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na.omit.somecols <- function(data, noNAsInTheseCols, allOutputCols = names(data)) { | |
# usage: na.omit.somecols(my_dataframe, c("col1", "col2")). You can also supply a vector of names (allOutputCols) if you just want certain columns returned. | |
completeVec <- complete.cases(data[, noNAsInTheseCols]) | |
return(data[completeVec, allOutputCols]) | |
} |
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query_higher_taxa_classes <- function(species_list, known = "genus", order = c("dataframe", "unique_sp")) { | |
# Pass in a character vector of species, genera, families, or whatever (the search is flexible) | |
# Returns a dataframe with the columns: query, db, family, order, subdivision | |
# The dataframe returned is guaranteed to be in the same order as the species list passed in if order is "dataframe" | |
order = match.arg(order) | |
library(taxize) | |
library(plyr) | |
species_list = sub("^([^ ]*).*$","\\1",species_list) # just take the top level name before the space | |
# remove short names that clog the taxon query - replace later |
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# Thanks to Forrest Stevens. Some of the code here borrowed from him here: https://github.com/ForrestStevens/Scratch/blob/master/swath_slices.R | |
library(raster) | |
library(rgdal) | |
library(sp) | |
library(rgeos) | |
library(gtools) | |
library(ggplot2) | |
library(plyr) | |
library(zoo) |
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# We often fit LMM/GLMM's with scaled variables. However, making predictions using those models isn't straightforward (at least to me!) | |
# It turns out that you have to re-scale your prediction data using the same parameters used to scale your original data frame used to fit the model | |
# See below, and pay special attention to the section where the new data are rescaled. | |
library(lme4) | |
library(VGAM) | |
reps = 3000 | |
dbh = rexp(reps); dbh = dbh/max(dbh) * 100 |
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contr.sum.keepnames <- function(...) { | |
# make deviation contrasts that don't lose the names of the factors in the model results | |
# from https://stackoverflow.com/questions/10808853/why-does-changing-contrast-type-change-row-labels-in-r-lm-summary | |
conS <- contr.sum(...) | |
colnames(conS) = rownames(conS)[-length(rownames(conS))] | |
conS | |
} | |
set_dev_contrasts <- function(df, colname = "site") { | |
# Set contrasts to "deviation coding" so site effects are as compared to overall mean across all sites. I.e., sites together should have a mean 0 effect. |
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unscale <- function(scaled, scale, center) { | |
# provide either scale & center, or a scaled vector with the proper attributes | |
if (missing(scale) | missing(center)) { | |
stopifnot( c("scaled:center", "scaled:scale") %in% names(attributes(scaled)) ) | |
scale = attr(scaled, "scaled:scale") | |
center = attr(scaled, "scaled:center") | |
attr(scaled, "scaled:scale") <- NULL | |
attr(scaled, "scaled:center") <- NULL | |
} | |
unscaled = scaled * scale + center |