(between Balladonia Roadhouse and Norseman). The stretch of road between Caiguna Roadhouse and Balladonia Roadhouse is known as the 90-mile straight. It's the longest stretch of straight road in Australia, 146.6 km. of asphalt without a single curve! Towns east of Caiguna do not follow official Western Australian time.
We cannot order Social Security numbers in any meaningful way. Some people have Social Security numbers that start with a higher number than others but there is no meaningful difference signified by this. So the Social Security number is a nominal level variable. Any time that you arbitrarily assign a person or another entity an identification number, the resulting variable will be nominal because the numbers d4o not signify anything important or meaningful. On the other hand, interval level variables are ordered.
1 Answer 1. To use seasonal dummy variables, the period of seasonality must be an integer. When you convert a to a time series using as.ts(a), the period is set to 1/86400 (seconds in a day). So if you want to use seasonal dummy variables you will have to specify what the most appropriate period is first. For example, if you want to use a day-of-week seasonality, use. seasonaldummy(ts(a,f=7))