08-25-2009
how to delete duplicate rows based on last column
hii i have a huge amt of data stored in a file.Here in this file i need to remove duplicates rows in such a way that the last column has different data & i must check for greatest among last colmn data & print the largest data along with other entries but just one of other duplicate entries is needed .For example the given file which looks like this
1902 8 22 3 40.0000 77.0000 8.60
1902 8 22 3 40.0000 76.5000 8.20
1902 8 22 3 40.0000 76.5000 8.30
1902 8 22 3 40.0000 77.0000 8.40
1902 8 22 3 39.8000 76.2000 8.10
1902 9 30 6 38.5000 67.0000 7.70
1902 9 30 6 38.5000 67.0000 6.30
1902 10 6 9 36.5000 70.5000 7.20
1902 12 4 22 37.8000 65.5000 4.90
Now i want the output for such a file as below
1902 8 22 3 40.0000 77.0000 8.60
1902 8 22 3 40.0000 76.5000 8.30
1902 8 22 3 39.8000 76.2000 8.10
1902 9 30 6 36.5000 67.0000 7.70
1902 10 6 9 36.5000 70.5000 7.20
1902 12 4 22 37.8000 65.5000 4.90
------
Last edited by reva; 08-25-2009 at 06:17 AM..
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LEARN ABOUT OPENSOLARIS
mlib_videocoloryuv444seq_to_abgrint
mlib_VideoColorYUV444seq_to_ABGRint(3MLIB) mediaLib Library Functions mlib_VideoColorYUV444seq_to_ABGRint(3MLIB)
NAME
mlib_VideoColorYUV444seq_to_ABGRint - color convert YUV sequential to ABGR interleaved
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
void mlib_VideoColorYUV444seq_to_ABGRint(mlib_u32 *ABGR, const mlib_u8 *Y,
const mlib_u8 *U, const mlib_u8 *V, const mlib_u8 *A_array,
mlib_u8 A_const, mlib_s32 w, mlib_s32 h, mlib_s32 dlb, mlib_s32 slb);
DESCRIPTION
The Y, U, V pixel streams are converted into an ABGR pixel stream. All pixel components are 8-bit unsigned integers. All buffers have
dimensions w and h.
The alpha values for this function work in the following fashion:
o If A_array pointer is not NULL, the values are taken from there. It has to have the same dimensions as the Y buffer.
o If A_array pointer is NULL, the alpha values for every pixel are set to A_const.
The following equation is used:
|R| |1.1644 0.0000 1.5966| [|Y| | 16.0000|]
|G| = |1.1644 -0.3920 -0.8132| * [|U| - |128.0000|]
|B| |1.1644 2.0184 0.0000| [|V| |128.0000|]
PARAMETERS
The function takes the following arguments:
ABGR Pointer to output buffer.
Y Pointer to Y input buffer.
U Pointer to U input buffer.
V Pointer to V input buffer.
A_array Array of alpha values.
A_const Constant alpha value.
w Image width in pixels.
h Image height in lines.
dlb Linebytes for output buffer.
slb Linebytes for input buffers.
RETURN VALUES
None.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
mlib_VideoColorYUV420seq_to_ARGBint(3MLIB), mlib_VideoColorYUV411seq_to_ARGBint(3MLIB), mlib_VideoColorYUV422seq_to_ARGBint(3MLIB),
mlib_VideoColorYUV444seq_to_ARGBint(3MLIB), mlib_VideoColorYUV420seq_to_ABGRint(3MLIB), mlib_VideoColorYUV411seq_to_ABGRint(3MLIB),
mlib_VideoColorYUV422seq_to_ABGRint(3MLIB), mlib_VideoColorYUYV422int_to_ARGBint(3MLIB), mlib_VideoColorYUV444int_to_ARGBint(3MLIB),
mlib_VideoColorYUYV422int_to_ABGRint(3MLIB), mlib_VideoColorYUV444int_to_ABGRint(3MLIB), mlib_VideoColorUYVY422int_to_ARGBint(3MLIB),
mlib_VideoColorUYVY422int_to_ABGRint(3MLIB), mlib_VideoColorUYV444int_to_ARGBint(3MLIB), mlib_VideoColorUYV444int_to_ABGRint(3MLIB),
attributes(5)
SunOS 5.11 2 Mar 2007 mlib_VideoColorYUV444seq_to_ABGRint(3MLIB)