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Full Discussion: Add values to file in 2 new columns
Top Forums UNIX for Beginners Questions & Answers Add values to file in 2 new columns Post 303044018 by jiam912 on Wednesday 12th of February 2020 02:15:45 PM
Old 02-12-2020
Add values to file in 2 new columns
Columns 4 and 5 are X and Y coordinates, column 6 is the elevation

I would like to add 2 new columns at the end of the file with values

the distance between first(X)(Y) and last location (X)(Y), based in 2 rows
the difference in elevation = ($6-prev6)

How to calculate the requested values and add to last columns, and when the records appears only 1 time(columns 1 and 2 single row ), write values 0.00 0.00

Input file

Code:
48047 41513  2  373512.79     2542085.84     154.53      12.64      90.63
48047 41513  3  373513.29     2542085.00     154.52      12.34      91.02
48047 41525  2  373663.51     2542087.65     153.93      12.36      90.70
48047 41525  3  373662.27     2542088.44     153.99      12.76      86.99
48049 39785  2  351912.93     2542112.25     160.91      12.16      90.61
48049 39797  2  352063.17     2542112.38     160.19      12.10      90.66
48049 39809  2  352213.12     2542113.01     159.96      12.24      90.75

Desired Output

Code:
48047 41513  2  373512.79     2542085.84     154.53      12.64      90.63
48047 41513  3  373513.29     2542085.00     154.52      12.34      91.02    0.98     0.01 
48047 41525  2  373663.51     2542087.65     153.93      12.36      90.70
48047 41525  3  373662.27     2542088.44     153.99      12.76      86.99    1.47     0.06
48049 39785  2  351912.93     2542112.25     160.91      12.16      90.61    0.00     0.00
48049 39797  2  352063.17     2542112.38     160.19      12.10      90.66    0.00     0.00
48049 39809  2  352213.12     2542113.01     159.96      12.24      90.75    0.00     0.00

My code works only when the records in columns 1 and 2 are duplicate. If they are not duplicate my code delete the single lines.

Code I use to get the values

Code:
 awk '{
       pp[NR]  = $2
       ll[NR]  = $1
        x[NR]  = $4
        y[NR]  = $5
          z[NR]  = $6
      } END {
               first = 1
               count = 0
               for ( i=1 ; i <= NR ; i++ ) {
                   if (pv[i] != pv[i+1] || line[i] != line[i+1]) {
                      last = i
                      count++
                      dx = x[first]-x[last]
                      dy = y[first]-y[last]
                      el = z[first]-z[last]
                      ele = sqrt(el^2)
                      len[count] = sqrt(dx^2+dy^2)
                      if ( len[count] <= 1000 && len[count] > 0 ) {
                      printf ("%8.2f %8.2f \n",
                      len[count],ele)
                      }\
                      first = i+1
                  }
               }
              }' file

Thanks in advance.
 

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LEARN ABOUT SUSE

pfscut

pfscut(1)						      General Commands Manual							 pfscut(1)

NAME

       pfscut - Extract a rectangle out of a frame in PFS stream

SYNOPSIS

       pfscut [--left <columns>] [--right <columns>] [--top <rows>] [--bottom <rows>] [--width <new_width>] [--height <new_height>] [--help] [x_ul
       y_ul x_br y_br]

DESCRIPTION

       Extract a rectangle out of each frame in PFS stream. You can either specify x and y coordinates of upper left and lower right  corner  (the
       coordinates start with 0 and rise in the left-to-right and up-to-botton directions) or give a combination of the options listed below.

OPTIONS

       --left <columns>, -l <columns>
	      Number of columns to be cut out from the left edge of an image.

       --right <columns>, -r <columns>
	      Number of columns to be cut out from the right edge of an image.

       --top <rows>, -t <rows>
	      Number of rows to be cut out from the top edge of an image.

       --bottom <rows>, -b <rows>
	      Number of rows to be cut out from the bottom edge of an image.

       --width <new_width>, -W <new_width>
	      Width of an output image. Note that --width can be mixed with either --left or --right option.

       --height <new_height>, -H <new_height>
	      Height of an output image. Note that --height can be mixed with either --top or --bottom option.

       --help, -h
	      Print a list of commandline options.

EXAMPLES

       pfsin image.hdr | pfscut --left 20 --top 5 | pfsout out.hdr
	      Cut out 20 columns from the left and 5 rows from the top edge of image.hdr and save frame as out.hdr.

       pfsin image.hdr | pfscut --left 20 --width 400 | pfsout out.hdr
	      Cut out 20 columns from the left edge of image.hdr, and create output image 400 pixels in width.

       pfsin image.hdr | pfscut 0 0 511 511 | pfsout out.hdr
	      Cut  left-upper  part  of  the  image of the size 512x512 (note that coordinates start with 0 and 512 is the last row/column that is
	      included in the resulting image).

       SEE ALSO
	      pfsin(1) pfsout(1)

BUGS

       Please report bugs and comments to Dorota Zdrojewska <dzdrojewska@wi.ps.pl>.

																	 pfscut(1)
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