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plot cummulative sum from calendar time

jim holtman 
Here is an example of plotting the number of observations per month.
You can change this to any period you want.

# create some test data
x.d <- as.Date("2000-1-1") + runif(1000, 1, 500)
# create buckets of one month (or whatever period you want)
x.cut <- cut(x.d, breaks=seq(as.Date('2000-1-1'), max(x.d)+7, by="1 month"))
# plot the data
barplot(table(x.cut), main="Observations Per Month")
On Dec 19, 2007 1:59 AM, gallon li <gallon.li at gmail.com> wrote:

  
    

      
      
    

  


  


  


  
  

    

  

    
      
    
    
Thread (4 messages)

  

  

    
            
        gallon li
        
        plot cummulative sum from calendar time
      
      Dec 18
    
    
      
            
        Gavin Simpson
        
        plot cummulative sum from calendar time
      
      Dec 19
    
    
      
            
        jim holtman
        
        plot cummulative sum from calendar time
      
      Dec 19
    
    
      
            
        John Kane
        
        plot cummulative sum from calendar time
      
      Dec 19