Khalid, what you can do is to note how much the higher energy (at energy E1) feature is shifted from what you think it should be (let's say by the amount of D eV), provided that you fixed the lower energy point to what you wanted (say, E0). Then, you should transfer the data into a spreadsheet and apply linear scaling: E --> E0 + (E-E0)*D It will ensure that in the range between E0 and E1 the data are linearly stretched or compressed, depending on the sign of D. Anatoly = _____ From: Khalid, Syed [mailto:khalid@bnl.gov] Sent: Monday, September 08, 2008 12:21 PM To: ifeffit@millenia.cars.aps.anl.gov Subject: [Ifeffit] enrgy-axis-expansion Is it possible in Athena to change the y-axis (energy scale) at two different energy points of an EXAFS scan? I have a Ni foil spectrum as a function of time. The edge can be set at 8333.0 eV, and I want to to assign higher energy to a known feature in the Ni scan. Syed Khalid 725D, National Synchrotron Light Source Brookhaven National Laboratory Upton, NY 11973 Ph: 631-344-7496 FAX: 631-344-3238 e-mail: khalid@bnl.gov _______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit