fix indentation
add method to paths class to make spplate filename
add from_plate_mjd_fiber constructor to Target class. add get_combined_spectrum method to lookup single target spectrum
cache forest and continuum for targets in delta estimation
add program to plot forest of a target
check target_index is not None
adjust error bar
save delta field along lines of sight
compress delta field datasets
use single prec floats instead of compression
disable index check
add program to plot delta field
remove print statement
add counter
add counter
add max rows option
add view angle options
fix typo
uncomment projections
update default view angle args