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POSet color for segments in ggnet
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copied!<p>I hvar the following data set:</p> <pre><code>structure(c(2L, 6L, 2L, 6L, 7L, 7L, 2L, 7L, 6L, 8L, 8L, 4L, 8L, 2L, 9L, 8L, 7L, 6L, 9L, 1L, 9L, 4L, 9L, 3L, 2L, 10L, 9L, 10L, 8L, 10L, 7L, 6L, 10L, 1L, 2L, 12L, 9L, 8L, 12L, 1L, 11L, 10L, 2L, 44L, 79L, 10L, 8L, 47L, 45L, 51L, 9L, 11L, 74L, 75L, 77L, 69L, 75L, 77L, 78L, 2L, 44L, 44L, 46L, 46L, 8L, 6L, 1L, 1L, 6L, 7L, 1L, 4L, 7L, 8L, 8L, 1L, 4L, 8L, 3L, 8L, 8L, 9L, 9L, 9L, 1L, 9L, 5L, 9L, 3L, 9L, 9L, 9L, 10L, 8L, 10L, 7L, 10L, 10L, 1L, 10L, 10L, 9L, 12L, 12L, 1L, 12L, 12L, 12L, 12L, 7L, 7L, 44L, 44L, 44L, 44L, 44L, 44L, 44L, 44L, 44L, 44L, 7L, 7L, 7L, 7L, 44L, 10L, 9L, 42L, 43L, 46L, 46L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, -1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, -1L, 1L, 1L, 1L, -1L, -1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, -1L), .Dim = c(66L, 3L), .Dimnames = list(NULL, c("from", "to", "impact"))) </code></pre> <p>The data set indicates, a connection between from and to with a positive (1) or negative (-1) impact.</p> <p>I would like to plot a network graph with ggnet (or ggplot2) that plot this graph.</p> <p>So far I have done the following steps:</p> <pre><code>library(network) library(ggplot2) library(ggnet) library(grid) net <- network(df2[,c(1,2)], directed = FALSE) ggnet(net, mode = 'kamadakawai', size = 6, alpha = .5, label.nodes=F, segment.alpha = 0.5, color = "black") + theme(legend.position = "none") + theme(plot.margin = unit(c(0.1,0.1,0.1,0.1), "cm")) </code></pre> <p>This lead to this result: <img src="https://i.stack.imgur.com/ObPTc.png" alt="enter image description here"></p> <p>I am wondering how to colorize the edges based on the impact in the dataset (1 = green and -1 = red). I am also wondering why there are so many unconnected nodes...</p> <p>Can someone help me with this?</p> <p>Thanks a lot.</p>

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