1414from ..util import (
1515 check_types ,
1616 pandas_apply ,
17- _prep_samples_for_cohort_grouping ,
18- _build_cohorts_from_sample_grouping ,
19- _add_frequency_ci ,
17+ prep_samples_for_cohort_grouping ,
18+ build_cohorts_from_sample_grouping ,
19+ add_frequency_ci ,
2020)
2121from .snp_data import AnophelesSnpData
2222from .sample_metadata import locate_cohorts
@@ -439,7 +439,7 @@ def snp_allele_frequencies_advanced(
439439 )
440440
441441 # Prepare sample metadata for cohort grouping.
442- df_samples = _prep_samples_for_cohort_grouping (
442+ df_samples = prep_samples_for_cohort_grouping (
443443 df_samples = df_samples ,
444444 area_by = area_by ,
445445 period_by = period_by ,
@@ -449,7 +449,7 @@ def snp_allele_frequencies_advanced(
449449 group_samples_by_cohort = df_samples .groupby (["taxon" , "area" , "period" ])
450450
451451 # Build cohorts dataframe.
452- df_cohorts = _build_cohorts_from_sample_grouping (
452+ df_cohorts = build_cohorts_from_sample_grouping (
453453 group_samples_by_cohort = group_samples_by_cohort ,
454454 min_cohort_size = min_cohort_size ,
455455 )
@@ -603,7 +603,7 @@ def snp_allele_frequencies_advanced(
603603 ds_out = ds_out .isel (variants = loc_variants )
604604
605605 # Add confidence intervals.
606- _add_frequency_ci (ds = ds_out , ci_method = ci_method )
606+ add_frequency_ci (ds = ds_out , ci_method = ci_method )
607607
608608 # Tidy up display by sorting variables.
609609 sorted_vars : List [str ] = sorted ([str (k ) for k in ds_out .keys ()])
@@ -739,7 +739,7 @@ def aa_allele_frequencies_advanced(
739739 ds_aa_frq = ds_aa_frq .isel (variants = loc_variants )
740740
741741 # Compute new confidence intervals.
742- _add_frequency_ci (ds = ds_aa_frq , ci_method = ci_method )
742+ add_frequency_ci (ds = ds_aa_frq , ci_method = ci_method )
743743
744744 # Tidy up display by sorting variables.
745745 ds_aa_frq = ds_aa_frq [sorted (ds_aa_frq )]
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