quad12/labmoderna/p3/r/Ra_aire.r

library(tikzDevice)

nom <- 'Ra_aire'
scale <- 4

table <- read.table(paste0('dades/', nom, '.txt'), sep="\t", dec='.', header=TRUE)

# Plot the data
plotall <- function() {
  plot(table$Energy, table$Impulses, type="l", col="#EEEEFF", xlab="Energia (keV)", ylab="Comptes", ylim=c(0, 100))
  lines(table$Energy, table$ImpulsesSmooth, type="l")

  # Add arrows and text labels to the peaks
  for (j in 1:nrow(peaks)) {
    i <- peaks[j, 'indexes']
    label <- peaks[j, 'labels']
    arrows(table$Energy[i], table$ImpulsesSmooth[i] + scale*(if (j == 1) 5 else 3), table$Energy[i], table$ImpulsesSmooth[i] + scale*0.1, length = 0.05, code = 1, col = "#514E7E")
    text(table$Energy[i], table$ImpulsesSmooth[i] + scale*(if (j == 1) 6.6 else 4.6), paste0(table$Energy[i], " keV", "\n", label), col = "#514E7E", cex = 0.75)
  }
}

# Els valors dins de c(...) són les files del fitxer de dades.
# Es resta 2 per trobar els índexs (2 columnes són headers).
indexes <- c(207, 327, 645) - 2
labels <- c("\\textsuperscript{210}Po + \\textsuperscript{222}Rn", "\\textsuperscript{218}Po", "\\textsuperscript{214}Po")
peaks <- data.frame(indexes, labels)

pdf(paste0('output/', nom, '.pdf'), width = 6, height = 5)
plotall()
dev.off()

tikz(paste0('output/', nom, '.tex'), width = 6, height = 5)
plotall()
dev.off()