Skip to content
AS

Andrej-Nikolai Spiess

8 packages On CRAN since Aug 1977 (48 years) · last active 5 months ago 0000-0002-9630-4724

Downloads

72K

Last 30 days

269.2K

Last 90 days

1.1M

Last year

Average trend: -25.8% (30d vs prior 30d)

Top Packages by Downloads

dendextend
68.6K
qpcR
1.4K
chipPCR
573
propagate
563
RDML
244
MBmca
235
dpcR
225
PCRedux
209

Portfolio Check Status

Aggregate CRAN check results across 5 maintained packages.

4

NOTE

61

OK

Needs attention

Recent Activity

propagate updated v1.1-0 Feb 24, 2026

Propagation of Uncertainty

PCRedux updated v1.2-1 Nov 18, 2025

Quantitative Polymerase Chain Reaction (qPCR) Data Mining and Machine Learning Toolkit as Described in Burdukiewicz (2022) <doi:10.21105/Joss.04407>

RDML updated v1.1 Jul 22, 2025

Importing Real-Time Thermo Cycler (qPCR) Data from RDML Format Files

dendextend updated v1.19.1 Jul 14, 2025

Extending 'dendrogram' Functionality in R

dpcR updated v0.6 Jun 17, 2025

Digital PCR Analysis

PCRedux updated v1.2-0 Jun 12, 2025

Quantitative Polymerase Chain Reaction (qPCR) Data Mining and Machine Learning Toolkit as Described in Burdukiewicz (2022) <doi:10.21105/Joss.04407>

MBmca updated v1.1-0 Jun 10, 2025

Nucleic Acid Melting Curve Analysis

qpcR updated v1.4-2 Jun 9, 2025

Modelling and Analysis of Real-Time PCR Data

propagate updated v1.0-7 May 27, 2025

Propagation of Uncertainty

dendextend updated v1.19.0 Nov 14, 2024

Extending 'dendrogram' Functionality in R

Maintained Packages

5 packages

Package Version
qpcR 1.4-2
propagate 1.1-0
MBmca 1.1-0
dpcR 0.6
PCRedux 1.2-1

Co-authored Packages

1 package

Package Version
RDML 1.1

Contributions

2 packages

Package Version
dendextend 1.19.1
chipPCR 1.0-2