cum_lag

helpful function to cumulate 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

cum_lag function

<dl><dt>x</dt>
<dd>numeric vector for which lag variable should be computed</dd>
<dt>n_lag</dt>
<dd>size of lag window</dd></dl>

Arguments

cum_lag — cum_lag

<dl>

<dt>x</dt>
<dd>numeric vector for which lag variable should be computed</dd>


<dt>n_lag</dt>
<dd>size of lag window</dd>

</dl>

cum_lag: cum_lag

Description

Usage

Value

Arguments