diff --git a/pres/log b/pres/log
index 750e9a8..1c385ad 100644
--- a/pres/log
+++ b/pres/log
@@ -8,3 +8,12 @@ mostly read papers
 
 Week 2:
 Given calibration data in the form of light curves produced by a known transfer function
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+Did things, forgot to keep track
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+
+A script has been created to read an output file from psdlag and then plot the source and reprocessed power spectral densities, the cross-correlation power spectral density, and the phase difference between the signals.
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+scripts/power_lag_plot.pl
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+