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  • Users: vidmo
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  1. vidmo

    copy lines whilst adding an incremental column

    Hi, I have a file like this: ..... 10801 0.0 14.1 1.09083 0.00744552 0.00142242 0.0201911 10802 0.10 14.08 1.06125 0.00697322 0.00133229 0.0201911 10803.... $1 is an length coordinate, and I would like to create a depth coordinate as $2 so that i have a depth every 10 cm for 1 metre and...
  2. vidmo

    average part of column

    I know this question has been put before, but in a more simplistic way, like averaging $1 every 5 rows. I would like to know how to average out a column when $1 has the same number ( but there is not equal amounts of numbers in $1). e.g. 635 -1.47 0 62.125 8.835 7.365 5.5 635 -1.97 1.91877...
  3. vidmo

    second array?

    Hi, I have two files. E.g: file a: 486 -1.47 38.1073 file b: 486 -1.97 34.7981 -3.35 and this is my script so far: awk ' BEGIN { while (getline < "file b") { count[$1]=$2 } } { if (count[$1]) print $1, $2*-1, $3, count[$1]*-1}' file a > out I also want to...
  4. vidmo

    find maximum values in file

    Hi, is it possible find the maximum depth in $2 for every different value in $1(a coordinate)?. The depth in the file ranges to a maximum of around -14 and always starts at -1.47. $4 is "actual" depth 486 -1.47 1.83712 -3.35 486 -1.97 1.67761 -3.35 486 -2.47 1.4363 -3.35 486 -2.97 2.89847 -3.35...
  5. vidmo

    wildcard in loops

    I'm hoping this is a simple question: my script: x="B1" if [ "$x" = B* ]; then echo B else echo M fi this doesn't work but hopefully you can see what i want to do - how do i get the if loop to recognize that the input contains the letter 'b' with out having to do: if [ x = 1 ] || [ x = 2 ]...
  6. vidmo

    find records within certain parameters

    Hi, I am trying to smooth out some data. I have a long file formatted with position and signal strength: 22.38762 55.43485 107.333 22.3878 55.43485 94.0333 22.38797 55.43487 83.1333 22.38875 55.435 86.2666 22.38895 55.435 93.2999 I want to go through each line and find all other records in the...

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