expcorrectC

c++ function to compute exponential cumulation of information.

Using Electronic Health Record (EHR) is difficult because most of the time the true characteristic of the patient is not available. Instead we can retrieve the International Classification of Disease code related to the disease of interest or we can count the occurrence of the Unified Medical Language System. None of them is the true phenotype which needs chart review to identify. However chart review is time consuming and costly. 'PheVis' is an algorithm which is phenotyping (i.e identify a characteristic) at the visit level in an unsupervised fashion. It can be used for chronic or acute diseases. An example of how to use 'PheVis' is available in the vignette. Basically there are two functions that are to be used: `train_phevis()` which trains the algorithm and `test_phevis()` which get the predicted probabilities. The detailed method is described in preprint by Ferté et al. (2020) <doi:10.1101/2020.06.15.20131458>.

Thomas Ferte

PheVis

Automatic Phenotyping of Electronic Health Record at Visit
Resolution

Boris P. Hejblum

expcorrectC function

<dl><dt>mat</dt>
<dd>A matrix where each column is a variable to be cumulated.</dd>
<dt>diffdate</dt>
<dd>Number of days between each sojourn. NA for switch of patient and restart cumulation.</dd>
<dt>lambda</dt>
<dd>A double to set the exponential cumulation.</dd></dl>

Arguments

expcorrectC — expcorrectC

<dl>

<dt>mat</dt>
<dd>A matrix where each column is a variable to be cumulated.</dd>


<dt>diffdate</dt>
<dd>Number of days between each sojourn. NA for switch of patient and restart cumulation.</dd>


<dt>lambda</dt>
<dd>A double to set the exponential cumulation.</dd>

</dl>

expcorrectC: expcorrectC

Description

Usage

Value

Arguments

Details