3. HydroGrow LED SOL-6. The SOL-6 is a 300 watt grow light comprised of 50W integrated LED chips and square fusion reflectors. This light, though it consumes only 300W of electricity, has a PAR output that matches 600W HPS lights.
The average true range is an N-day smoothed moving average (SMMA) of the true range values.Wilder recommended a 14-period smoothing.he range of a day's trading is simply. The true range extends it to yesterday's closing price if it was outside of today's range. The true range is the largest of the: 1  Most recent period's high minus the most recent period's low. 2  Absolute value of the most recent period's high minus the previous close.
Statisticians use summary measures to describe the amount of variability or spread in a set of data. The most common measures of variability are the range, the interquartile range (IQR), variance, and standard deviation. View Video Lesson The Range. The range is the difference between the largest and smallest values in a set of values. For example, consider the following numbers: 1, 3, 4, 5, 5, 6, 7, 11. For this set of numbers, the range would be 11 - 1 or 10. The Interquartile Range (IQR) The interquartile range (IQR) is a measure of variability, based on dividing a data set into quartiles. Quartiles divide a rank-ordered data set into four equal parts. The values that divide each part are called the first, second, and third quartiles; and they are denoted by Q1, Q2, and Q3, respectively. 1  Q1 is the middle value in the first half of the rank-ordered data set. 2  Q2 is the median value in the set. 3  Q3 is the middle value in the second half of the rank-ordered data set.