Output All Rows of a File Whose 3rd and 4th Line are Within a Certain Range of the 3rd and 4th Columns of...
I am looking for help with filtering through a few thousand star brightnesses I have on text files. I have two text files (both of the same star field, just different filters), each file has four columns:
Column 1 - Brightness |
Column 2 - Uncertainty |
Column 3 - X coordinate |
Column 4 - Y coordinate |
The x and y coordinates for the stars in each filter can be slightly off though... So I am looking to use a code similar to something like:awk -F'|' 'NR==FNR{c[$3$4]++;next};c[$3$4]' file1 file2 > output.txt but that can find matches for the 3rd and 4th columns within 1.5 units between the two images.
Essentially, I am looking for a way to compare two columns and print the row if it is within the +/- 1.5 range of the other file's columns. Any ideas would be hugely appreciated. Thank you.
sorting range filtering
asked Nov 26 '18 at 2:03
Ryan KirbyRyan Kirby
62
add a comment |
I am looking for help with filtering through a few thousand star brightnesses I have on text files. I have two text files (both of the same star field, just different filters), each file has four columns:
Column 1 - Brightness |
Column 2 - Uncertainty |
Column 3 - X coordinate |
Column 4 - Y coordinate |
The x and y coordinates for the stars in each filter can be slightly off though... So I am looking to use a code similar to something like:awk -F'|' 'NR==FNR{c[$3$4]++;next};c[$3$4]' file1 file2 > output.txt but that can find matches for the 3rd and 4th columns within 1.5 units between the two images.
Essentially, I am looking for a way to compare two columns and print the row if it is within the +/- 1.5 range of the other file's columns. Any ideas would be hugely appreciated. Thank you.
sorting range filtering
asked Nov 26 '18 at 2:03
Ryan KirbyRyan Kirby
62
add a comment |
I am looking for help with filtering through a few thousand star brightnesses I have on text files. I have two text files (both of the same star field, just different filters), each file has four columns:
Column 1 - Brightness |
Column 2 - Uncertainty |
Column 3 - X coordinate |
Column 4 - Y coordinate |
The x and y coordinates for the stars in each filter can be slightly off though... So I am looking to use a code similar to something like:awk -F'|' 'NR==FNR{c[$3$4]++;next};c[$3$4]' file1 file2 > output.txt but that can find matches for the 3rd and 4th columns within 1.5 units between the two images.
Essentially, I am looking for a way to compare two columns and print the row if it is within the +/- 1.5 range of the other file's columns. Any ideas would be hugely appreciated. Thank you.
sorting range filtering
asked Nov 26 '18 at 2:03
Ryan KirbyRyan Kirby
62
I am looking for help with filtering through a few thousand star brightnesses I have on text files. I have two text files (both of the same star field, just different filters), each file has four columns:
Column 1 - Brightness |
Column 2 - Uncertainty |
Column 3 - X coordinate |
Column 4 - Y coordinate |
The x and y coordinates for the stars in each filter can be slightly off though... So I am looking to use a code similar to something like:awk -F'|' 'NR==FNR{c[$3$4]++;next};c[$3$4]' file1 file2 > output.txt but that can find matches for the 3rd and 4th columns within 1.5 units between the two images.
Essentially, I am looking for a way to compare two columns and print the row if it is within the +/- 1.5 range of the other file's columns. Any ideas would be hugely appreciated. Thank you.
sorting range filtering
sorting range filtering
asked Nov 26 '18 at 2:03
Ryan KirbyRyan Kirby
62
asked Nov 26 '18 at 2:03
Ryan KirbyRyan Kirby
62
edited Nov 26 '18 at 4:15
Ryan Kirby
asked Nov 26 '18 at 2:03
Ryan KirbyRyan Kirby
62
asked Nov 26 '18 at 2:03
Ryan KirbyRyan Kirby
62
asked Nov 26 '18 at 2:03
Ryan KirbyRyan Kirby
62
62
add a comment |
add a comment |
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