Given a igraph object g , one way to get the node names is to write V g. While this will display the node names, you can't use it as a vector. To get a character vector of node names use get. Having gotten a vector node names, remember that many igraph functions will take a vertex id when specifying a vertex. But vertex id's start from 0. Thus if you use the index of the node name directly as a vertex id, it will be off by 1. You need to subtract 1. Node names are not automatically plotted. If you want to plot the names, simply type the following and then plot the graph. Share on.
Leaves display a remarkable range of forms, from flat sheets with simple outlines to cup-shaped traps. Although much progress has been made in understanding the mechanisms of planar leaf development, it is unclear whether similar or distinctive mechanisms underlie shape transformations during development of more complex curved forms. Here, we use 3D imaging and cellular and clonal analysis, combined with computational modelling, to analyse the development of cup-shaped traps of the carnivorous plant Utricularia gibba. We show that the transformation from a near-spherical form at early developmental stages to an oblate spheroid with a straightened ventral midline in the mature form can be accounted for by spatial variations in rates and orientations of growth. Different hypotheses regarding spatiotemporal control predict distinct patterns of cell shape and size, which were tested experimentally by quantifying cellular and clonal anisotropy. We propose that orientations of growth are specified by a proximodistal polarity field, similar to that hypothesised to account for Arabidopsis leaf development, except that in Utricularia , the field propagates through a highly curved tissue sheet. Independent evidence for the polarity field is provided by the orientation of glandular hairs on the inner surface of the trap. Taken together, our results show that morphogenesis of complex 3D leaf shapes can be accounted for by similar mechanisms to those for planar leaves, suggesting that simple modulations of a common growth framework underlie the shaping of a diverse range of morphologies. PLoS Biol 17 10 : e This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Given a igraph object g , one way to get the node names is to write V g. While this will display the node names, you can't use it as a vector. To get a character vector of node names use get. Having gotten a vector node names, remember that many igraph functions will take a vertex id when specifying a vertex.
But vertex id's start from 0. Thus if you use the index of the node name directly as a vertex id, it will be off by 1. You need to subtract 1. Node names are not automatically plotted. If you want to plot the names, simply type the following and then plot the graph. Share on. Edit History Tags Source. Create account or Sign in. How to edit pages? How to join this site? Site members Recent changes List all pages Page Tags Page tags assortativity bioinformatics community detection latex python r tikz tutorial visualization. This page contains the common catches when using the igraph R package.
Dealing with node names Given a igraph object g , one way to get the node names is to write V g. Souls Lore. Click here to edit contents of this page. Click here to toggle editing of individual sections of the page if possible. Watch headings for an "edit" link when available.
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