n.channels can become Inf in plot_detPlot()

[mcol]

If signal.integral.min == signal.integral.max, n.channel is computed as Inf:

Luminescence/R/plot_DetPlot.R

Lines 212 to 215 in 759a114

	if(is.null(n.channels)){
	n.channels <- ceiling(
	(background.integral.min - 1 - signal.integral.max) / (signal.integral.max - signal.integral.min)
	)

For example here:

plot_DetPlot(
    object,
    method = "shift",
    signal.integral.min = 1,
    signal.integral.max = 1,
    background.integral.min = 20,
    background.integral.max = 70,
    analyse_function.control = list(
        fit.method = "LIN"),
    verbose = FALSE)
# Error in 1:n.channels : result would be too long a vector

[mcol]

Fixed by #206.