2011-12-12 226 views
1

我想搜索文本文件中的特定单词并返回其位置。此代码读取文本罚款...在Matlab中搜索文本文件中的特定单词

fid = fopen('jojo-1 .txt','r'); 
while 1 
    tline = fgetl(fid); 
    if ~ischar(tline) 
     break 
    end 
end 

但是当我添加此代码

U = strfind(tline, 'Term'); 

它虽然串'Term'文件中存在,则返回[]

你能帮我吗?

+3

你要添加哪行代码?你可以发布你的代码与该行? – Blender

+2

请记住,如果您的行中包含'term'的行不包含'term',则U会被[]覆盖。 –

回答

1

对于我来说,它工作正常:

strfind(' ertret Term ewrwerewr', 'Term') 

ans = 

    9 

你肯定“期限”真的是你的行?

+0

是的,我确定,但它确定我决定去另一个方向 –

0

我相信你~ischar(tline)使麻烦,因为代码“休息”tline不char..so的strfind什么也找不到。

因此,我所做的市长更改实际上是在被识别为具有某些字符的行的行上搜索字符串。

我想在我的文本文件,你的代码一点点修改:

yyyy/mmdd(or -ddd)/hh.h):2011/-201/10.0UT geog Lat/Long/Alt= 50.0/ 210.0/2000.0 

NeQuick is used for topside Ne profile 
URSI maps are used for the F2 peak density (NmF2) 
CCIR maps are used for the F2 peak height (hmF2) 
IRI-95 option is used for D-region 
ABT-2009 option is used for the bottomside thickness parameter B0 
The foF2 STORM model is turned on 
Scotto-97 no L option is used for the F1 occurrence probability 
TBT-2011 option is used for the electron temperature 
RBY10+TTS03 option is used for ion composition 

Peak Densities/cm-3: NmF2= 281323.9 NmF1=  0.0 NmE= 2403.3 
Peak Heights/km:  hmF2= 312.47 hmF1=  0.00 hmE= 110.00 

Solar Zenith Angle/degree        109.6 
Dip (Magnetic Inclination)/degree      65.76 
Modip (Modified Dip)/degree       55.06 
Solar Sunspot Number (12-months running mean) Rz12  57.5 
Ionospheric-Effective Solar Index IG12     63.3 

TEC [1.E16 m-2] is obtained by numerical integration in 1km steps 
    from 50 to 2000.0 km. t is the percentage of TEC above the F peak. 

- 
H ELECTRON DENSITY TEMPERATURES   ION PERCENTAGES/%  1E16m-2 
km Ne/cm-3 Ne/NmF2 Tn/K Ti/K Te/K O+ N+ H+ He+ O2+ NO+ Clust TEC t/% 
0.0  -1 -1.000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 7.7 75 
5.0  -1 -1.000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 7.7 75 
10.0  -1 -1.000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 7.7 75 

它是从一个电离层模型的输出,但不是重要的:)

所以我用下面的Matlab代码要找到它串

out = fopen('fort.7');      % Open function 
counter = 0;        % line counter (sloppy but works) 
while 1          % infinite loop 
    tline = fgetl(out);      % read a line 
    counter = counter + 1;     % we are one line further 
    if ischar(tline)      % if the line is string 
     U = strfind(tline, 'TEMPERATURES'); % where the string start (if at all) 
     if isfinite(U) == 1;    % if it is a number actually 
      break       % we found it, lets go home 
     end 
    end 
end 

结果:

counter = 26 
U = 27 
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