keep_rm | R Documentation |
Using a character, or part of character select rows or columns of the data frame to either keep or remove. A more customizable way to subset your data as you can keep or remove based on partial matches, or cells containing select characters.
keep_rm( data, values, select, keep = TRUE, drop_levels = TRUE, exact = TRUE, colname )
data |
A data frame. |
values |
A vector containing the characters or parts of characters to base selection off of. |
select |
If |
keep |
If |
drop_levels |
If |
exact |
If |
colname |
If |
A data frame containing new selection of data.
# create data frame Sites <- as.factor(c("One", "One", "One", "Two", "Two", "Three")) Transect <- as.factor(c("1-Deep", "1-Shallow", "2-Shallow", "1-Shallow", "1-Deep", "1-Deep")) Acropora.sp <- c(0.1, 0.6, 0.4, 0.9, 0.2, 0.5) Gardineroseris.sp <- c(0.4, 0.9, 0.5, 0.23, 0.5, NA) Psammocora.sp <- c(0.9, 0.6, 0.5, 0.8, 0.1, 0.4) Leptastrea.sp <- c(0.5, 0.7, 0.4, 0.8, 0.2, NA) Notes <- c(NA, NA, "saw octopus", NA, "white balance corrected", NA) coral_cover <- data.frame(Sites, Transect, Acropora.sp, Gardineroseris.sp, Psammocora.sp, Leptastrea.sp, Notes) #Removing Notes column keep_rm(data = coral_cover, values = c("Notes") , select = "col", keep = FALSE, drop_levels = FALSE, exact = TRUE) #Selecting site One and dropping extra levels Site_One <- keep_rm(data = coral_cover, values = c("One") , select = "row", keep = TRUE, drop_levels = TRUE, exact = TRUE, "Sites") levels(Site_One$Sites) #Removing Deep sites Shallow_Sites <- keep_rm(data = coral_cover, values = c("-Shallow") , select ="row", keep = FALSE, drop_levels = TRUE, exact = FALSE, "Transect") #Selecting only species data Species <- keep_rm(data = coral_cover, values = c(".sp") , select ="col", keep = TRUE, drop_levels = TRUE, exact = FALSE)
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