This is the command h5totxt that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
h5totxt - generate comma-delimited text from 2d slices of HDF5 files
SYNOPSIS
h5totxt [OPTION]... [HDF5FILE]...
DESCRIPTION
h5totxt is a utility to generate comma-delimited text (and similar formats) from one-,
two-, or more-dimensional slices of numeric datasets in HDF5 files. This way, the data
can easily be imported into spreadsheets and similar programs for analysis and
visualization.
HDF5 is a free, portable binary format and supporting library developed by the National
Center for Supercomputing Applications at the University of Illinois in Urbana-Champaign.
A single h5 file can contain multiple data sets; by default, h5totxt takes the first
dataset, but this can be changed via the -d option, or by using the syntax
HDF5FILE:DATASET.
By default, the entire dataset is dumped to the output. in row-major order. For 3d
datasets, this corresponds to a sequence of yz slices, in order of increasing x, separated
by blank lines. If -T is specified, outputs in the transposed (column-major) order
instead
Often, however, you want only a one- or two-dimensional slice of multi-dimensional data.
To do this, you specify coordinates in one or more slice dimensions, via the -xyzt
options.
The most basic usage is something like ´h5totxt foo.h5´, which will output comma-delimited
text to stdout from the data in foo.h5.
OPTIONS
-h Display help on the command-line options and usage.
-V Print the version number and copyright info for h5totxt.
-v Verbose output.
-o file
Send text output to file rather than to stdout (the default).
-s sep Use the string sep to separate columns of the output rather than a comma (the
default).
-x ix, -y iy, -z iz, -t it
This tells h5totxt to use a particular slice of a multi-dimensional dataset. e.g.
-x causes a yz plane (of a 3d dataset) to be used, at an x index of ix (where the
indices run from zero to one less than the maximum index in that direction). Here,
x/y/z correspond to the first/second/third dimensions of the HDF5 dataset. The -t
option specifies a slice in the last dimension, whichever that might be. See also
the -0 option to shift the origin of the x/y/z slice coordinates to the dataset
center.
-0 Shift the origin of the x/y/z slice coordinates to the dataset center, so that e.g.
-0 -x 0 (or more compactly -0x0) returns the central x plane of the dataset instead
of the edge x plane. (-t coordinates are not affected.)
-T Transpose the data (interchange the dimension ordering). By default, no
transposition is done.
-. numdigits
Output numdigits digits after the decimal point (defaults to 16).
-d name
Use dataset name from the input files; otherwise, the first dataset from each file
is used. Alternatively, use the syntax HDF5FILE:DATASET, which allows you to
specify a different dataset for each file. You can use the h5ls command (included
with hdf5) to find the names of datasets within a file.
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