function seems redundant with `calc_ccf_chunk()` with `calc_ccf_var = True`

[hematthi]

EchelleCCFs.jl/src/convenience/ccf_chunk.jl

Lines 108 to 137 in a639217

	""" `calc_ccf_and_var_chunk( chunk, ccf_plan )`
	Convenience function to compute CCF and variance of each "CCF pixel" for one chunk of spectrum, evaluated using mask_shape and line list from `ccf_plan`.
	# Inputs:
	- `ccf_out`: `AbstractArray` to store output
	- `ccf_var_out`: `AbstractArray` to store output
	- `chunk`: ChunkOfSpectrum to compute CCF for
	- `ccf_plan`: for now, just a BasicCCFPlan that provides line_list, mask_shape and other parameters for calculating CCF
	# Optional Arguments:
	- `var`: `AbstractArray` with variance to use for each pixel (overides value in chunk)
	`- `assume_sorted`: if true, skips checking the line_list is sorted by wavelength
	# Returns Named Tuple with:
	- `ccf_out`:
	- `ccf_var_out`:
	"""
	function calc_ccf_and_var_chunk(chunk::AbstractChunkOfSpectrum, plan::PlanT = BasicCCFPlan()
	; var::AbstractVector{T} = chunk.var, ccf_var_scale::Real = 1.0, Δfwhm::Real = 0,
	assume_sorted::Bool = false ) where { T<:Real, PlanT<:AbstractCCFPlan }
	@assert assume_sorted || issorted( plan.line_list.λ )
	if Δfwhm > 0
	this_plan_for_chunk = copy(plan)
	increase_mask_fwhm!(this_plan_for_chunk,Δfwhm)
	else
	this_plan_for_chunk = plan
	end
	len_v_grid = calc_length_ccf_v_grid(plan)
	ccf_out = zeros(len_v_grid)
	ccf_var_out = zeros(len_v_grid)
	calc_ccf_and_var_chunk!(ccf_out, ccf_var_out, chunk, this_plan_for_chunk, var=var, ccf_var_scale=ccf_var_scale, assume_sorted=true )
	return (ccf=ccf_out, ccf_var=ccf_var_out)
	end

Could replace everything in this function with one call to calc_ccf_chunk(...; ..., calc_ccf_var = True)