ESDU 04012
Examples of construction of carpet plots from experimental data.
Abstract:
The "carpet" plot is a form of graph which illustrates the behaviour of a function of two independent variables. Unlike the conventional type of graph, which shows the variation of a function with one of the independent variables while the other is held at a series of fixed values, the carpet plot shows how the function varies with both variables together. This feature facilitates interpolation of the function for intermediate values of both independent variables. ESDU 04008 illustrates the problems that can arise with conventional 2dimensional plots and shows how these are overcome by use of carpet plots. It provides numerous examples of carpet plots of an independent variable, y, as lines of constant values of two independent variables, x and z. In practice, however, values of independent variables used in tests may not be evenly spaced and will include some level of experimental error. The construction of carpets from such data is then more complicated than indicated in ESDU 04008. The function of ESDU 04012 is to provide three worked examples to show how such data sets can be used to generate carpet plots.Indexed under:
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