Peter E. DeWitt, Ph.D.

JAMIA Open Cover

medicalcoder published in JAMIA Open

news
R
medicalcoder
publications
I’m happy to share that our paper describing medicalcoder has been published in JAMIA Open:
Sep 24, 2026
Peter E. DeWitt

medicalcoder: A Unified and Longitudinally Aware Framework for ICD-Based Comorbidity Assessment in R

news
R
medicalcoder
pediatrics
comorbidities
My R package medicalcoder was updated to version 0.8.0 and released on CRAN.
Feb 28, 2026
Peter E. DeWitt

phoenix R package and Python Module

news
R
sepsis
python
sql
Earlier this year I published an R package, Python module, and example SQL code for implementing the Phoenix sepsis criteria.
Oct 2, 2024
Peter E. DeWitt
 

Site Rebuild

news
Rebuilding the site
Oct 1, 2024
Peter E. DeWitt

Induction into Delta Omega

news
awards
public health
I have been inducted into the Delta Omega Honorary Society in Public Health as an Alumni Member.
May 22, 2024
Peter E. DeWitt
 

A New Era For Diagnosis and Research in Pediatric Sepsis

news
publications
sepsis
Two major publications in the Journal of the American Medical Association (JAMA) have been released International Consensus Criteria for Pediatric Sepsis and Septic Shock and …
Jan 21, 2024
Peter E. DeWitt
 

Installing Package Dependencies without external http(s) requests

R
programming
package development
Consider you have a server that is running behind a firewall and, for security reasons, cannot make external http(s) requests. Further, you have R running on this server and…
Feb 25, 2018
 

Strother Walker Award

awards
news
The faculty of the Department of Biostatistics and Informatics has awarded me the 2017 Strother Walker Award based on outstanding work on your dissertation, and your many…
Apr 21, 2017
Peter DeWitt
 

Ph.D. Dissertation Defended

phd
news
cpr
I have successfully defended my Ph.D. dissertation: “Parsimonious B-Spline Regression Models via Control Polygon and Control Net Reduction for Identifying Factors Explaining…
Apr 10, 2017
 

git diff pdfs

git
Binary files and git repositories can be a pain, especially when looking at the git diff output. Here are two helpful things to do with git to make working with .pdfs less…
Apr 3, 2017
Peter DeWitt

10th International Conference on Health Informatics

news
abstract
conferences
I presented a paper at the 10th International Conference on Health Informatics in Porto Portugal, Feb 21-23, 2017. HealthInf is part of BIOSTEC.
Feb 24, 2017
 

(lazy)Loading Cached Chunks into an Interactive R Session

R
knitr
cache
qwraps2
If you cache code chunks when using knitr to generate reproducible documents then you’ve likely had the issue arrise of needing to load the results of cached chunks into an…
Jan 3, 2017
Peter DeWitt
 

Baseline Characteristics Tables with qwraps2

R
data summaries
qwraps2
Almost every biomedical research paper requires a “Table 1: baseline patient characteristics.” Many developers have published tools to help streamline the construction of…
Dec 19, 2016

Secondary Axis in ggplot2 v2.2.0

R
programming
ggplot2
phd
The recent release of Hadley Wickham’s ggplot2 version 2.2.0 included several new features. Notably
Nov 15, 2016
 

Updating Call Arguments

R
programming
The stats::update function is one of my favorite tools in R. Using this function saves a lot of time and effort when needing to modify an object. However, this function has…
Nov 10, 2016
 

dewittpe.github.io Set up

news
I’ve spent the last several hours of yesterday this early morning putting the initial dewittpe.github.io page together. I hope you, the wandering web surfer, or the…
Oct 26, 2016

The 28th International Biometric Conference

Best Student Oral Presentation
abstract
conferences
awards
cpr
phd
news
The International Biometric Society (IBS) held the 28th International Biometric Conference 10-15 July, 2016 in Victoria, British Columbia, Canada. I had submitted my some of…
Jul 16, 2016
Peter E. DeWitt
No matching items