I am trying to create a simple social network of species and their interactions with other species. I have cleaned and coded all my data to have 3 columns (from, to, weight) with the first column being the observed species, second column being the associating species, and weight being how many times that event was observed. I cannot for the life of me figure out how to get the edges to visually represent the weight column. I've tried both igraph and visNetwork (see below).

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