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LSTYLE(*)....LSTYLE(K) is the line style (1,2,...) to be used. See <CORE> routine SETLS for a description of the available line styles. The default is LSTYLE(*) = 1. LSTYLE(K)=1 gives a solid line for curve K, while other values (2,3,...) give a variety of dashed lines. If LSTYLE(K) <= 0, then the data points for curve K are not connected by line segments. In such a case, one should normally set NU(K) = 1, so that a mark is placed at each point.