Samples from water used for irrigation were obtained from ten sampling points, randomly selected from a regular grid of 250 observation points covering the Xochimilco canal network, which had been set up for previous studies in the area [ 23].
And don't think you get to select from a menu or grid.
We selected a grid of threshold values, ranging from 0 to 75 μg/m in increments of 5 μg/m (i.e., 0, 5, 10, up to 75 μg/m).
Finally, customers select from an array of flavors.
We selected a grid of threshold values in increments of 5 μg/m from 0 to 35 μg/m for PM2.5, and from 0 to 20 μg/m for PM2.5 10 (i.e., 0, 5, 10 …μg/m).
Each gradient was generated from a grid of 0.5 mm by 0.5 mm pixels.
As before, these were selected from a pool of candidate fragments – all 50×50 pixel fragments of a class X object on a dense grid.
The trees were randomly selected from a map with a grid and a table of random numbers, although trees far away from paths or in wet or hilly terrain were discarded and new trees selected, as access with the lift was restricted to paths or relatively dry and flat terrain.
She has been randomly selected from a list of addresses themselves randomly selected from a randomly selected postcode.
Our head model included 3005 solution points, selected from a 6×6×6 mm grid equally distributed within the gray matter.
