Find a word in a text file and read values from that line

2 次查看（过去 30 天）
aero123
aero123 2022-3-7
评论： Arif Hoq 2022-3-8
Example :
File name: mhcb0020.03o
Rinex version: 2
File type: Observation
Satellite system: GPS
Position_reference (X/Y/Z): -2664065.576700 -4323178.973800 3848368.475300
Antenna-delta (H/E/N): 0.068700 0.000000 0.000000
I need to extract the 3 values after 'Position_reference(X/Y/Z)' from the text file.
Can you help me with this?
Thanks

请先登录，再回答此问题。

回答（1 个）

Arif Hoq
Arif Hoq 2022-3-7
Ran in:
A=readtable('example2.txt','delimiter',':');
Warning: Column headers from the file were modified to make them valid MATLAB identifiers before creating variable names for the table. The original column headers are saved in the VariableDescriptions property.
Set 'VariableNamingRule' to 'preserve' to use the original column headers as table variable names.
output=table2array(A(4,2))
output = 1×1 cell array
{'-2664065.576700 -4323178.973800 3848368.475300'}
  2 个评论
Arif Hoq
Arif Hoq 2022-3-7
编辑：Arif Hoq 2022-3-7
Ran in:
or if you want to find the string (Position_reference (X/Y/Z)) in the text file
A=readtable('example2.txt','delimiter',':','ReadVariableNames',false);
str=string(table2array(A));
[idx]=find(str=={'Position_reference (X/Y/Z)'});
output=str(idx,2) % string
output = "-2664065.576700 -4323178.973800 3848368.475300"
% for numeric result
format longG
numeric_output=rmmissing(str2double(split(output,' ')))
numeric_output = 3×1
1.0e+00 * -2664065.5767 -4323178.9738 3848368.4753

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Text Data Preparation 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by