Hello Igorians, I just finish procedure to split waves. Any comment is wellcome """"" Here is a part of the Help File * Splitting Waves (cliquez ici pour la Version Franaise) v1.0 Martin CANALS, 1996, CREGU email : canals@cregu.cnrs-nancy.fr adresse postale : BP 23, 54501 Vandoeuvre les Nancy Cedex, FRANCE Written for IgorPro 3.0. (Panels and DataFolders) Use this package to split waves in smallest waves. This is useful when you import data from a Database (like a Microsoft Excel sheet). Let us consider 3 waves hole Depth Temp iso1-1 100 150 iso1-2 120 170 iso1-3 150 200 iso2-1 90 120 iso2-2 110 150 iso2-3 130 165 fly1-1 120 100 fly1-2 150 120 fly1-3 170 130 ... If you want to plot with different symbols iso data and fly data, you must split the 3 waves in 6 smallest : hole_iso Depth_iso Temp_iso hole_fly Depth_fly Temp_fly iso1-1 100 150 fly1-1 120 100 iso1-2 120 170 fly1-2 150 120 iso1-3 150 200 fly1-3 170 130 iso2-1 90 120 iso2-2 110 150 iso2-3 130 65 Place the procedure file "splitting" in the User Procedures folder in Igor Pro and then insert the following line in the procedure window #include "splitting" The SplitWavesPanel is displayed by the splitWaves item in the Data Folder Limitation : splitting is made only by reference to Text Waves, regarding the n characters from the left.( n= 1, ...,8) Martin CANALS CENTRE DE RECHERCHES EN GEOLOGIE DES MATIERES PREMIERES MINERALES ET ENERGETIQUES 3, rue du Bois de la Champelle 54500 Vandoeuvre Tel : (33) 03 83 44 19 00 Fax : (33) 03 83 44 00 29 e-mail : canals@cregu.cnrs-nancy.fr