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-rw-r--r--R/plot.mmkin.R12
1 files changed, 10 insertions, 2 deletions
diff --git a/R/plot.mmkin.R b/R/plot.mmkin.R
index 562bbb71..ee7075d3 100644
--- a/R/plot.mmkin.R
+++ b/R/plot.mmkin.R
@@ -79,8 +79,16 @@ plot.mmkin <- function(x, main = "auto", legends = 1, errmin_var = "All data", e
datasets = colnames(x)[i.fit],
none = "")
- chi2 <- paste0(signif(100 * mkinerrmin(fit)[errmin_var, "err.min"], errmin_digits), "%")
- mtext(bquote(.(fit_name) ~ chi^2 ~ "error level" == .(chi2)), cex = cex, line = 0.4)
+ chi2 <- signif(100 * mkinerrmin(fit)[errmin_var, "err.min"], errmin_digits)
+
+ # Use LateX if the current plotting device is tikz
+ if (names(dev.cur()) == "tikz output") {
+ chi2_text <- paste0(fit_name, " $\\chi^2$ error level = ", chi2, "\\%")
+ } else {
+ chi2_perc <- paste0(chi2, "%")
+ chi2_text <- bquote(.(fit_name) ~ chi^2 ~ "error level" == .(chi2_perc))
+ }
+ mtext(chi2_text, cex = cex, line = 0.4)
mkinresplot(fit, legend = FALSE, ...)
mtext(paste(fit_name, "residuals"), cex = cex, line = 0.4)

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