uniform handling of files (temporal files, overwrite, etc.) check when filename==output, so temp file is written. Always? nctools::ncdim_unlim: it failes when files are open? ncrcat is closing files?
check attributes are copied
consistent check for 'output' argument, specially removing if already in existence.
for nc_subset and related, check if something will be extracted, error otherwise. progress bar for nc_rcat and all functions
conversion from HDF4 (if hdf2nc installed.)
change dimension values
newfunctions:
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nc_sd
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nc_fivenums (save 5 variables, varid_mxx)
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group all them in one help page!
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add basic arithmetics?
nc_subset: example with depth=1 level.
check on regrid
How to use pipes: vectorize functions, return output file %>%
nco("ncrcat", files=files, output=, ...) ncks(...) = function(...) nco("ncks", ...)
input == output, check for --no_tmp_fl