The R Project SVN R-packages

R : Copyright 2001, The R Development Core Team
Version 1.3.0 Under development (unstable) (2001-02-19)

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You are welcome to redistribute it under certain conditions.
Type `license()' or `licence()' for distribution details.

R is a collaborative project with many contributors.
Type `contributors()' for more information.

Type `demo()' for some demos, `help()' for on-line help, or
`help.start()' for a HTML browser interface to help.
Type `q()' to quit R.

> library(foreign)
> sample100 <- read.spss("sample100.sav")
> summary(sample100)
         Length Class  Mode     
YEAR     100    -none- numeric  
DISTRICT 100    -none- numeric  
CAMPUS   100    -none- numeric  
DNAME    100    -none- character
CNAME    100    -none- character
SEX      100    -none- character
DISADVG  100    -none- character
ETHNICTY 100    -none- character
STUID    100    -none- character
TLIMTH   100    -none- numeric  
GRADE    100    -none- numeric  
> str(sample100)
List of 11
 $ YEAR    : num [1:100] 99 94 94 95 96 97 98 99 94 95 ...
 $ DISTRICT: num [1:100] 57914 57914 57914 57914 57914 ...
 $ CAMPUS  : num [1:100] 57914045 57914106 57914110 57914123 57914117 ...
 $ DNAME   : chr [1:100] "MESQUITE ISD   " "MESQUITE ISD   " "MESQUITE ISD   " "MESQUITE ISD   " ...
 $ CNAME   : chr [1:100] "A C NEW MIDDLE " "MCWHORTER EL   " "RUTHERFORD EL  " "JOEY M PIRRUNG " ...
 $ SEX     : chr [1:100] "F" "F" " " "F" ...
 $ DISADVG : chr [1:100] "NO " "NO " "   " "NO " ...
 $ ETHNICTY: chr [1:100] "WHITE   " "WHITE   " "        " "HISPANIC" ...
 $ STUID   : chr [1:100] "00614371S" "00614372S" "00614373S" "00614373S" ...
 $ TLIMTH  : num [1:100] 90 86 67 77 77 79 86 87 89 85 ...
 $ GRADE   : num [1:100] 8 3 3 4 5 6 7 8 3 4 ...
> sample100 <- data.frame(sample100)
> summary(sample100)
      YEAR           DISTRICT          CAMPUS                      DNAME   
 Min.   :  94.0   Min.   : 57905   Min.   : 57905126   DALLAS ISD     : 1  
 1st Qu.:  95.0   1st Qu.: 57914   1st Qu.: 57914046   HARMONY ISD    : 1  
 Median :  96.0   Median : 57914   Median : 57914112   MESQUITE ISD   :96  
 Mean   : 115.4   Mean   : 59644   Mean   : 59644015   SUNNYVALE ISD  : 2  
 3rd Qu.:  98.0   3rd Qu.: 57914   3rd Qu.: 57914125                       
 Max.   :2000.0   Max.   :230905   Max.   :230905101                       
                                                                           
             CNAME    SEX    DISADVG      ETHNICTY        STUID   
 J C AUSTIN EL  :23    : 4      : 4           : 4   00614421S: 6  
 R S KIMBROUGH M:12   F:62   NO :90   HISPANIC: 3   00614420S: 6  
 WILKINSON MIDDL: 9   M:34   YES: 6   OTHER   : 2   00614417S: 6  
 VERNON PRICE EL: 7                   WHITE   :91   00614416S: 6  
 TISINGER EL    : 6                                 00614414S: 6  
 THOMPSON EL    : 5                                 00614406S: 6  
 (Other)        :38                                 (Other)  :64  
     TLIMTH          GRADE     
 Min.   :54.00   Min.   :3.00  
 1st Qu.:74.00   1st Qu.:4.00  
 Median :84.00   Median :5.00  
 Mean   :80.16   Mean   :5.37  
 3rd Qu.:87.00   3rd Qu.:7.00  
 Max.   :93.00   Max.   :8.00  
                               
> sample100 <- read.spss("sample100.por")
> summary(sample100)
         Length Class  Mode     
YEAR     100    -none- numeric  
DISTRICT 100    -none- numeric  
CAMPUS   100    -none- numeric  
DNAME    100    -none- character
CNAME    100    -none- character
SEX      100    -none- character
DISADVG  100    -none- character
ETHNICTY 100    -none- character
STUID    100    -none- character
TLIMTH   100    -none- numeric  
GRADE    100    -none- numeric  
> str(sample100)
List of 11
 $ YEAR    : num [1:100] 99 94 94 95 96 97 98 99 94 95 ...
 $ DISTRICT: num [1:100] 57914 57914 57914 57914 57914 ...
 $ CAMPUS  : num [1:100] 57914045 57914106 57914110 57914123 57914117 ...
 $ DNAME   : chr [1:100] "MESQUITE ISD   " "MESQUITE ISD   " "MESQUITE ISD   " "MESQUITE ISD   " ...
 $ CNAME   : chr [1:100] "A C NEW MIDDLE " "MCWHORTER EL   " "RUTHERFORD EL  " "JOEY M PIRRUNG " ...
 $ SEX     : chr [1:100] "F" "F" " " "F" ...
 $ DISADVG : chr [1:100] "NO " "NO " "   " "NO " ...
 $ ETHNICTY: chr [1:100] "WHITE   " "WHITE   " "        " "HISPANIC" ...
 $ STUID   : chr [1:100] "00614371S" "00614372S" "00614373S" "00614373S" ...
 $ TLIMTH  : num [1:100] 90 86 67 77 77 79 86 87 89 85 ...
 $ GRADE   : num [1:100] 8 3 3 4 5 6 7 8 3 4 ...
> sample100 <- data.frame(sample100)
> summary(sample100)
      YEAR           DISTRICT          CAMPUS                      DNAME   
 Min.   :  94.0   Min.   : 57905   Min.   : 57905126   DALLAS ISD     : 1  
 1st Qu.:  95.0   1st Qu.: 57914   1st Qu.: 57914046   HARMONY ISD    : 1  
 Median :  96.0   Median : 57914   Median : 57914112   MESQUITE ISD   :96  
 Mean   : 115.4   Mean   : 59644   Mean   : 59644015   SUNNYVALE ISD  : 2  
 3rd Qu.:  98.0   3rd Qu.: 57914   3rd Qu.: 57914125                       
 Max.   :2000.0   Max.   :230905   Max.   :230905101                       
                                                                           
             CNAME    SEX    DISADVG      ETHNICTY        STUID   
 J C AUSTIN EL  :23    : 4      : 4           : 4   00614421S: 6  
 R S KIMBROUGH M:12   F:62   NO :90   HISPANIC: 3   00614420S: 6  
 WILKINSON MIDDL: 9   M:34   YES: 6   OTHER   : 2   00614417S: 6  
 VERNON PRICE EL: 7                   WHITE   :91   00614416S: 6  
 TISINGER EL    : 6                                 00614414S: 6  
 THOMPSON EL    : 5                                 00614406S: 6  
 (Other)        :38                                 (Other)  :64  
     TLIMTH          GRADE     
 Min.   :54.00   Min.   :3.00  
 1st Qu.:74.00   1st Qu.:4.00  
 Median :84.00   Median :5.00  
 Mean   :80.16   Mean   :5.37  
 3rd Qu.:87.00   3rd Qu.:7.00  
 Max.   :93.00   Max.   :8.00  
                               
> pbc <- read.spss("pbc.sav")
> summary(pbc)
         Length Class  Mode   
AGE      418    -none- numeric
ALB      418    -none- numeric
ALKPHOS  418    -none- numeric
ASCITES  418    -none- numeric
BILI     418    -none- numeric
CHOL     418    -none- numeric
EDEMA    418    -none- numeric
EDTRT    418    -none- numeric
HEPMEG   418    -none- numeric
TIME     418    -none- numeric
PLATELET 418    -none- numeric
PROTIME  418    -none- numeric
SEX      418    -none- numeric
SGOT     418    -none- numeric
SPIDERS  418    -none- numeric
STAGE    418    -none- numeric
STATUS   418    -none- numeric
TRT      418    -none- numeric
TRIG     418    -none- numeric
COPPER   418    -none- numeric
> str(pbc)
List of 20
 $ AGE     : num [1:418] 58.8 56.4 70.1 54.7 38.1 ...
 $ ALB     : num [1:418] 2.6 4.14 3.48 2.54 3.53 3.98 4.09 4 3.08 2.74 ...
 $ ALKPHOS : num [1:418] 1718 7395  516 6122  671 ...
 $ ASCITES : num [1:418] 1 0 0 0 0 0 0 0 0 1 ...
 $ BILI    : num [1:418] 14.5 1.1 1.4 1.8 3.4 0.8 1 0.3 3.2 12.6 ...
 $ CHOL    : num [1:418] 261 302 176 244 279 248 322 280 562 200 ...
 $ EDEMA   : num [1:418] 1 0 1 1 0 0 0 0 0 1 ...
 $ EDTRT   : num [1:418] 1 0 0.5 0.5 0 0 0 0 0 1 ...
 $ HEPMEG  : num [1:418] 1 1 0 1 1 1 1 0 0 0 ...
 $ TIME    : num [1:418]  400 4500 1012 1925 1504 ...
 $ PLATELET: num [1:418] 190 221 151 183 136 -9 204 373 251 302 ...
 $ PROTIME : num [1:418] 12.2 10.6 12 10.3 10.9 11 9.7 11 11 11.5 ...
 $ SEX     : num [1:418] 1 1 0 1 1 1 1 1 1 1 ...
 $ SGOT    : num [1:418] 137.9 113.5  96.1  60.6 113.2 ...
 $ SPIDERS : num [1:418] 1 1 0 1 1 0 0 0 1 1 ...
 $ STAGE   : num [1:418] 4 3 4 4 3 3 3 3 2 4 ...
 $ STATUS  : num [1:418] 1 0 1 1 0 1 0 1 1 1 ...
 $ TRT     : num [1:418] 1 1 1 1 2 2 2 2 1 2 ...
 $ TRIG    : num [1:418] 172 88 55 92 72 63 213 189 88 143 ...
 $ COPPER  : num [1:418] 156 54 210 64 143 50 52 52 79 140 ...
> pbc <- data.frame(pbc)
> summary(pbc)
      AGE             ALB           ALKPHOS         ASCITES      
 Min.   :26.28   Min.   :1.960   Min.   :   -9   Min.   :-9.000  
 1st Qu.:42.83   1st Qu.:3.243   1st Qu.:   -9   1st Qu.:-9.000  
 Median :51.00   Median :3.530   Median : 1009   Median : 0.000  
 Mean   :50.74   Mean   :3.497   Mean   : 1478   Mean   :-2.225  
 3rd Qu.:58.24   3rd Qu.:3.770   3rd Qu.: 1708   3rd Qu.: 0.000  
 Max.   :78.44   Max.   :4.640   Max.   :13862   Max.   : 1.000  
      BILI             CHOL            EDEMA            EDTRT       
 Min.   : 0.300   Min.   :  -9.0   Min.   :0.0000   Min.   :0.0000  
 1st Qu.: 0.800   1st Qu.:  -9.0   1st Qu.:0.0000   1st Qu.:0.0000  
 Median : 1.400   Median : 252.5   Median :0.0000   Median :0.0000  
 Mean   : 3.221   Mean   : 248.2   Mean   :0.1196   Mean   :0.1005  
 3rd Qu.: 3.400   3rd Qu.: 347.8   3rd Qu.:0.0000   3rd Qu.:0.0000  
 Max.   :28.000   Max.   :1775.0   Max.   :1.0000   Max.   :1.0000  
     HEPMEG            TIME         PLATELET        PROTIME     
 Min.   :-9.000   Min.   :  41   Min.   : -9.0   Min.   : 9.00  
 1st Qu.:-9.000   1st Qu.:1093   1st Qu.:181.0   1st Qu.:10.00  
 Median : 0.000   Median :1730   Median :248.0   Median :10.60  
 Mean   :-1.900   Mean   :1918   Mean   :250.0   Mean   :10.73  
 3rd Qu.: 1.000   3rd Qu.:2614   3rd Qu.:315.5   3rd Qu.:11.10  
 Max.   : 1.000   Max.   :4795   Max.   :721.0   Max.   :18.00  
      SEX              SGOT           SPIDERS           STAGE         
 Min.   :-9.000   Min.   : -9.00   Min.   :-9.000   Min.   :-9.00000  
 1st Qu.:-9.000   1st Qu.: -9.00   1st Qu.:-9.000   1st Qu.:-9.00000  
 Median : 1.000   Median : 90.45   Median : 0.000   Median : 3.00000  
 Mean   :-1.622   Mean   : 89.20   Mean   :-2.067   Mean   :-0.01914  
 3rd Qu.: 1.000   3rd Qu.:135.75   3rd Qu.: 0.000   3rd Qu.: 4.00000  
 Max.   : 1.000   Max.   :457.25   Max.   : 1.000   Max.   : 4.00000  
     STATUS            TRT              TRIG           COPPER     
 Min.   :0.0000   Min.   :-9.000   Min.   : -9.0   Min.   : -9.0  
 1st Qu.:0.0000   1st Qu.:-9.000   1st Qu.: -9.0   1st Qu.: -9.0  
 Median :0.0000   Median : 1.000   Median : 85.0   Median : 50.5  
 Mean   :0.3852   Mean   :-1.167   Mean   : 81.2   Mean   : 70.1  
 3rd Qu.:1.0000   3rd Qu.: 2.000   3rd Qu.:127.8   3rd Qu.:100.8  
 Max.   :1.0000   Max.   : 2.000   Max.   :598.0   Max.   :588.0  
> pbc <- read.spss("pbcold.sav")
> summary(pbc)
         Length Class  Mode   
AGE      418    -none- numeric
ALB      418    -none- numeric
ALKPHOS  418    -none- numeric
ASCITES  418    -none- numeric
BILI     418    -none- numeric
CHOL     418    -none- numeric
EDEMA    418    -none- numeric
EDTRT    418    -none- numeric
HEPMEG   418    -none- numeric
TIME     418    -none- numeric
PLATELET 418    -none- numeric
PROTIME  418    -none- numeric
SEX      418    -none- numeric
SGOT     418    -none- numeric
SPIDERS  418    -none- numeric
STAGE    418    -none- numeric
STATUS   418    -none- numeric
TRT      418    -none- numeric
TRIG     418    -none- numeric
COPPER   418    -none- numeric
> str(pbc)
List of 20
 $ AGE     : num [1:418] 58.8 56.4 70.1 54.7 38.1 ...
 $ ALB     : num [1:418] 2.6 4.14 3.48 2.54 3.53 3.98 4.09 4 3.08 2.74 ...
 $ ALKPHOS : num [1:418] 1718 7395  516 6122  671 ...
 $ ASCITES : num [1:418] 1 0 0 0 0 0 0 0 0 1 ...
 $ BILI    : num [1:418] 14.5 1.1 1.4 1.8 3.4 0.8 1 0.3 3.2 12.6 ...
 $ CHOL    : num [1:418] 261 302 176 244 279 248 322 280 562 200 ...
 $ EDEMA   : num [1:418] 1 0 1 1 0 0 0 0 0 1 ...
 $ EDTRT   : num [1:418] 1 0 0.5 0.5 0 0 0 0 0 1 ...
 $ HEPMEG  : num [1:418] 1 1 0 1 1 1 1 0 0 0 ...
 $ TIME    : num [1:418]  400 4500 1012 1925 1504 ...
 $ PLATELET: num [1:418] 190 221 151 183 136 -9 204 373 251 302 ...
 $ PROTIME : num [1:418] 12.2 10.6 12 10.3 10.9 11 9.7 11 11 11.5 ...
 $ SEX     : num [1:418] 1 1 0 1 1 1 1 1 1 1 ...
 $ SGOT    : num [1:418] 137.9 113.5  96.1  60.6 113.2 ...
 $ SPIDERS : num [1:418] 1 1 0 1 1 0 0 0 1 1 ...
 $ STAGE   : num [1:418] 4 3 4 4 3 3 3 3 2 4 ...
 $ STATUS  : num [1:418] 1 0 1 1 0 1 0 1 1 1 ...
 $ TRT     : num [1:418] 1 1 1 1 2 2 2 2 1 2 ...
 $ TRIG    : num [1:418] 172 88 55 92 72 63 213 189 88 143 ...
 $ COPPER  : num [1:418] 156 54 210 64 143 50 52 52 79 140 ...
> pbc <- data.frame(pbc)
> summary(pbc)
      AGE             ALB           ALKPHOS         ASCITES      
 Min.   :26.28   Min.   :1.960   Min.   :   -9   Min.   :-9.000  
 1st Qu.:42.83   1st Qu.:3.243   1st Qu.:   -9   1st Qu.:-9.000  
 Median :51.00   Median :3.530   Median : 1009   Median : 0.000  
 Mean   :50.74   Mean   :3.497   Mean   : 1478   Mean   :-2.225  
 3rd Qu.:58.24   3rd Qu.:3.770   3rd Qu.: 1708   3rd Qu.: 0.000  
 Max.   :78.44   Max.   :4.640   Max.   :13862   Max.   : 1.000  
      BILI             CHOL            EDEMA            EDTRT       
 Min.   : 0.300   Min.   :  -9.0   Min.   :0.0000   Min.   :0.0000  
 1st Qu.: 0.800   1st Qu.:  -9.0   1st Qu.:0.0000   1st Qu.:0.0000  
 Median : 1.400   Median : 252.5   Median :0.0000   Median :0.0000  
 Mean   : 3.221   Mean   : 248.2   Mean   :0.1196   Mean   :0.1005  
 3rd Qu.: 3.400   3rd Qu.: 347.8   3rd Qu.:0.0000   3rd Qu.:0.0000  
 Max.   :28.000   Max.   :1775.0   Max.   :1.0000   Max.   :1.0000  
     HEPMEG            TIME         PLATELET        PROTIME     
 Min.   :-9.000   Min.   :  41   Min.   : -9.0   Min.   : 9.00  
 1st Qu.:-9.000   1st Qu.:1093   1st Qu.:181.0   1st Qu.:10.00  
 Median : 0.000   Median :1730   Median :248.0   Median :10.60  
 Mean   :-1.900   Mean   :1918   Mean   :250.0   Mean   :10.73  
 3rd Qu.: 1.000   3rd Qu.:2614   3rd Qu.:315.5   3rd Qu.:11.10  
 Max.   : 1.000   Max.   :4795   Max.   :721.0   Max.   :18.00  
      SEX              SGOT           SPIDERS           STAGE         
 Min.   :-9.000   Min.   : -9.00   Min.   :-9.000   Min.   :-9.00000  
 1st Qu.:-9.000   1st Qu.: -9.00   1st Qu.:-9.000   1st Qu.:-9.00000  
 Median : 1.000   Median : 90.45   Median : 0.000   Median : 3.00000  
 Mean   :-1.622   Mean   : 89.20   Mean   :-2.067   Mean   :-0.01914  
 3rd Qu.: 1.000   3rd Qu.:135.75   3rd Qu.: 0.000   3rd Qu.: 4.00000  
 Max.   : 1.000   Max.   :457.25   Max.   : 1.000   Max.   : 4.00000  
     STATUS            TRT              TRIG           COPPER     
 Min.   :0.0000   Min.   :-9.000   Min.   : -9.0   Min.   : -9.0  
 1st Qu.:0.0000   1st Qu.:-9.000   1st Qu.: -9.0   1st Qu.: -9.0  
 Median :0.0000   Median : 1.000   Median : 85.0   Median : 50.5  
 Mean   :0.3852   Mean   :-1.167   Mean   : 81.2   Mean   : 70.1  
 3rd Qu.:1.0000   3rd Qu.: 2.000   3rd Qu.:127.8   3rd Qu.:100.8  
 Max.   :1.0000   Max.   : 2.000   Max.   :598.0   Max.   :588.0  
> pbc <- read.spss("pbc.por")
> summary(pbc)
         Length Class  Mode   
AGE      418    -none- numeric
ALB      418    -none- numeric
ALKPHOS  418    -none- numeric
ASCITES  418    -none- numeric
BILI     418    -none- numeric
CHOL     418    -none- numeric
EDEMA    418    -none- numeric
EDTRT    418    -none- numeric
HEPMEG   418    -none- numeric
TIME     418    -none- numeric
PLATELET 418    -none- numeric
PROTIME  418    -none- numeric
SEX      418    -none- numeric
SGOT     418    -none- numeric
SPIDERS  418    -none- numeric
STAGE    418    -none- numeric
STATUS   418    -none- numeric
TRT      418    -none- numeric
TRIG     418    -none- numeric
COPPER   418    -none- numeric
> str(pbc)
List of 20
 $ AGE     : num [1:418] 58.8 56.4 70.1 54.7 38.1 ...
 $ ALB     : num [1:418] 2.6 4.14 3.48 2.54 3.53 3.98 4.09 4 3.08 2.74 ...
 $ ALKPHOS : num [1:418] 1718 7395  516 6122  671 ...
 $ ASCITES : num [1:418] 1 0 0 0 0 0 0 0 0 1 ...
 $ BILI    : num [1:418] 14.5 1.1 1.4 1.8 3.4 0.8 1 0.3 3.2 12.6 ...
 $ CHOL    : num [1:418] 261 302 176 244 279 248 322 280 562 200 ...
 $ EDEMA   : num [1:418] 1 0 1 1 0 0 0 0 0 1 ...
 $ EDTRT   : num [1:418] 1 0 0.5 0.5 0 0 0 0 0 1 ...
 $ HEPMEG  : num [1:418] 1 1 0 1 1 1 1 0 0 0 ...
 $ TIME    : num [1:418]  400 4500 1012 1925 1504 ...
 $ PLATELET: num [1:418] 190 221 151 183 136 -9 204 373 251 302 ...
 $ PROTIME : num [1:418] 12.2 10.6 12 10.3 10.9 11 9.7 11 11 11.5 ...
 $ SEX     : num [1:418] 1 1 0 1 1 1 1 1 1 1 ...
 $ SGOT    : num [1:418] 137.9 113.5  96.1  60.6 113.2 ...
 $ SPIDERS : num [1:418] 1 1 0 1 1 0 0 0 1 1 ...
 $ STAGE   : num [1:418] 4 3 4 4 3 3 3 3 2 4 ...
 $ STATUS  : num [1:418] 1 0 1 1 0 1 0 1 1 1 ...
 $ TRT     : num [1:418] 1 1 1 1 2 2 2 2 1 2 ...
 $ TRIG    : num [1:418] 172 88 55 92 72 63 213 189 88 143 ...
 $ COPPER  : num [1:418] 156 54 210 64 143 50 52 52 79 140 ...
> pbc <- data.frame(pbc)
> summary(pbc)
      AGE             ALB           ALKPHOS         ASCITES      
 Min.   :26.28   Min.   :1.960   Min.   :   -9   Min.   :-9.000  
 1st Qu.:42.83   1st Qu.:3.243   1st Qu.:   -9   1st Qu.:-9.000  
 Median :51.00   Median :3.530   Median : 1009   Median : 0.000  
 Mean   :50.74   Mean   :3.497   Mean   : 1478   Mean   :-2.225  
 3rd Qu.:58.24   3rd Qu.:3.770   3rd Qu.: 1708   3rd Qu.: 0.000  
 Max.   :78.44   Max.   :4.640   Max.   :13862   Max.   : 1.000  
      BILI             CHOL            EDEMA            EDTRT       
 Min.   : 0.300   Min.   :  -9.0   Min.   :0.0000   Min.   :0.0000  
 1st Qu.: 0.800   1st Qu.:  -9.0   1st Qu.:0.0000   1st Qu.:0.0000  
 Median : 1.400   Median : 252.5   Median :0.0000   Median :0.0000  
 Mean   : 3.221   Mean   : 248.2   Mean   :0.1196   Mean   :0.1005  
 3rd Qu.: 3.400   3rd Qu.: 347.8   3rd Qu.:0.0000   3rd Qu.:0.0000  
 Max.   :28.000   Max.   :1775.0   Max.   :1.0000   Max.   :1.0000  
     HEPMEG            TIME         PLATELET        PROTIME     
 Min.   :-9.000   Min.   :  41   Min.   : -9.0   Min.   : 9.00  
 1st Qu.:-9.000   1st Qu.:1093   1st Qu.:181.0   1st Qu.:10.00  
 Median : 0.000   Median :1730   Median :248.0   Median :10.60  
 Mean   :-1.900   Mean   :1918   Mean   :250.0   Mean   :10.73  
 3rd Qu.: 1.000   3rd Qu.:2614   3rd Qu.:315.5   3rd Qu.:11.10  
 Max.   : 1.000   Max.   :4795   Max.   :721.0   Max.   :18.00  
      SEX              SGOT           SPIDERS           STAGE         
 Min.   :-9.000   Min.   : -9.00   Min.   :-9.000   Min.   :-9.00000  
 1st Qu.:-9.000   1st Qu.: -9.00   1st Qu.:-9.000   1st Qu.:-9.00000  
 Median : 1.000   Median : 90.45   Median : 0.000   Median : 3.00000  
 Mean   :-1.622   Mean   : 89.20   Mean   :-2.067   Mean   :-0.01914  
 3rd Qu.: 1.000   3rd Qu.:135.75   3rd Qu.: 0.000   3rd Qu.: 4.00000  
 Max.   : 1.000   Max.   :457.25   Max.   : 1.000   Max.   : 4.00000  
     STATUS            TRT              TRIG           COPPER     
 Min.   :0.0000   Min.   :-9.000   Min.   : -9.0   Min.   : -9.0  
 1st Qu.:0.0000   1st Qu.:-9.000   1st Qu.: -9.0   1st Qu.: -9.0  
 Median :0.0000   Median : 1.000   Median : 85.0   Median : 50.5  
 Mean   :0.3852   Mean   :-1.167   Mean   : 81.2   Mean   : 70.1  
 3rd Qu.:1.0000   3rd Qu.: 2.000   3rd Qu.:127.8   3rd Qu.:100.8  
 Max.   :1.0000   Max.   : 2.000   Max.   :598.0   Max.   :588.0  
> q()