# Description of the data presented in each column of file: achybrid_signal_and_preference.txt [1] song.id - individual identifier that corresponds to the file name of the recording from which signal features were measured [2] sex - sex of the individual [3] class - hybrid (or control) cross type of individual [4] class2 - same as above [5] detailed - more detailed hybrid cross type that is explicit in terms of the F1 directional cross (AC vs. CA) identity of the hybrid, or one of the parents; applicable only to F1 or backcross [6] measured - number of signals within a recording that were measured to obtain the following three temporal signal features [7] alike - mean period of agilis-like volleys (sec) [8] clike - mean period of carnea-like volleys (sec) [9] delta - difference in period between first and last volley of each measured signal (sec) [10] ln.alike - natural log transformed alike (zeros substituted with 0.5 times the minimum non-zero value) [11] ln.clike - natural log transformed clike (zeros substituted with 0.5 times the minimum non-zero value) [12] ln.delta - natural log transformed delta [13] raw.PC1 - principal component 1 (PC1) of raw signal features, used for comparison to PC1 of log transformed signal features [14] PC1 - PC1 of log transformed signal features [15] PC2 - PC2 of log transformed signal features [16] PC3 - PC3 of log transformed signal features [17] config - identifier for the configuration file used during playback experiment [18] playback.pref - most preferred playback signal based on bayespref individual model prediction [19] log.pref - PC1 of log transformed playback signal indicated in previous column (playback.pref) [20] pred.similar - PC1 of log transformed playback signal that is predicted to be preferred if mate preference were based on signal similarity [21] pred.type - PC1 of log transformed playback signal that is predicted to be preferred if mate preference were based on inherited preference loci