p3/preprocess/Glucocorticoid_Sensitivity/code/GSE32962.py

# Path Configuration
from tools.preprocess import *

# Processing context
trait = "Glucocorticoid_Sensitivity"
cohort = "GSE32962"

# Input paths
in_trait_dir = "../DATA/GEO/Glucocorticoid_Sensitivity"
in_cohort_dir = "../DATA/GEO/Glucocorticoid_Sensitivity/GSE32962"

# Output paths
out_data_file = "./output/preprocess/3/Glucocorticoid_Sensitivity/GSE32962.csv"
out_gene_data_file = "./output/preprocess/3/Glucocorticoid_Sensitivity/gene_data/GSE32962.csv"
out_clinical_data_file = "./output/preprocess/3/Glucocorticoid_Sensitivity/clinical_data/GSE32962.csv"
json_path = "./output/preprocess/3/Glucocorticoid_Sensitivity/cohort_info.json"

# Get relevant file paths
soft_file_path, matrix_file_path = geo_get_relevant_filepaths(in_cohort_dir)

# Extract background info and clinical data from the matrix file
background_info, clinical_data = get_background_and_clinical_data(matrix_file_path)

# Get dictionary of unique values per row in clinical data
unique_values_dict = get_unique_values_by_row(clinical_data)

# Print background info
print("Background Information:")
print("-" * 50)
print(background_info)
print("\n")

# Print clinical data unique values
print("Sample Characteristics:")
print("-" * 50)
for row, values in unique_values_dict.items():
    print(f"{row}:")
    print(f"  {values}")
    print()
# 1. Gene Expression Data Availability
# Based on series title and summary mentioning expression profiles, this is gene expression data
is_gene_available = True

# 2.1. Data Availability
# Trait (prednisolone sensitivity) is in row 4
trait_row = 4

# Age info only indicates <1 year for all samples, so constant 
age_row = None 

# Gender info not available
gender_row = None

# 2.2. Data Type Conversion Functions
def convert_trait(value: str) -> int:
    """Convert prednisolone sensitivity to binary (0=sensitive, 1=resistant)"""
    if not value or ':' not in value:
        return None
    value = value.split(':')[1].strip().lower()
    if 'resistant' in value:
        return 1
    elif 'sensitive' in value:
        return 0
    return None

def convert_age(value: str) -> float:
    """Not used but defined for completeness"""
    return None

def convert_gender(value: str) -> int:
    """Not used but defined for completeness"""
    return None

# 3. Save metadata
validate_and_save_cohort_info(
    is_final=False,
    cohort=cohort,
    info_path=json_path,
    is_gene_available=is_gene_available,
    is_trait_available=(trait_row is not None)
)

# 4. Extract clinical features
clinical_df = geo_select_clinical_features(
    clinical_df=clinical_data,
    trait=trait,
    trait_row=trait_row,
    convert_trait=convert_trait,
    age_row=age_row,
    convert_age=convert_age,
    gender_row=gender_row,
    convert_gender=convert_gender
)

# Preview data
preview = preview_df(clinical_df)
print(preview)

# Save clinical data
os.makedirs(os.path.dirname(out_clinical_data_file), exist_ok=True)
clinical_df.to_csv(out_clinical_data_file)
# Extract gene expression data
genetic_data = get_genetic_data(matrix_file_path)

# Print first 20 probe IDs
print("First 20 probe IDs:")
print(genetic_data.index[:20])
# These identifiers are Affymetrix probe IDs (e.g. '1007_s_at'), not gene symbols
# They need to be mapped to standardized gene symbols for analysis
requires_gene_mapping = True
# Extract gene annotation from SOFT file
gene_annotation = get_gene_annotation(soft_file_path)

# Preview column names and first few values
preview_dict = preview_df(gene_annotation)
print("Column names and preview values:")
for col, values in preview_dict.items():
    print(f"\n{col}:")
    print(values)
# Get gene mapping from annotation data
# 'ID' column contains probe IDs matching genetic_data index
# 'Gene Symbol' column contains gene symbols
mapping_data = get_gene_mapping(gene_annotation, 'ID', 'Gene Symbol')

# Apply gene mapping to convert probe data to gene data 
gene_data = apply_gene_mapping(genetic_data, mapping_data)

# Verify gene data format
print("\nFirst 5 genes and their first 3 expression values:")
print(gene_data.iloc[:5, :3])
# 1. Normalize gene symbols and save normalized gene data
normalized_gene_data = normalize_gene_symbols_in_index(gene_data)
os.makedirs(os.path.dirname(out_gene_data_file), exist_ok=True)
normalized_gene_data.to_csv(out_gene_data_file)

# Read the processed clinical data file 
clinical_df = pd.read_csv(out_clinical_data_file, index_col=0)

# Link clinical and genetic data using the normalized gene data
linked_data = geo_link_clinical_genetic_data(clinical_df, normalized_gene_data)

# Handle missing values systematically
linked_data = handle_missing_values(linked_data, trait)

# Detect bias in trait and demographic features, remove biased demographic features
is_biased, linked_data = judge_and_remove_biased_features(linked_data, trait)

# Validate data quality and save cohort info
note = "Gene expression data from glucocorticoid sensitivity study."
is_usable = validate_and_save_cohort_info(
    is_final=True,
    cohort=cohort,
    info_path=json_path,
    is_gene_available=True,
    is_trait_available=True,
    is_biased=is_biased,
    df=linked_data,
    note=note
)

# 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)
else:
    print(f"Dataset {cohort} did not pass quality validation and will not be saved.")