package main import ( "fmt" "player/command" "strings" ) func main() { //enter code here. read input stdin. print output stdout commands.scanner.scan() { //scan new line , send comand variable check command exist or not input := strings.split(strings.trim(commands.scanner.text(), " "), " ") command := input[0] if command == "" { fmt.printf("$ %s:", commands.pwd) continue } if !commands.commands[command] { commands.throwerror("cannot recognize input.") } else { commands.execute(command, input[1:], nil) } fmt.printf("$ %s:", commands.pwd) } } i using init.go file in main package follows package main import ( "flag" "player/sourc
Read more

c - double free or corruption (fasttop) -

-
this code reads null terminated string file (file containing null terminated strings & should provide index wanted string). error: *** error in `./main': double free or corruption (fasttop): 0x090a4a80 *** aborted code: char *tmp_realloc=null; char *sstring=null; int i=1; /*set file pointer point string*/ fseek(fh,index,seek_set); sstring=(char*)malloc(sizeof(char)); if(sstring == null) return null; tmp_realloc=sstring; while( (*(sstring+i-1)=(char)fgetc((file*)fh)) != 0x0 ) { /*reallocate more memory*/ tmp_realloc=(char*)realloc((char*)sstring,++i); /*if not same address copy old new & set old point new*/ if(tmp_realloc != sstring){ strcpy((char*)tmp_realloc,(char*)sstring); free(sstring); sstring=tmp_realloc; } } could tell me pointer causing issue (& reason) ? remove part /*if not same address copy old new & set old point new*/ if(tmp_realloc != sstring){ strc
Read more