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# Path Configuration
from tools.preprocess import *
# Processing context
trait = "Stroke"
cohort = "GSE161533"
# Input paths
in_trait_dir = "../DATA/GEO/Stroke"
in_cohort_dir = "../DATA/GEO/Stroke/GSE161533"
# Output paths
out_data_file = "./output/preprocess/3/Stroke/GSE161533.csv"
out_gene_data_file = "./output/preprocess/3/Stroke/gene_data/GSE161533.csv"
out_clinical_data_file = "./output/preprocess/3/Stroke/clinical_data/GSE161533.csv"
json_path = "./output/preprocess/3/Stroke/cohort_info.json"
# Get file paths
soft_file, matrix_file = geo_get_relevant_filepaths(in_cohort_dir)
# Extract background info and clinical data
background_info, clinical_data = get_background_and_clinical_data(matrix_file)
# Get unique values per clinical feature
sample_characteristics = get_unique_values_by_row(clinical_data)
# Print background info
print("Dataset Background Information:")
print(f"{background_info}\n")
# Print sample characteristics
print("Sample Characteristics:")
for feature, values in sample_characteristics.items():
print(f"Feature: {feature}")
print(f"Values: {values}\n")
# 1. Gene Expression Data Availability
# Dataset uses Affymetrix Gene Chip U133, which contains gene expression data
is_gene_available = True
# 2. Variable Availability and Keys
# Trait (Stroke) can be inferred from disease history (feature 6) - look for 'Cerebral infarction'
trait_row = 6
# Age is in feature 2
age_row = 2
# Gender is in feature 3
gender_row = 3
# 2.2 Data Type Conversion Functions
def convert_trait(x):
if pd.isna(x):
return None
value = x.split(': ')[1].strip().lower()
# Convert 'Cerebral infarction' to 1, others to 0
if 'cerebral infarction' in value:
return 1
return 0
def convert_age(x):
if pd.isna(x):
return None
try:
# Extract number after colon
age = int(x.split(': ')[1])
return age
except:
return None
def convert_gender(x):
if pd.isna(x):
return None
value = x.split(': ')[1].strip().lower()
if value == 'female':
return 0
elif value == 'male':
return 1
return None
# 3. Save Metadata
is_trait_available = trait_row is not None
validate_and_save_cohort_info(is_final=False,
cohort=cohort,
info_path=json_path,
is_gene_available=is_gene_available,
is_trait_available=is_trait_available)
# 4. Clinical Feature Extraction
if trait_row is not None:
clinical_features = 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 the extracted features
preview = preview_df(clinical_features)
print("Preview of clinical features:")
print(preview)
# Save to CSV
clinical_features.to_csv(out_clinical_data_file)
# Get file paths
soft_file, matrix_file = geo_get_relevant_filepaths(in_cohort_dir)
# Extract gene expression data from matrix file
gene_data = get_genetic_data(matrix_file)
# Print first 20 row IDs and shape of data to help debug
print("Shape of gene expression data:", gene_data.shape)
print("\nFirst few rows of data:")
print(gene_data.head())
print("\nFirst 20 gene/probe identifiers:")
print(gene_data.index[:20])
# Inspect a snippet of raw file to verify identifier format
import gzip
with gzip.open(matrix_file, 'rt', encoding='utf-8') as f:
lines = []
for i, line in enumerate(f):
if "!series_matrix_table_begin" in line:
# Get the next 5 lines after the marker
for _ in range(5):
lines.append(next(f).strip())
break
print("\nFirst few lines after matrix marker in raw file:")
for line in lines:
print(line)
requires_gene_mapping = True
# Extract gene annotation data
gene_metadata = get_gene_annotation(soft_file)
# Preview annotation data
print("Gene annotation preview:")
print(preview_df(gene_metadata))
# Extract mapping between probe IDs and gene symbols
mapping_data = get_gene_mapping(gene_metadata, prob_col='ID', gene_col='Gene Symbol')
# Use previously loaded gene expression data
gene_data = apply_gene_mapping(gene_data, mapping_data)
# Save preprocessed gene expression data
gene_data.to_csv(out_gene_data_file)
# 1. Normalize gene symbols
gene_data = normalize_gene_symbols_in_index(gene_data)
gene_data.to_csv(out_gene_data_file)
# 2. Link clinical and genetic data
linked_data = geo_link_clinical_genetic_data(clinical_features, gene_data)
# 3. Handle missing values
linked_data = handle_missing_values(linked_data, trait)
# 4. Check for bias
trait_biased, linked_data = judge_and_remove_biased_features(linked_data, trait)
# 5. Validate and save cohort info
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=trait_biased,
df=linked_data,
note="Study examining transcriptome profiles in lung transplantation."
)
# 6. Save if usable
if is_usable:
linked_data.to_csv(out_data_file) |