Dear R users, I have already asked this in r-sig-finance (not getting a solution) but it seems to be plot-related anyway.
I like to plot several financial charts to files with an identical layout according to "indicators" so the charts can be browsed quickly. quantmod::chart_Series is a function to plot a financially-related chart in the upper part and zero or more indicators below. Normally these indicators would be assigned defined values at least in some part of the subset/window to be plotted, which is fine for plot. But if all observations are NA chart_Series throws Error in plot.window(c(1, 31), c(NaN, NaN)) : need finite 'ylim' values While this outcome for plot/plot.window may be intended for most applications it is undesirable here. Getting a blank subwindow here is intended if the indicator is completely NA (at least in the subset to be plotted). This post https://stat.ethz.ch/pipermail/r-sig-finance/2020q3/015000.html suggests to generate the plot object with chart_Series and then to explicitly set x$Env$ylim[[4]] before plotting - without success. Can I tell plot/plot.window to ignore such errors and simply generate an empty region instead? Thanks Mike My minimal reproducible: library(quantmod) my_plot_function <- function () { data (sample_matrix) sample.xts <- as.xts (sample_matrix[1:50,'Close'], dateFormat="POSIXct") sample.xts <- cbind (sample.xts, NA) sample.xts[50,2] <- 0 colnames (sample.xts) <- c('Close', 'Indicator') # Indicator ta <- list ("add_TA(sample.xts[,2])") # In the range to be plotted ta is completely NA subset <- '2007-01-10::2007-01-30' plot (chart_Series (sample.xts[,1], subset=subset, TA=ta)) } my_plot_function () ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
