# Path Configuration from tools.preprocess import * # Processing context trait = "Cystic_Fibrosis" cohort = "GSE76347" # Input paths in_trait_dir = "../DATA/GEO/Cystic_Fibrosis" in_cohort_dir = "../DATA/GEO/Cystic_Fibrosis/GSE76347" # Output paths out_data_file = "./output/preprocess/1/Cystic_Fibrosis/GSE76347.csv" out_gene_data_file = "./output/preprocess/1/Cystic_Fibrosis/gene_data/GSE76347.csv" out_clinical_data_file = "./output/preprocess/1/Cystic_Fibrosis/clinical_data/GSE76347.csv" json_path = "./output/preprocess/1/Cystic_Fibrosis/cohort_info.json" # STEP1 from tools.preprocess import * # 1. Identify the paths to the SOFT file and the matrix file soft_file, matrix_file = geo_get_relevant_filepaths(in_cohort_dir) # 2. Read the matrix file to obtain background information and sample characteristics data background_prefixes = ['!Series_title', '!Series_summary', '!Series_overall_design'] clinical_prefixes = ['!Sample_geo_accession', '!Sample_characteristics_ch1'] background_info, clinical_data = get_background_and_clinical_data(matrix_file, background_prefixes, clinical_prefixes) # 3. Obtain the sample characteristics dictionary from the clinical dataframe sample_characteristics_dict = get_unique_values_by_row(clinical_data) # 4. Explicitly print out all the background information and the sample characteristics dictionary print("Background Information:") print(background_info) print("Sample Characteristics Dictionary:") print(sample_characteristics_dict) # 1. Determine if gene expression data is available is_gene_available = True # Microarray data is mentioned in the background # 2. Determine availability of trait, age, and gender # and define data conversion functions # From the sample characteristics dictionary, there is only one unique trait value ("CF"), # so it is effectively constant (not useful for association), thus not available. trait_row = None # No information about age or gender in the dictionary, so set them to None age_row = None gender_row = None # Define the data conversion functions def convert_trait(x: str): # Since trait_row is None, we won't actually use this, but defining for completeness parts = x.split(':', 1) if len(parts) < 2: return None val = parts[1].strip().lower() # If trait were variable, we'd map values accordingly, but it's constant in this dataset return None def convert_age(x: str): # Since age_row is None, we won't actually use this, but defining for completeness parts = x.split(':', 1) if len(parts) < 2: return None val = parts[1].strip().lower() # Normally, parse to a float/int if valid; otherwise None return None def convert_gender(x: str): # Since gender_row is None, we won't actually use this, but defining for completeness parts = x.split(':', 1) if len(parts) < 2: return None val = parts[1].strip().lower() # Typically, 'female' -> 0, 'male' -> 1; else None return None # 3. Save Metadata (initial filtering) is_trait_available = (trait_row is not None) is_usable = 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 # Only proceed if trait_row is available (not None), otherwise skip if trait_row is not None: selected_clinical_df = geo_select_clinical_features( 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 ) print("Preview of extracted clinical features:") print(preview_df(selected_clinical_df)) selected_clinical_df.to_csv(out_clinical_data_file) # STEP3 # 1. Use the get_genetic_data function from the library to get the gene_data from the matrix_file previously defined. gene_data = get_genetic_data(matrix_file) # 2. Print the first 20 row IDs (gene or probe identifiers) for future observation. print(gene_data.index[:20]) # Observing the IDs: they appear to be numeric probe identifiers (e.g., from an array platform). # These are not standard human gene symbols and likely need to be mapped to gene symbols. print("requires_gene_mapping = True") # STEP5 # 1. Use the 'get_gene_annotation' function from the library to get gene annotation data from the SOFT file. gene_annotation = get_gene_annotation(soft_file) # 2. Use the 'preview_df' function from the library to preview the data and print out the results. print("Gene annotation preview:") print(preview_df(gene_annotation)) # STEP: Gene Identifier Mapping # 1. Identify which columns correspond to the probe IDs and gene symbols in the annotation # - The "ID" column in gene_annotation matches the probe IDs in gene_data # - The "gene_assignment" column contains gene symbol information # 2. Get a gene mapping dataframe mapping_df = get_gene_mapping(gene_annotation, prob_col='ID', gene_col='gene_assignment') # 3. Convert probe-level measurements into gene expression data gene_data = apply_gene_mapping(gene_data, mapping_df) import os import pandas as pd # STEP 7 # 1) Normalize gene symbols in the obtained gene expression data normalized_gene_data = normalize_gene_symbols_in_index(gene_data) normalized_gene_data.to_csv(out_gene_data_file) # Since we have no trait data (trait_row was None), we skip linking clinical data, # missing value handling, bias checks, and final validation for this dataset. # The partial validation has already been done previously (is_final=False), indicating # that trait data is missing and thus the dataset is not usable for associative studies.