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

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

Answer 1

[Arif Hoq]

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'}

[Arif Hoq]

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

[Arif Hoq]

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