parse_fce_logs.py

# This function parses the logs of the FCE class
def parse_fce_logs(filename):
    f = open(filename, "r")
    path_indices = list()
    relative_cross_validation_error = list()
    q_squares = list()
    for line in f:
        tokens = line.split(" ")
        if len(tokens) > 0:
            sub_tokens = tokens[0].split("=")
            if sub_tokens[0] == "subbasis":
                validation_error = float(tokens[2].split("=")[1].split(",")[0])
                relative_cross_validation_error.append(validation_error)
                q_squares.append(1.0 - validation_error)
        # Available only if LARS(True)
        if len(tokens) > 1:
            sub_tokens = tokens[2].split("=")
            if sub_tokens[0] == "predictor":
                index = int(sub_tokens[1])
                path_indices.append(index)
    f.close()
    return path_indices, relative_cross_validation_error, q_squares