Data analysis
network analysis
RSiena is a package for the R language that enables the statistical analysis of network data, including longitudinal network data, longitudinal data of networks and behavior, and cross-sectional network data. It provides the same functionality available in SIENA (Simulation Investigation for Empirical Network Analysis), Windows software which is no longer maintained.

Text mining
r
This package allows users to train topic models in MALLET and load results directly into R.

Data analysis,

Visualization
images,

standard deviation,

mean,

image entropy,

histogram
CulturalAnalytics is an R package containing functions for statistical analysis and plotting of image properties, including statistics such as the standard deviation and mean in the RGB and HSV color spaces, image entropy and histograms in greyscale (intensity) and color, and for plotting color clouds and image scatter charts.

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If using R directly involves a too-steep learning curve, GUI-based options for R are available, like RStudio.