Additional file 1 of A simple approach for quantifying node centrality in signed and directed social networks

Additional file 1. The Hungarian school classroom data are given in the form of eight Excel files, each for a particular class. Those eight classes are identified as classes “a”, “b”, “c”, “d”, “e”, “f”, “g” and “h”. For instance, data for class “a” are in the file a.xlsx. Each file has several Excel spreadsheets. A spreadsheet with a label “YYMM” is the social network data collected on month MM in year 20YY, and the data is organized in three columns: the first and the second columns, namely “nominator” and “nominee”, contain the identifiers for the students; while the last column, namely “relation”, contains whether the “nominator” nominates the “nominee” as a friend (coded “1”) or as an enemy (coded “-1”). A spreadsheet with a label “gen” contains the gender information for each student, and it has two columns: the “id” column contains the identifier for a particular student whose gender is recorded in the column “gender” (coded “0” for girls and “1” for boys). A spreadsheet with a label “feel” contains the feeling score for each student when the social network data were collected, and it contains the following columns: the column “id” is the identifies for the students, and the column “feelYYMM” contains the feeling scores for students when the social network data was collected on month MM in year 20YY. The feeling score is a rough measurement of how they feel in the school ranging on an integer scale from very bad (1) to very good (5). Furthermore, a feeling score of 7 means that the corresponding student was not in the class on the day when data were collected; while a score of 9 means that the student was present in the class but didn’t give a feeling score. A brief summary of each social network data can be found in the file named “Brief_Summary.xlsx”. It summarises for each social network, the number of students, the number of friend-nominating ties, the number of enemy-nominating ties, the degree (i.e. the sum of the number of friend-nominating ties and the number of enemy-nominating ties), and their means.