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David Firth

9 packages On CRAN since Apr 2001 (25 years) · last active 8 years ago 0000-0003-0302-2312

Downloads

753.1K

Last 30 days

2.8M

Last 90 days

10.4M

Last year

Average trend: -21.9% (30d vs prior 30d)

Top Packages by Downloads

car
446.3K
MASS
158.7K
expm
67.2K
effects
34.8K
qvcalc
16.8K
gnm
8K
vcdExtra
6.7K

Portfolio Check Status

Aggregate CRAN check results across 1 maintained package.

13

OK

Recent Activity

vcdExtra updated v0.9.6 Jun 7, 2026

'vcd' Extensions and Additions

PlackettLuce updated v0.4.5 Mar 25, 2026

Plackett-Luce Models for Rankings

vcdExtra updated v0.9.3 Mar 18, 2026

'vcd' Extensions and Additions

BradleyTerry2 new v1.1.3 Mar 10, 2026

Bradley-Terry Models

MASS new v7.3-65 Mar 10, 2026

Support Functions and Datasets for Venables and Ripley's MASS

PlackettLuce new v0.4.4 Mar 10, 2026

Plackett-Luce Models for Rankings

car new v3.1-5 Mar 10, 2026

Companion to Applied Regression

effects new v4.2-5 Mar 10, 2026

Effect Displays for Linear, Generalized Linear, and Other Models

expm new v1.0-0 Mar 10, 2026

Matrix Exponential, Log, 'etc'

gnm new v1.1-5 Mar 10, 2026

Generalized Nonlinear Models

Maintained Packages

1 package

Package Version
qvcalc 1.0.4

Co-authored Packages

3 packages

Package Version
BradleyTerry2 1.1.3
gnm 1.1-5
PlackettLuce 0.4.5

Contributions

5 packages

Package Version
car 3.1-5
MASS 7.3-65
expm 1.0-0
effects 4.2-5
vcdExtra 0.9.6