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# Path Configuration
from tools.preprocess import *
# Processing context
trait = "Arrhythmia"
# Input paths
tcga_root_dir = "../DATA/TCGA"
# Output paths
out_data_file = "./output/preprocess/3/Arrhythmia/TCGA.csv"
out_gene_data_file = "./output/preprocess/3/Arrhythmia/gene_data/TCGA.csv"
out_clinical_data_file = "./output/preprocess/3/Arrhythmia/clinical_data/TCGA.csv"
json_path = "./output/preprocess/3/Arrhythmia/cohort_info.json"
# TCGA-THCA (Thyroid Cancer) is most relevant for arrhythmia as thyroid dysfunction
# often causes cardiac arrhythmias
# Set cohort directory
cohort_dir = os.path.join(tcga_root_dir, "TCGA_Thyroid_Cancer_(THCA)")
# Get clinical and genetic file paths
clinical_file_path, genetic_file_path = tcga_get_relevant_filepaths(cohort_dir)
# Load data
clinical_df = pd.read_csv(clinical_file_path, index_col=0, sep='\t')
genetic_df = pd.read_csv(genetic_file_path, index_col=0, sep='\t')
# Print clinical columns for analysis
print("Clinical data columns:")
print(clinical_df.columns.tolist())
# 1. Identify candidate columns
candidate_age_cols = ['age_at_initial_pathologic_diagnosis', 'days_to_birth']
candidate_gender_cols = ['gender']
# Print the identified columns
print("Candidate age columns:", candidate_age_cols)
print("Candidate gender columns:", candidate_gender_cols)
# Select suitable columns for age and gender
age_col = 'age_at_initial_pathologic_diagnosis'
gender_col = 'gender'
# Print selected columns
print(f"Selected age column: {age_col}")
print(f"Selected gender column: {gender_col}")
# 1. Extract and standardize clinical features
# Create trait labels from sample IDs (01-09: tumor=1, 10-19: normal=0)
clinical_features = tcga_select_clinical_features(
clinical_df,
trait=trait,
age_col='age_at_initial_pathologic_diagnosis',
gender_col='gender'
)
# Save clinical data
os.makedirs(os.path.dirname(out_clinical_data_file), exist_ok=True)
clinical_features.to_csv(out_clinical_data_file)
# 2. Normalize gene symbols and save
normalized_gene_df = normalize_gene_symbols_in_index(genetic_df)
os.makedirs(os.path.dirname(out_gene_data_file), exist_ok=True)
normalized_gene_df.to_csv(out_gene_data_file)
# 3. Link clinical and genetic data on sample IDs
linked_data = pd.merge(
clinical_features,
normalized_gene_df.T,
left_index=True,
right_index=True,
how='inner'
)
# 4. Handle missing values systematically
linked_data = handle_missing_values(linked_data, trait)
# 5. Check for bias in trait and demographic features
trait_biased, linked_data = judge_and_remove_biased_features(linked_data, trait)
# 6. Validate data quality and save cohort info
note = "Contains molecular data from tumor and normal samples with patient demographics."
is_usable = validate_and_save_cohort_info(
is_final=True,
cohort="TCGA",
info_path=json_path,
is_gene_available=True,
is_trait_available=True,
is_biased=trait_biased,
df=linked_data,
note=note
)
# 7. Save linked data if usable
if is_usable:
os.makedirs(os.path.dirname(out_data_file), exist_ok=True)
linked_data.to_csv(out_data_file)