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2. Line chart - Wikipedia

   en.wikipedia.org/wiki/Line_chart

   Line chart showing the population of the town of Pushkin, Saint Petersburg from 1800 to 2010, measured at various intervals. A line chart or line graph, also known as curve chart, [1] is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments. [2]

3. Planar straight-line graph - Wikipedia

   en.wikipedia.org/wiki/Planar_straight-line_graph

   An example of planar straight-line graph. In computational geometry and geometric graph theory, a planar straight-line graph (or straight-line plane graph, or plane straight-line graph), in short PSLG, is an embedding of a planar graph in the plane such that its edges are mapped into straight-line segments. [1]

4. Line graph - Wikipedia

   en.wikipedia.org/wiki/Line_graph

   In the mathematical discipline of graph theory, the line graph of an undirected graph G is another graph L(G) that represents the adjacencies between edges of G. L(G) is constructed in the following way: for each edge in G, make a vertex in L(G); for every two edges in G that have a vertex in common, make an edge between their corresponding vertices in L(G).

5. Plot (graphics) - Wikipedia

   en.wikipedia.org/wiki/Plot_(graphics)

   Departures from this straight line indicate departures from normality. The normal probability plot is a special case of the probability plot. Nyquist plot : Plot is used in automatic control and signal processing for assessing the stability of a system with feedback. It is represented by a graph in polar coordinates in which the gain and phase ...

6. Log–log plot - Wikipedia

   en.wikipedia.org/wiki/Log–log_plot

   In other words, F is proportional to x to the power of the slope of the straight line of its log–log graph. Specifically, a straight line on a log–log plot containing points (x 0, F 0) and (x 1, F 1) will have the function: = ⁡ (/) ⁡ (/), Of course, the inverse is true too: any function of the form = will have a straight line as its log ...

7. Fáry's theorem - Wikipedia

   en.wikipedia.org/wiki/Fáry's_theorem

   Integer-distance straight line embeddings are known to exist for cubic graphs. [3] Sachs (1983) raised the question of whether every graph with a linkless embedding in three-dimensional Euclidean space has a linkless embedding in which all edges are represented by straight line segments, analogously to Fáry's theorem for two-dimensional ...

8. Bode plot - Wikipedia

   en.wikipedia.org/wiki/Bode_plot

   The red data curve is approximated by the straight black line. Figure 1B: Low-pass filter (1st-order, one-pole) Bode magnitude plot (top) and Bode phase plot (bottom). The red data curve is approximated by the straight black line. In electrical engineering and control theory, a Bode plot is a graph of the frequency response of a system.

9. Linear trend estimation - Wikipedia

   en.wikipedia.org/wiki/Linear_trend_estimation

   Also, where the variations are significantly larger than the resulting straight line trend, the choice of start and end points can significantly change the result. That is, the model is mathematically misspecified. Statistical inferences (tests for the presence of a trend, confidence intervals for the trend, etc.) are invalid unless departures ...