require("tframePlus")
  require("tfplot")
  if(!require("zoo")) stop("zoo not available, tests failed.")    


 Sys.info()

  #x11()
#  postscript(file="lite.out.ps",  paper="letter", horizontal=F, onefile=T)
#             # width=6, height=8, pointsize=10,


  all.ok <-  TRUE
  cat("tframe zoo test 1 ... ")
  z <- zoo(rnorm(100), 
     as.POSIXct(Sys.time() + sort(round(runif(100)*1e8)), "GMT")) 
  seriesNames(z) <- "random example"
  ok <- all(seriesNames(z) == c("random example"))
  all.ok <- all.ok & ok 
  if (ok) cat("ok\n") else cat("unvariate seriesNames failed!\n") 
  ok <- is.tframed(z) & (inherits(z, "zoo"))
  all.ok <- ok
  if (ok) cat("ok\n") else cat("failed!\n") 


  cat("tframe zoo test 2 ... ")
  plot(z)
  tfplot(z)
  all.ok <- all.ok & ok 
  if (ok) cat("ok\n") else cat("failed!\n") 

  cat("tframe zoo test 3 ... ")
  y <- rnorm(100)
  tframe(y) <- tframe(z)  
  ok <- is.tframed(y) & (inherits(y, "zoo")) & (start(y) == start(z))
  all.ok <- all.ok & ok 
  if (ok) cat("ok\n") else cat("failed!\n") 

  cat("tframe zoo test 4 ... ")
  ok <- all(tframe(y) == tframe(z))
  all.ok <- all.ok & ok 
  if (ok) cat("ok\n") else cat("failed!\n") 


  cat("tframe zoo test 5 ... ")
  #  irregular series at random observation times
  z <- tbind(z, zoo(rnorm(120),
          as.POSIXct(Sys.time() + sort(round(runif(120)*1e8)), "GMT")))
  seriesNames(z) <- c("random 1", "random 2")
  ok <- all(seriesNames(z) == c("random 1", "random 2"))
  all.ok <- all.ok & ok 
  if (ok) cat("ok\n") else cat("multivariate seriesNames failed!\n") 
  # Tobs(z) will be 220 except in the random case of two equal time stamps
  y <- rnorm(Tobs(z)) 
  tframe(y) <- tframe(z)  
  ok <- all(tframe(y) == tframe(z))
  all.ok <- all.ok & ok 
  if (ok) cat("ok\n") else cat("failed!\n") 

  cat("tframe zoo test 6... ")
  plot(z)
  tfplot(z)
  ok <- is.tframed(z) & (inherits(z, "zoo"))
  all.ok <- all.ok & ok 
  if (ok) cat("ok\n") else cat("failed!\n") 

  cat("tframe zoo test 7 ... ")
  y <- rnorm(Tobs(z))
  tframe(y) <- tframe(z)  
  ok <- is.tframed(y) & (inherits(y, "zoo")) & (start(y) == start(z))
  all.ok <- all.ok & ok 
  if (ok) cat("ok\n") else cat("failed!\n") 

  cat("tframe zoo test 8 ... ")
  ok <- all(tframe(y) == tframe(z))
  all.ok <- all.ok & ok 
  if (ok) cat("ok\n") else cat("failed!\n") 


 cat("All tframe zoo tests completed")
 if (all.ok) cat(" OK\n") else cat(", some FAILED!\n")