Mosaic plot in R.
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The document provides instructions for visualizing categorical data using mosaic plots with examples in R, utilizing the 'vcd' library. It includes sample code for creating mosaic plots for various datasets, such as 'haireyecolor' and 'titanic', while demonstrating the use of shading and legends. References to additional resources for further learning about mosaic plots are also included.
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![Example:
> fm <- loglin(HairEyeColor, list(1, 2, 3))
2 iterations: deviation 5.684342e-14
> pchisq(fm$pearson, fm$df, lower.tail = FALSE)
[1] 5.320872e-23
> mosaicplot(HairEyeColor, shade = TRUE, margin = list(1:2, 3))](https://image.slidesharecdn.com/mosaicplot-161007201008/85/Mosaic-plot-in-R-6-320.jpg)
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Mosaic plot in R.
- 1. Prepared by Volkan OBAN Visualizing Categorical Data Mosaic Plots:
- 2. Example: mat <- matrix(c(120,230,84,70,130,83,13,26,18),3) dimnames(mat) <- list(c("good","fair","poor"),c("a","b","c")) mat a b c good 120 70 13 fair 230 130 26 poor 84 83 18 library(vcd) mosaic(mat, shade=TRUE)
- 3. Example: > library(vcd) > assoc(HairEyeColor, shade=TRUE)
- 4. Example: > library(vcd) > mosaic(HairEyeColor, shade=TRUE, legend=TRUE)
- 5. Example: >library(vcd) > require(stats) > mosaicplot(Titanic, main = "Survival on the Titanic", color = TRUE)
- 6. Example: > fm <- loglin(HairEyeColor, list(1, 2, 3)) 2 iterations: deviation 5.684342e-14 > pchisq(fm$pearson, fm$df, lower.tail = FALSE) [1] 5.320872e-23 > mosaicplot(HairEyeColor, shade = TRUE, margin = list(1:2, 3))
- 7. Example > data(Titanic) > > mosaicplot(Titanic,main = "Survival on the Titanic",col = hcl(c(240, 120) ),off = c(5, 5, 5, 5))
- 8. Example: > data(UCBAdmissions) > > mosaicplot(UCBAdmissions, sort = 3:1,col = hcl(c(120, 10)),main = "Studen t admissions at UC Berkeley") Ref: https://www.stat.auckland.ac.nz/~ihaka/120/Lectures/lecture17.pdf http://www.statmethods.net/advgraphs/mosaic.html https://stat.ethz.ch/R-manual/R-devel/library/graphics/html/mosaicplot.html