diff --git a/Distribution.png b/results/Distribution.png
similarity index 100%
rename from Distribution.png
rename to results/Distribution.png
diff --git a/sgs/__init__.py b/sgs/__init__.py
index 841b1ea..c3ae322 100644
--- a/sgs/__init__.py
+++ b/sgs/__init__.py
@@ -1,4 +1,4 @@
 import sgs.api
 import sgs.calculations
 
-__version__ = '1.0.1'
+__version__ = '1.0.2'
diff --git a/sgs/calculations.py b/sgs/calculations.py
index 8080a26..9310048 100644
--- a/sgs/calculations.py
+++ b/sgs/calculations.py
@@ -124,6 +124,7 @@ def calc_col_stats(col: np.ndarray) -> Statistics:
     :param col: Input column (tested on 1D array)
     :return: Statistics
     """
+    col = col[~numpy.isnan(col)]
     q1 = np.quantile(col, 0.25)
     q3 = np.quantile(col, 0.75)
     return Statistics(
@@ -147,4 +148,4 @@ def calculate_freq_statistics(arr: np.ndarray) -> FrequencyStats:
     """
     result = [calc_col_stats(arr[:, i]) for i in range(0, 4)]
 
-    return FrequencyStats(*result)
\ No newline at end of file
+    return FrequencyStats(*result)