getFuncMaxed | R Documentation |
getFuncMaxed
the number of functions greater than or equal to a single threshold in one experimental unit
getFuncMaxed( adf, vars = NA, thresh = 0.7, proportion = FALSE, prepend = "Diversity", maxN = 1 )
adf |
A data frame with functions. |
vars |
The column names of the functions to be assessed. |
thresh |
The threshold value to assess. |
proportion |
Whether the output will be returned as a proportion of all functions. Defaults to |
prepend |
Additional columns that will be imported from the data for the returned data frame. |
maxN |
As a 'maximum' value can be subject to outliers, etc., what number of the highest data points for a function will be used to calculate the value against which thresholds will be judged. E.g., if maxN=1 then all thresholds are proportions of the largest value measured for a function. If maxN=8, then it's the proportion of the mean of the highest 8 measurements. |
Create a data frame that has the value of number or proportion of functions greater than a single threshold.
Returns a data frame of number or fraction of functions greater than or equal to the selected thresholds in each plot.
Jarrett Byrnes.
data(all_biodepth) allVars <- qw(biomassY3, root3, N.g.m2, light3, N.Soil, wood3, cotton3) germany <- subset(all_biodepth, all_biodepth$location == "Germany") vars <- whichVars(germany, allVars) # re-normalize N.Soil so that everything is on the same # sign-scale (e.g. the maximum level of a function is # the "best" function) germany$N.Soil <- -1 * germany$N.Soil + max(germany$N.Soil, na.rm = TRUE) germanyThresh <- getFuncMaxed(germany, vars, thresh = 0.5, prepend = c("plot", "Diversity"), maxN = 7) # A function that will return a data frame with the first several columns # being information the user wants for identification purposes (prepend) # which defaults to Diversity and the final column the number of columns # which pass a predefined threshold, defined as some proportion of the maximim # observed for each column. vars=the names of the vars being specified # thresh is the threshold, between 0 and 1, of proportion of the max that needs # to be passed to be counted. # changelog # 2014-03-24 Fixed -1 error in getMaxValue # 2015-06-24 Fixed column name from prepend error https://github.com/jebyrnes/multifunc/issues/1 # 2022-04-14 Updated to use dplyr
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