statistics/node_history_may0809.r

   1
   2 source("functions.r");
   3
   4 # data collected from M2 pickle files
   5 dnc <- read.csv('daily-available-node-count.csv', sep=',', header=TRUE)
   6
   7 dnc2<-add_timestamp(dnc)
   8
   9 tstamp_08 <-unclass(as.POSIXct("2008-05-07", origin="1970-01-01"))[1]
  10 dnc2 <- dnc2[which( dnc2$start >  tstamp_08 ),]
  11
  12
  13 dates <-seq(as.Date('2008-05-07'), as.Date('2009-05-07'), 'week')
  14 months <- format(dates, "%b")
  15 hbreaks<-unclass(as.POSIXct(dates))
  16
  17 x_start<-unclass(as.POSIXct("2008-05-07", origin="1970-01-01"))[1]
  18 x_end  <-unclass(as.POSIXct("2009-06-1", origin="1970-01-01"))[1]
  19
  20 par(mfrow=c(1,1))
  21 par(mai=c(.9,.8,.5,.4))
  22 start_image("daily-node-count.png", height=400)
  23 #plot(dnc2$start[which(!is.na(dnc2$available))], dnc2$registered[which(!is.na(dnc2$available))],
  24 #    type='l', col='blue', ylim=c(0,1000), xlim=c(x_start, x_end),
  25 #    xlab="Date", ylab="Node Count", axes=F)
  26 plot(dnc2$start[which(!is.na(dnc2$available))], dnc2$available[which(!is.na(dnc2$available))],
  27     type='l', col='red', ylim=c(0,600), xlim=c(x_start, x_end),
  28     xlab="Date", ylab="Online Node Count", axes=F)
  29 #lines(dnc2$start[which(!is.na(dnc2$available))], dnc2$available[which(!is.na(dnc2$available))],
  30 #type='l', col='red', ylim=c(0,1000))
  31 axis(2, las=1)
  32 axis(1, labels=months, at=hbreaks)
  33
  34
  35 tstamp_0610 <-abline_at_date("2008-06-10", col='grey20', lty=2)
  36 # dates takes from reboot_image() output for API events.
  37 tstamp_0815 <-abline_at_date("2008-08-15", col='grey20', lty=2)
  38 tstamp_0905 <-abline_at_date("2008-09-05", col='grey70')
  39 tstamp_0924 <-abline_at_date("2008-09-24", col='grey20', lty=2)
  40 tstamp_1015 <-abline_at_date("2008-10-15", col='grey20', lty=2)
  41 tstamp_1105 <-abline_at_date("2008-11-05", col='white', lty=2)
  42 tstamp_1214 <-abline_at_date("2008-12-14", col='grey70')
  43 tstamp_0223 <-abline_at_date("2009-02-23", col='grey70')
  44 tstamp_0313 <-abline_at_date("2009-03-13", col='grey70')
  45
  46
  47 text(x=c(tstamp_0610+(tstamp_0815-tstamp_0610)/2,
  48          tstamp_0815+(tstamp_0905-tstamp_0815)/2,
  49          tstamp_0924+(tstamp_1015-tstamp_0924)/2,
  50          tstamp_1015+(tstamp_1214-tstamp_1015)/2,
  51          tstamp_1214+(tstamp_0223-tstamp_1214)/2,
  52          tstamp_0223+(tstamp_0313-tstamp_0223)/2),
  53      y=c(0),
  54      labels=c("Kernel bug", 'fix1', 'fix2', 'fix3', 'Notice bug', 'fix4')) #, 'fix 2', 'fix 3', 'fix 4'))
  55
  56 mtext("2008                                 2009", 1,2)
  57 legend(unclass(as.POSIXct("2009-03-13", origin="1970-01-01"))[1], 100,
  58         cex=0.7,
  59         legend=c("Online", 'Kernel Update', 'MyOps Event'),
  60         pch=c('-', '-', '-'),
  61         col=c('red', 'grey20', 'grey70'),
  62         lty=c(1, 2, 1), merge=T)
  63
  64         #legend=c("Registered", "Online", 'Kernel Update', 'MyOps Event'),
  65         #pch=c('-', '-', '-', '-'),
  66         #col=c('blue', 'red', 'grey20', 'grey70'),
  67         #lty=c(1, 1, 2, 1), merge=T)
  68
  69 end_image()
  70