Parse the isotope data frame produced by build.isotopeframe if the input data is in mean/standard deviation form.
● Data Source:
CranContrib
● Keywords:
● Alias: parse.isotopeframe
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Given two data frames, one containing isotopic measurements from some predator species, and another containing isotopic measurements from a collection of prey species, return num.samples samples of discrimination factors from predators to prey.
● Data Source:
CranContrib
● Keywords:
● Alias: estimate.shiftvec
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Build a convex hull of the data in a data frame using convhulln.
● Data Source:
CranContrib
● Keywords:
● Alias: build.normalhull
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Solve the linear system of inequalities given by construct.linearsys using lpSolve.
● Data Source:
CranContrib
● Keywords:
● Alias: isotopesolve
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Visualize the output of estimate.shiftvec if the data has only two isotope measurements.
● Data Source:
CranContrib
● Keywords:
● Alias: heatmap.samples
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Construct a linear system of inequalities from the predator and prey isotopic data for input to lpSolve.
● Data Source:
CranContrib
● Keywords:
● Alias: construct.linearsys
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Given a collection of predator and prey isotopic measurements, produce the average discrimination factors between the two sets of measurements.
● Data Source:
CranContrib
● Keywords:
● Alias: shift.mean
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Given local filenames leading to tab-delimited files of isotope values, read in the values from the file and store them in a dataframe.
● Data Source:
CranContrib
● Keywords:
● Alias: build.isotopeframe
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Construct a stacked list of values from a data frame containing multiple prey types. Used for creating input to convhulln.
● Data Source:
CranContrib
● Keywords:
● Alias: build.hull.list
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providing 
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