DataCodes

There are several challenges when using satellite data across large areas: multiple tiles or “scenes” make up the study area, and clouds, haze, and other atmospheric factors will render pixels unusable.

The following code can be copied into R and ran as the function “PlanetToNDVI”. You can change the band math and function name to produce any index you wish, or a single band.

What is difference between OLS and MLE? OLS and MLE both estimate a model made up of parameter estimates that describes the relationship between two or more variables. Most of time we are interested in a point estimates, or the mean impacts of some random variable X on outcome Y in the population, and the uncertainty around its mean (often referred to as Greek betas, sigma, etc.

Similar to the Planet workflow. In this test case, I downloaded 1/3 arc second DEMs from the USGS NED (in Maricopa), keep them in a folder, wrote a function in R to mosaic whatever is in that folder, then join to properties.