![]() No color highlight – Turns off green highlighting.Ĭolor highlight refers to whole matrix – The highlight color takes into account the value of the cell. Names, columns: none, short, full – Controls column width. New similarity/distance matrix – Calls up the dialog window where you can create a new matrix. In addition to the usual export options, the following functions can be accessed from the toolbar: The matrix is sortable: Click on a column header to sort the documents in the rows according to their similarity to the clicked document. In the figure, for example, you can see that “Sam” completely coincides with “Jamie” both in their codes and their variable values. The default shadowed color helps to interpret the cells, which in a similarity matrix can have a value of 0 (no similarity) to 1 (identical): The darker the green, the more similar the two documents are in terms of the selected code and variable values. Russel & Rao = a / (a + b + c + d) – Only existence is considered a match, but non-existence reduces the similarity. Kuckartz & Rädikers zeta = (2a + d) / (2a + b + c + d) – Existence is counted twice, non-existence once. Jaccard = a / (a + b + c) – Non-existence is completely ignored. Simple match = (a + d) / (a + b + c + d) – Both existence and non-existence are counted as a match. The calculation options differ in, among other things, the extent to which field “d”, or non-existence in both documents, is considered a match. All of the calculations are based on a four-field table of the following type that is generated for each paired combination of documents (in the background):Ī = Number of codes or variable values that are identical in both documents.ĭ = Number of codes or variable values that do not exist in both documents.ī and c = Number of codes or variable values that exist in only one document. To calculate similarity, various options are available. Similarity measures with the option “Existence of Code” You can add all activated codes directly via the Paste activated codes button.Įxistence of code – Generates a similarity matrix that considers only whether the selected codes occur in the document or not.Ĭode frequency – Generates a distance matrix that takes the distance of individual codes into consideration. In the upper section, you can add the codes you wish to include in the analysis.
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