<b>Momocs</b>: Outline Analysis Using<i>R</i>

Bonhomme, Vincent; Picq, Sandrine; Gaucherel, Cédric; Julien, Claude

doi:10.18637/jss.v056.i13

Cited by 490 publications

(477 citation statements)

References 38 publications

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“…As a programming language designed for statistics and data visualization, R has the advantage of providing access to many more methods than commercial software packages such as Excel and SPSS. This is due to its status as the lingua franca for academic statisticians (Morandat, Hill, Osvald, & Vitek, 2012;Narasimhan & others, 2005;Widemann, Bolz, & Grelck, 2013), which means that R is the development environment for many recently developed algorithms found in journals (Bonhomme, Picq, Gaucherel, & Claude, 2014;eg. D. N. Reshef et al, 2011), and these algorithms are readily available for archaeologists and others to use.…”

Section: Discussionmentioning

confidence: 99%

Computational Reproducibility in Archaeological Research: Basic Principles and a Case Study of Their Implementation

Marwick

2016

J Archaeol Method Theory

185

111

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The use of computers and complex software is pervasive in archaeology, yet their role in the analytical pipeline is rarely exposed for other researchers to inspect or reuse. This limits the progress of archaeology because researchers cannot easily reproduce each other's work to verify or extend it. Four general principles of reproducible research that have emerged in other fields are presented. An archaeological case study is described that shows how each principle can be implemented using freely available software. The costs and benefits of implementing reproducible research are assessed. The primary benefit, of sharing data in particular, is increased impact via an increased number of citations. The primary cost is the additional time required to enhance reproducibility, although the exact amount is difficult to quantify. bmarwick@uw.edu AbstractThe use of computers and complex software is pervasive in archaeology, yet their role in the analytical pipeline is rarely exposed for other researchers to inspect or reuse. This limits the progress of archaeology because researchers cannot easily reproduce each other's work to verify or extend it. Four general principles of reproducible research that have emerged in other fields are presented. An archaeological case study is described that shows how each principle can be implemented using freely available software. The costs and benefits of implementing reproducible research are assessed. The primary benefit, of sharing data in particular, is increased impact via an increased number of citations. The primary cost is the additional time required to enhance reproducibility, although the exact amount is difficult to quantify.

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Section: Discussionmentioning

confidence: 99%

Computational Reproducibility in Archaeological Research: Basic Principles and a Case Study of Their Implementation

Marwick

2016

J Archaeol Method Theory

185

111

View full text Add to dashboard Cite

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“…Elliptical Fourier transforms turned the grain shapes into quantitative variables that were further treated using classical multivariate approaches, mainly ordination and classification. All calculations and analyses were accomplished using the R environment (R Development Core Team, 2015) and the modern morphometrics package Momocs (Bonhomme, 2015;Bonhomme et al, 2014). Linear discriminant analyses were performed with the MASS package (Venables and Ripley, 2015).…”

Section: Methodsmentioning

confidence: 99%

The first shoots of a modern morphometrics approach to the origins of agriculture

et al. 2016

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“…En cada contorno se distribuyeron 100 puntos equidistantes a partir del programa TPSdig2 (Rohlf 2006), que fueron la base para la estimación de las armónicas. Los archivos de puntos fueron procesados mediante el programa Momocs 1.0.0 (Bonhomme et al 2014) de R (R Development Core Team 2009) en donde se realizó, previamente, la estandarización de los contornos en base a la primer armónica. Esta estandarización remueve la información relativa al tamaño, posición y rotación de cada ejemplar, de manera tal que se preserva sólo aquella relativa a la forma.…”

Section: Análisis Estadísticos Variables Cuantitativasunclassified

Análisis tecno-morfológico, morfométrico y de materias primas de los esferoides líticos de la costa del Golfo San Matías (Río Negro, Argentina)

Albertí

Cardillo

2016

Rev. Mus. Antrop.

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Resumen En este trabajo se presenta una caracterización inicial de la muestra de bolas líticas recuperadas en la costa rionegrina del golfo San Matías, en sitios fechados en el Holoceno medio y tardío. Con este fin se aplicaron distintos métodos de análisis métrico, morfométrico (análisis de forma) y de materias primas, así como de caracterización tecnomorfológica de los artefactos. Los resultados indican la existencia de dos grandes grupos de bolas: uno conformado por artefactos de tamaño mediano-pequeño de contorno irregular, tendientes a una forma cuadrangular y con una vista lateral plana; y otro de artefactos de forma más esférica y de tamaño mayor. Asimismo fue posible constatar un uso predominantemente local de rocas para la manufactura de estos instrumentos, lo cual habría incidido en las diferencias de peso que fueron detectadas entre los instrumentos recuperados en ambas porciones de la costa rionegrina (norte y oeste). Por último, la presencia de marcas de formatización en la mayor parte de la muestra y la baja presencia de piezas con pulido en toda su superficie indicarían una baja inversión de energía puesta en la manufactura de los instrumentos.Palabras clave: bolas líticas; golfo San Matías; análisis morfométricos; materias primas. AbstractIn this paper we present an initial characterization of the sample of bolas recovered in archaeological sites located at San Matías Gulf coast (Río Negro province) dated in the Middle and Late Holocene. For this purpose different methods of metric, morphometric (shape analysis) and raw materials analyses, as well as a techno-morphological characterization of the artifacts, were applied. The results indicate the existence of two large groups of bolas: one is integrated by artifacts of medium-small size and irregular outline, which tend to a quadrangular shape with a flat side view; and other group of artifacts which are larger and with a more spherical shape. It was also possible to establish the use of mainly local raw materials for the manufacture of these instruments, which would have affected the weight differences we detected between the bolas recovered in both portions of the coast (North and West). Finally, the presence of formatization traces in most of the sample and the low presence of pieces with polish over their entire surfaces, would indicate a low investment of energy put into the final manufacture of these artifacts.

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Momocs: Outline Analysis UsingR

Cited by 490 publications

References 38 publications

Computational Reproducibility in Archaeological Research: Basic Principles and a Case Study of Their Implementation

Computational Reproducibility in Archaeological Research: Basic Principles and a Case Study of Their Implementation

The first shoots of a modern morphometrics approach to the origins of agriculture

Análisis tecno-morfológico, morfométrico y de materias primas de los esferoides líticos de la costa del Golfo San Matías (Río Negro, Argentina)

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