add new analysis code
modify analysis code
for backup
modify analysis code
modify analyis code
new code to generate spectrogram & time domain plot
new code to generate GW channel  plot
add transfer function
modify analysis code to generate time domain plot and spectrogram of seismic noise channel and GW channel
add new analysis code to write the ANSII txt of calibrated spectrum
small fix
new code to generate low passed data
modify analysis code, 3 pattern  data size
add code to compare filtered data and raw data
small fix
small fix
small fix
test git
remove old file
new module including some function