London - Changes in basal body temperature in the menstrual cycle

More than 36000 cycles from 1 798 couples were collected in UK. Data were collected in order to make analysys for biometric research on changes in basal body temperature in the mestrual cycle.
The collected data are in three files:
1) london: with the registration of all cycles of length up to 100 days
2) anomalous: with the registration of the cycles of each woman for whom has been observed a length of more than 100 days
3) alletaev: with the information of the file london (but without records of daily basal temperature) and also some information about the history of the woman