diff --git a/grain_size_tools/DATA/data_set.txt b/grain_size_tools/DATA/data_set.txt
index dc073e2..81c2539 100644
--- a/grain_size_tools/DATA/data_set.txt
+++ b/grain_size_tools/DATA/data_set.txt
@@ -1,4 +1,4 @@
- 	Area	Circ.	Feret	FeretX	FeretY	FeretAngle	MinFeret	AR	Round	Solidity
+ 	Area	Circ	Feret	FeretX	FeretY	FeretAngle	MinFeret	AR	Round	Solidity
 1	157.250	0.680	18.062	1535.000	0.500	131.634	13.500	1.101	0.908	0.937
 2	2059.750	0.771	62.097	753.500	16.500	165.069	46.697	1.314	0.761	0.972
 3	1961.500	0.842	57.871	727.000	65.000	71.878	46.923	1.139	0.878	0.972
diff --git a/grain_size_tools/DATA/dataset.csv b/grain_size_tools/DATA/dataset.csv
index d8b4ff5..36c1cce 100644
--- a/grain_size_tools/DATA/dataset.csv
+++ b/grain_size_tools/DATA/dataset.csv
@@ -1,4 +1,4 @@
-Area;Circ.;Feret;FeretX;FeretY;FeretAngle;MinFeret;AR;Round;Solidity
+Area;Circ;Feret;FeretX;FeretY;FeretAngle;MinFeret;AR;Round;Solidity
 157250;680;18062;1535000;500;131634;13500;1101;908;937
 2059750;771;62097;753500;16500;165069;46697;1314;761;972
 1961500;842;57871;727000;65000;71878;46923;1139;878;972