Hi all, I need some help on switching field/column values. For example I have a file name data.txt which contains:
a b
a b
a b
and I want to switch a and b and save it to the same file.
the file data.txt then will have:
b a
b a
b a
The problem is, well, I know how to... (7 Replies)
Hi,
I have the following text file:
8 T1mapping_flip02 ok 128 108 30 1 665000-000008-000001.dcm
9 T1mapping_flip05 ok 128 108 30 1 665000-000009-000001.dcm
10 T1mapping_flip10 ok 128 108 30 1 665000-000010-000001.dcm
11 T1mapping_flip15 ok 128 108 30... (2 Replies)
Hi, all.
I need a shell script which gathers data from a remote XML file and then displays it according to my needs.. I need this for my job due to the fact that I need to keep track price changes of euro, usd, gold, etc.
The XML file I am talking about is located at this page: cnnturk dot... (4 Replies)
I have a text file where the second column is a list of numbers going from small to large. I want to extract the rows where the second column is smaller than or equal to 0.0001.
My input:
rs10082730 9e-08 12 46002702
rs2544081 1e-07 12 46015487
rs1425136 1e-06 7 35396742
rs2712590... (1 Reply)
Hi,
I would like to use sed to replace NA to x ('s/NA/x/g'), but only in the 5th column of the space delimited text file, nowhere else. How do I go about doing that? Thanks! (1 Reply)
Hi,
I have a tab delimited text file from which I want to cut out specific columns. If the second column equals one, I want to cut out columns 1 and 5 and 6. If the second column equals two, I want to cut out columns 1 and 5 and 7. How do I go about doing that? Thanks! (4 Replies)
I have a file (let say file B) like this:
File B:
A1 3 5
A1 7 9
A2 2 5
A3 1 3
The first column defines a filename and the other two define a range in that specific file. In the same directory, I have also three more files (File A1, A2 and A3). Here is 10 sample lines... (3 Replies)
All,
I have some sample text file(.csv) in the below format. In my actual file there are at least 100K rows.
date 03/25/2016
A,B,C
D,E,F
date 03/26/2016
1,2,3
4,5,6
date 03/27/2016
6,4,3
4,5,6
I require the following output where in the date appeared at different locations need to... (3 Replies)
Discussion started by: ks_reddy
3 Replies
LEARN ABOUT DEBIAN
imager::preprocess
Imager::Preprocess(3pm) User Contributed Perl Documentation Imager::Preprocess(3pm)NAME
Imager::Preprocess - simple preprocessor for handling multiple sample sizes
SYNOPSIS
/* in the source: */
#code condition true to work with 8-bit samples
... code using preprocessor types/values ...
#/code
# process and make #line directives
perl -MImager::Preprocess -epreprocess foo.im foo.c
# process and no #line directives
perl -MImager::Preprocess -epreprocess -l foo.im foo.c
DESCRIPTION
This is a simple preprocessor that aims to reduce duplication of source code when implementing an algorithm both for 8-bit samples and
double samples in Imager.
Imager's "Makefile.PL" currently scans the MANIFEST for .im files and adds Makefile files to convert these to .c files.
The beginning of a sample-independent section of code is preceded by:
#code expression
where expression should return true if processing should be done at 8-bits/sample.
You can also use a #code block around a function definition to produce 8-bit and double sample versions of a function. In this case #code
has no expression and you will need to use IM_SUFFIX() to produce different function names.
The end of a sample-independent section of code is terminated by:
#/code
#code sections cannot be nested.
#/code without a starting #code is an error.
The following types and values are defined in a #code section:
o IM_GPIX("im", "x", "y", &col)
o IM_GLIN("im", "l", "r", "y", "colors")
o IM_PPIX("im", "x", "y", &col)
o IM_PLIN("im", "x", "y", "colors")
o IM_GSAMP("im", "l", "r", "y", "samples", "chans", "chan_count")
These correspond to the appropriate image function, eg. IM_GPIX() becomes i_gpix() or i_gpixf() as appropriate.
o IM_ADAPT_COLORS("dest_channels", "src_channels", "colors", "count")
Call i_adapt_colors() or i_adapt_fcolors().
o IM_FILL_COMBINE("fill") - retrieve the combine function from a fill object.
o IM_FILL_FILLER("fill") - retrieve the fill_with_* function from a fill object.
o IM_SAMPLE_MAX - maximum value for a sample
o IM_SAMPLE_MAX2 - maximum value for a sample, squared
o IM_SAMPLE_T - type of a sample (i_sample_t or i_fsample_t)
o IM_COLOR - color type, either i_color or i_fcolor.
o IM_WORK_T - working sample type, either int or double.
o IM_Sf - format string for the sample type, "%d" or "%f".
o IM_Wf - format string for the work type, "%d" or "%f".
o IM_SUFFIX(identifier) - adds _8 or _double onto the end of identifier.
o IM_EIGHT_BIT - this is a macro defined only in 8-bit/sample code.
Other types, functions and values may be added in the future.
AUTHOR
Tony Cook <tonyc@cpan.org>
perl v5.14.2 2011-06-06 Imager::Preprocess(3pm)