utils::globalVariables(c("libsizes","x_xmap_y_mean", "y_xmap_x_mean",
                         "x_xmap_y_lower", "x_xmap_y_upper",
                         "y_xmap_x_lower", "y_xmap_x_upper",
                         "x_xmap_y_sig", "y_xmap_x_sig"))
