I have a CSV file that looks like
0,0,0,0,1,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0
10,11,7,0,4,12,2,3,7,0,11,3,12,4,0,5,5,4,5,0,8,6,12,0,9,3,3,0,2,7,8
19,11,7,0,4,14,16,10,8,2,13,7,15,6,0,76,6,4,10,0,18,10,17,1,11,3,3,0,9,9,8... (7 Replies)
Hi all,
I am new to shell scripting and wanna calculate the mean and standard deviation using shell programming.
I have a file with letters that are repeating and their corresponding duration
a 0.32
a 0.89
aa 0.34
aa 0.23
au 0.012
au 0.26... (4 Replies)
Hi all,
I want to calculate the standard deviation for a column (happens to be column 3).
Does any know of simple awk script to do this?
Thanks (1 Reply)
Hi all,
I need to find the standard deviation of each column of a dataset below for each hour. The data is given in 5 second intervals as shown below
DATE TIME FRAC_DAYS_SINCE_JAN1 FRAC_HRS_SINCE_JAN1 EPOCH_TIME ... (11 Replies)
I have a file with say 50 columns, each containing a whole lot of data.
Each column contains data from a separate simulation, but each simulation is related to the data in the last (REFERENCE) column $50
I need to calculate the RMS deviation for each data line, i.e. column 1 relative to... (12 Replies)
Hi All,
I want someone to modify the below script from this forum so that it can be used for all columns in the file( instead of only printing column 3 mean and standard deviation values). I don't know how to loop around all the columns.
... (3 Replies)
Hi,
I have a file containing 100,000 rows-by-120 columns and I need to compute for the standard deviation for each row. Any idea on how to calculate row-wise standard deviation using awk? My sample data looks like this:
input data:
23 35 12 25 16 17 18 19 29 12
12 26 15 14 15 23 12 12... (2 Replies)
Hello there,
I found an elegant solution to computing average values from multiple text files
awk '{for (i=1;i<=NF;i++){if ($i!~"n/a"){a+=$i}else{b++}}}END{for (i=1;i<=FNR;i++){for (j=1;j<=NF;j++){printf (a/(3-b))((b>0)?"~"b" ":" ")};printf "\n"}}' file1 file2 file3
I tried to modify... (2 Replies)
I have a file that looks that this:
820 890 530
1650 1600 1800
1850 1900 2270
1640 2300 1670
2080 2200 2350
1150 1630 2210
I would like to output the mean and standard deviation of each row so that my final output would look like this
820 890 530 746.667 155.849
1650 1600 1800... (5 Replies)
Hello Team,
I am using the following awk script to calculate the SMA (Single Moving Average) for an specific period but now I would like to include the standard deviation output.
Could you please help me to modify this awk shell script
awk -F, -v points=5 ' { a = $2; ... (4 Replies)
Discussion started by: csierra
4 Replies
LEARN ABOUT DEBIAN
cmtk-average_images
average_images(1) The Computational Morphometry Toolkit average_images(1)NAME
average_images - Average images
SYNOPSIS
average_images [options] image0 ...
DESCRIPTION
This tool computes pixelwiase average, variance, standard deviation, z-score, or entropy images from a list of user-provided intensity
images.
OPTIONS
Global Toolkit Options (these are shared by all CMTK tools)
--help
Write list of basic command line options to standard output.
--help-all
Write complete list of basic and advanced command line options to standard output.
--wiki
Write list of command line options to standard output in MediaWiki markup.
--man
Write man page source in 'nroff' markup to standard output.
--version
Write toolkit version to standard output.
--echo
Write the current command line to standard output.
--verbose-level <integer>
Set verbosity level.
--verbose, -v
Increment verbosity level by 1 (deprecated; supported for backward compatibility).
--threads <integer>
Set maximum number of parallel threads (for POSIX threads and OpenMP).
Main Options
--mode
Mode of averaging operation Supported values: "avg", "var", "stdev", "zscore", "entropy", where the default is "avg", or use one of
the following:
--avg
Compute average (i.e., mean) image [This is the default]
--var
Compute variance image
--stdev
Compute standard deviation image
--zscore
Compute z-score image
--entropy
Compute pixel-by-pixel population entropy image
Data Preprocessing
--log, -l
Apply log to input data
--abs, -a
Use absolute input values
--normalize-mean-stdev, -n
Normalize image intensities using means and standard deviations
--set-padding-value <double>
Define padding value in input images [Default: disabled]
Output Options
--outfile-name <string>, -o <string>
Output file name [Default: average.nii ]
--type
Scalar data type of output image. Supported values: "float", "double", where the default is "float", or use one of the following:
--float
Single-precision float. [This is the default]
--double
Double-precision float.
AUTHORS
Torsten Rohlfing, with contributions from Michael P. Hasak, Greg Jefferis, Calvin R. Maurer, and Daniel B. Russakoff
LICENSE
http://www.fsf.org/licensing/licenses/gpl.html
BUGS
Report bugs at http://nitrc.org/projects/cmtk/
ACKNOWLEDGMENTS
From April 2009 through September 2011, CMTK Development and Maintenance was supported by the National Institute of Biomedical Imaging and
Bioengineering under Grant No.R01 EB008381 (PI: Torsten Rohlfing).
CMTK 2.2.2 Jul 20 2012 average_images(1)