diff --git a/main.py b/main.py
index 0f57563..a5d252f 100755
--- a/main.py
+++ b/main.py
@@ -1,5 +1,16 @@
 #!/usr/bin/env python
 
+"""
+Author: Kristiāns Francis Cagulis, kc22015
+Date: 25.12.2023.
+Github: https://github.com/kristoferssolo/LU-Data-Visualisation
+Dependencies: matplotlib, numpy, pandas, loguru, openpyxl
+
+This script generates two plots from Excel files and saves them to a PDF file.
+Excel files can be stored in the same directory as this script or in a subdirectory called "data".
+"""
+
+
 import platform
 import subprocess
 from pathlib import Path
@@ -11,14 +22,6 @@ from loguru import logger
 from matplotlib.backends.backend_pdf import PdfPages
 
 
-logger.add(
-    Path("logs", "data.log"),
-    format="{time} | {level} | {message}",
-    level="INFO",
-    rotation="1 MB",
-    compression="zip",
-)
-
 BASE_PATH = Path(__file__).parent
 WIND_GUSTS_FILENAME = "vejaAtrumsBrazmas.xlsx"
 WIND_SPEED_FILENAME = "vejaAtrumsFaktiskais.xlsx"
@@ -29,6 +32,15 @@ BLUE = "#1f77b4"
 ORANGE = "#ff7f0e"
 BLACK = "#000000"
 
+# Setup logger
+logger.add(
+    BASE_PATH.joinpath("logs", "data.log"),
+    format="{time} | {level} | {message}",
+    level="INFO",
+    rotation="1 MB",
+    compression="zip",
+)
+
 
 def read_data(filename: str) -> pd.DataFrame:
     """
diff --git a/plots.pdf b/plots.pdf
index 7af32c9..713703f 100644
Binary files a/plots.pdf and b/plots.pdf differ
diff --git a/pyproject.toml b/pyproject.toml
index b8dfbc2..c23f186 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,10 +7,11 @@ readme = "README.md"
 requires-python = ">=3.11"
 license = { text = "MIT" }
 dependencies = [
-  "openpyxl==3.1.2",
-  "loguru==0.7.2",
-  "matplotlib==3.8.2",
-  "pandas==2.1.4",
+    "openpyxl==3.1.2",
+    "loguru==0.7.2",
+    "numpy==1.26.2",
+    "matplotlib==3.8.2",
+    "pandas==2.1.4",
 ]
 
 [tool.mypy]
diff --git a/requirements.txt b/requirements.txt
index 0009c58..5f52693 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
-attrs>=23.1.0
 loguru>=0.7.2
 matplotlib>=3.8.2
+numpy>=1.26.2
 openpyxl>=3.1.2
 pandas>=2.1.4