Time Values in Eureqa:
Eureqa can only store date and time values as numeric values (e.g. total seconds or total days). Therefore, you need to pick a reference point to measure a time duration from, and units to measure the time duration.For example, you could convert a time value “8:31 am” to 8.52 total hours since midnight. Similarly for dates, you could convert a date like “Dec. 6, 1981 8:31 am” to 81.9 total years since 1900.
You need to make date and time conversions to numeric duration values in another program like Excel before entering into Eureqa (see below for example).
2) Avoid measuring time durations from a very distant reference point. For example, if you’re data uses time values that span a few days, do not convert these time values to total seconds since the beginning of the century. The numeric values would be enormous and numerically unstable.
Instead, the best practice is to measure a time duration since the time point in your data set.
Many programs can convert date and time values to numeric time duration values. In Excel, if you subtract two date cells, the result is the fractional number of days between the two dates. You could then convert days to hours or some other unit to get numeric values with reasonable numeric magnitudes. For example: