Changelog Period04 Version 1.2.0

  • Interoperability with applications of the Virtual Observatory:

    In the new version of Period04 the PLASTIC protocol was replaced with the SAMP protocol.

  • Period04 now includes a tool to check for combination frequencies and harmonics:

    You can activate this tool in Menu 'Configure > Fourier Settings'. The acceptable offset in frequency is chosen by the user taking into account the frequency resolution in the given data set.

  • Batch processing introduced

    Since version 1.2.0 Period04 also supports batch processing. So you can start Period04 from the command line and do different operations defined a batch file. The following batch file is an example that shows you the options that can be currently invoked from a batch file: 
    import tou data.dat
#
# import  
#
# file-format string should be composed from the following letters:
#    t ... time
#    o ... observed
#    a ... adjusted
#    c ... calculated
#    w ... point weight 
#    u ... point error
#    r ... residuals(observed)
#    R ... residuals(adjusted)
#    1 ... attribute #1
#    2 ... attribute #2
#    3 ... attribute #3
#    4 ... attribute #4
#    5 ... weight(attribute #1)
#    6 ... weight(attribute #2)
#    7 ... weight(attribute #3)
#    8 ... weight(attribute #4)
#    i ... ignore
#
# note: 
#    if you import point errors/weights ('u', 'w') the weights 
#    will be automatically activated for use in calculations!
#

fourier 0 nyq o y
#
# fourier    
#         
#      ... any number
#        ... any number or 'nyq' (=computes spectrum up to Nyquist freq)
#      ... choose one of these letters:
#                o ... observed
#                a ... adjusted
#                r ... residuals(observed)
#                R ... residuals(adjusted)
#                1 ... spectral window 1
#                2 ... spectral window 2
#      ... choose y or n
#

fit o 1
fit o 2
#
# fit  
#
#      ... choose one of these letters:
#                o ... observed
#                a ... adjusted
#      ... calculation mode
#     	     	 1 ... improve amplitudes & phases
#     	     	 2 ... improve frequencies, amplitudes & phases
#

# find and prewhiten second frequency:
fourier 0 nyq r y
fit o 1
fit o 2

# find and prewhiten third frequency:
fourier 0 nyq r y
fit o 1
fit o 2

    To start Period04 using a batch file 'batch.bat', type 
    period04 -batch=batch.bat
    More options will become available upon request.