Description Usage Arguments Examples
Implementation of a proposal to quantify the differences between disease
progress curves of different data sets. In a nutshell, the method can be
divided into several steps. First, a reference data set must be chosen and a
model is fitted to it. Then for each other data set, the points are moved
along the x-axis (time axis), under some constraints, until the fitted model
match as well as possible the reference model. The relative movements of the
points are totally captured by two parameters, a and b, which correspond to
the translation and "streching" parameters. Use sigmoflex_helper
for a
visual interpretation of a and b.
1 2 3 | sigmoflex(data, reference, ..., threads = 1)
sigmoflex_helper()
|
data |
A data frame with 3 columns in the following order: the labels of the data sets, the dates of the records, and the observation values (only on a 0-1 scale at the moment). |
reference |
The label of the reference data set (a character string). |
... |
Additional arguments to be passed to other methods. |
threads |
Number of threads to perform the computations. |
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