diff --git a/samila/functions.py b/samila/functions.py
index d392289..fff21a2 100644
--- a/samila/functions.py
+++ b/samila/functions.py
@@ -3,7 +3,6 @@
 
 import requests
 from .params import Projection, DEFAULT_PROJECTION, VALID_COLORS, NFT_STORAGE_API, NFT_STORAGE_SUCCESS_MESSAGE, OVERVIEW
-import pickle
 
 
 def float_range(start, stop, step):
@@ -123,18 +122,17 @@ def samila_help():
     print("Repo : https://github.com/sepandhaghighi/samila")
 
 
-def isSimilarData(data, path2data, precision=10**-5):
+def isSameData(data1, data2, precision=10**-5):
     """
-    Compare the data is the same with given file.
+    Compare to data to be the same.
 
-    :param data: given data
-    :type data: list
-    :param path2data: comparing data path on storage
-    :type path2data: str
+    :param data1: given data1
+    :type data1: list
+    :param data2: given data2
+    :type data2: list
     :param precision: comparing precision
     :type precision: float
     :return: True if they are the same
     """
-    with open(path2data, "rb") as fp:
-        temp_data = pickle.load(fp)
-    return all(map(lambda x, y: abs(x - y) < precision, data, temp_data))
+    isSame = map(lambda x, y: abs(x - y) < precision, data1, data2)
+    return all(isSame)
diff --git a/test/function_test.py b/test/function_test.py
index 68998b6..91d859c 100644
--- a/test/function_test.py
+++ b/test/function_test.py
@@ -2,8 +2,9 @@
 """
 >>> import random
 >>> import math
+>>> import pickle
 >>> from samila import GenerativeImage, Projection
->>> from samila.functions import isSimilarData
+>>> from samila.functions import isSameData
 >>> import pickle
 >>> def f1(x,y):
 ...    result = random.uniform(-1,1) * x**2  - math.sin(y**2) + abs(y-x)
@@ -25,9 +26,13 @@ True
 >>> g.generate(seed=10, start=-2*math.pi, step=0.1, stop=math.pi/2)
 >>> g.seed
 10
->>> isSimilarData(g.data1, "test/test1_1_d1.pkl")
+>>> with open("test/test1_1_d1.pkl", "rb") as fp:
+...    temp_data = pickle.load(fp)
+>>> isSameData(g.data1, temp_data)
 True
->>> isSimilarData(g.data2, "test/test1_1_d2.pkl")
+>>> with open("test/test1_1_d2.pkl", "rb") as fp:
+...    temp_data = pickle.load(fp)
+>>> isSameData(g.data2, temp_data)
 True
 >>> g.plot()
 >>> g.plot(color='red')