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Dear R-help community, I am creating my first R-package in RStudio and wanted to add datasets to the package. I added an .RData file containing data (a data frame) in the 'data' folder of the package and could...
I have two vectors (a and b) with counts of animals and wanted to calculate fisher's alpha: library(vegan) a <- c(2043, 1258, 52, 1867, 107, 1624, 2, 157, 210, 402, 5, 107, 267, 2, 13683) b <- c(2043...
Dear all, I have two data frames (df1 and df2) and for each timepoint in df1 I want to know: is it whithin any of the timespans in df2? The result (e.g. "no" or "yes" or 0 and 1...
Dear experts, I have 5 environmental predictors and abundance data (300 samples, 60 species, transformation: log(x + min(x,x > 0) and use the function 'gradientForest' to estimate (R?-weighted) predictor importance (regression trees). The resulting predictor importance in decreasing...
Dear R-experts, I'd like to avoid the use of very slow 'for'-loops but I don't know how. My data look as follows (the original data has 1600 rows and 30 columns): # data example c1 <- c(1...
Dear R-experts, I have a regular grid dataframe (here: the first 50 rows) : # data frame (regular grid) with x, y (UTM-coordinates) and z (depth) # x=UTM coordinates (easting, zone 32) # y=UTM coordinates (northing, zone 32) # z=river...
# Dear R-experts, # (Once again) I want to avoid the usage of for-loops but unfortunately I don't know how. # I know functions like e.g. 'apply' but don't know how to use them for the solution of...
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