make_do_matrix: Make matrix of dissolved oxygen data
Description
Takes a given sample ID and converts the dissolved oxygen data in data(metadata) from long format into a matrix. This is useful for plotting using plot_column()
Usage
make_do_matrix(sampleID, field_data)
Arguments
sampleID
A regular expression used to select a group of samples
field_data
A dataset of DO profiles in long format. Column names must be the same as the metadata file provided with this package
Value
Returns matrix of DO data with depth in rows and date in columns
Details
Also fills in NA values with the average of the depth above and below the missing value. If the value is at the bottom of the water column, the second deepest is substituted.