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The node_data class defines a set of nodal variables. The data is stored for each node that is listed in the item list of the node_data element or for all nodes if no list is defined. The following nodal variables are defined.

<node_data data="x;y;z"></node_data>

You can store the total nodal displacement for nodes 1 through 100, and all even numbered nodes 200 through 400 as follows:

<node_data data="ux;uy;uz">1:100:1,200:400:2</node_data>