Description Usage Arguments Details Value Author(s) Examples
This function takes a specific kind of input dataframe and outputs a dataframe with mass density at the specified scale. It's partly-generalized, check the analysis '.Rmd's for information on which parameters were passed for the final analysis.
1 | CalculateBioDensity(data, frame.size, scale = "tube")
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data |
Input dataframe. See 'details'. |
frame.size |
Size of MMR picture frame. See 'details'. |
scale |
Scale of return data. |
tube.length |
Length of tube, in meters? Probably? |
max.frames |
Maximum number of frames possible from equipment. |
data
currently requires several columns:
veg_type
is one of 'shrub', 'tree', or 'grass', and used in biovolume
to biomass conversions.
plot
is the first-order spatial organization - must be a factor.
date
is the date of the measurement, must be class "Date" or coercible.
frame.size
is a length-3 (or 2) numeric vector describing the [1]== height,
[2]== width, and [3]==depth of the MMR pictures. If length 2, depth will default
to the radius of the largest root in the dataset. Note that 'height' here is referring
to the dimension that runs the length of the MMR tube.
Returns a dataframe.
Brandon McNellis
1 | CalculateBioDensity(data = df, frame.size = c(1, 2, 3))
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