[R] Averate memory usage trend

[arun]

library(stringr)


read.table(text=gsub("[()]","",str_trim(input[input!=""])),sep="",header=FALSE,stringsAsFactors=FALSE)
#   V1    V2 V3
#1 6.2 httpd 18
#2 4.0 httpd 11
#3 4.0 httpd 11
#4 3.3 httpd  9
#5 4.2 httpd 12
#6 4.2 httpd 12
#7 4.2 httpd 12
#8 4.2 httpd 12
#9 4.2 httpd 12
A.K. 




----- Original Message -----
From: "mohan.radhakrishnan at polarisft.com" <mohan.radhakrishnan at polarisft.com>
To: r-help at r-project.org
Cc: 
Sent: Friday, September 20, 2013 9:15 AM
Subject: Re: [R] Averate memory usage trend

Replying with some code.

input<- readLines(textConnection("
  6.2   httpd (18)
  4.0   httpd (11)
  4.0   httpd (11)
  3.3   httpd (9)
  4.2   httpd (12)
  4.2        httpd (12)
  4.2   httpd (12)
  4.2   httpd (12)
  4.2   httpd (12)
"))

data<-input[input!=""]

> data
[1] "  6.2 httpd (18)"   "  4.0 httpd (11)"   "  4.0 httpd (11)"   "  3.3 
httpd (9)" 
[5] "  4.2 httpd (12)"   "  4.2   httpd (12)" "  4.2 httpd (12)"   "  4.2 
httpd (12)" 
[9] "  4.2 httpd (12)" 

m <- t(sapply(1:1,function(x) unlist(strsplit(data," +"))))

   [,1] [,2]  [,3]    [,4]   [,5] [,6]  [,7]    [,8]   [,9] [,10] [,11] 
[,12]  [,13] [,14]
[1,] ""   "6.2" "httpd" "(18)" ""   "4.0" "httpd" "(11)" ""   "4.0" 
"httpd" "(11)" ""    "3.3"
     [,15]   [,16] [,17] [,18] [,19]   [,20]  [,21] [,22] [,23]   [,24] 
[,25] [,26] [,27] 
[1,] "httpd" "(9)" ""    "4.2" "httpd" "(12)" ""    "4.2" "httpd" "(12)" 
""    "4.2" "httpd"
     [,28]  [,29] [,30] [,31]   [,32]  [,33] [,34] [,35]   [,36] 
[1,] "(12)" ""    "4.2" "httpd" "(12)" ""    "4.2" "httpd" "(12)"


What I want to do is this ?

  6.2   httpd       18
  4.0   httpd       11
  4.0   httpd       11
  3.3   httpd        9)
  4.2   httpd       12
  4.2        httpd        12
  4.2   httpd       12
  4.2   httpd       12
  4.2   httpd       12


Thanks,
Mohan



From:  mohan.radhakrishnan at polarisft.com
To:    r-help at r-project.org
Date:   09/20/2013 10:44 AM
Subject:        [R] Averate memory usage trend
Sent by:        r-help-bounces at r-project.org



Hi,

        I would like to understand how to draw a graph to find out the 
average memory used by a single httpd process given these details 
collected over a period of
several days. I code R but this is about a method to find an average 
memory utilization. I believe I have enough data.

How should I statistically calculate this ? 

The figures inside braces are the total httpd processes at that time. Will 

there be an error  margin if I have combined totals like this ?

Sample data :

  Private     Shared     RAM used       Program 
  4.0 MiB    3.3 MiB        7.2 MiB     httpd (11)
  3.3 MiB    3.0 MiB       6.3 MiB      httpd (9)
  4.2 MiB    3.3 MiB      7.5 MiB       httpd (12)


Thanks,
Mohan



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______________________________________________
R-help at r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.