[R] How do I get a rough quick utility plot of a time series?

[Hurr]

I believe I have made this posting simple enough to understand.
The sample time-series has only 10 times.
SimpleTS() is the R function to contain the call to do the plot.

SimpleTS <- function() { 
  titleline <- readLines("SimpleTS.dta", n=1) 
  print(titleline) 
  dta <- read.table("SimpleTS.dta", skip = 1, header = TRUE, sep = ",",
colClasses = "character")
  print(dta) 
  dta <- linearizeTime(dta) 
  print(titleline) 
  print(dta) 
  # plotting call goes here
} #end SimpleTS 

A printout in linearizeTime(dta) is this: 
[1] "`Simple Time Series"
   Simpl CnYrMoDaHrMn SBP DBP HRT X
1  Simpl 201005251030 117  53  54  
2  Simpl 201005271116 108  65  52  
3  Simpl 201005281237 107      59  
4  Simpl 201005291329          58  
5  Simpl 201005301456  97  56  52  
6  Simpl 201006011030              
7  Simpl 201006021147 108  65  52  
8  Simpl 201006041225 107      59  
9  Simpl 201006051344      57  58  
10 Simpl 201006061417  97  56  52  

The printout at the end of SimpleTS() is this:
[1] "`Simple Time Series"
       monoMn SBP DBP HRT
1  1057366710 117  53  54
2  1057369636 108  65  52
3  1057371157 107  NA  59
4  1057372649  NA  NA  58
5  1057374176  97  56  52
6  1057376790  NA  NA  NA
7  1057378307 108  65  52
8  1057381225 107  NA  59
9  1057382744  NA  57  58
10 1057384217  97  56  52

We want a simple 3-tier plot with monoMn on the abscissa
and the three functions SBP DBP HRT plotted as fct of monoMn.
We will want more-beautiful plots later, but can't specify now.


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