R version 2.14.1 (2011-12-22)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i386-apple-darwin9.8.0/i386 (32-bit)

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> setwd("/Users/breannawalker/Desktop")
> Calibrated AIS<-read.table("BR_Bre_R_Data.txt")
Error: unexpected symbol in "Calibrated AIS"
> Calibrated_AIS<-read.table("BR_Bre_R_Data")
Error in file(file, "rt") : cannot open the connection
In addition: Warning message:
In file(file, "rt") :
  cannot open file 'BR_Bre_R_Data': No such file or directory
> Calibrated_AIS<-read.table("BR_Bre_R_Data.txt", header=T)
Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings,  : 
  line 2 did not have 13 elements
> Calibrated_AIS<-read.table("BR_Bre_R_Data.txt")
Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings,  : 
  line 2 did not have 13 elements
> Calibrated_AIS<-read.table("BR_Bre_R_Calibrated_AIS_Data.txt")
Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings,  : 
  line 2 did not have 13 elements
> Calibrated_AIS<-read.table("BR_Bre_R_Calibrated_AIS_Data.txt")
Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings,  : 
  line 1 did not have 13 elements
> Calibrated_AIS<-read.delim("BR_Bre_R_Calibrated_AIS_Data.txt")
> Calibrated_AIS
    Date   TOD      Waypoint           Name       Type Range
1  2-May 11:39 Kellett Bluff    M.V.THOR IN Cargo Ship  4.81
2  2-May 11:39 Kellett Bluff         CHELAN  Passenger  7.91
3  2-May 11:39 Kellett Bluff        Unknown    Unknown 14.39
4  2-May 11:39 Kellett Bluff        Unknown    Unknown 14.25
5  2-May 11:39 Kellett Bluff        Unknown    Unknown 18.87
6  2-May 13:52    Turn Point           <NA>       <NA> 27.00
7  2-May 13:52    Turn Point           <NA>       <NA> 27.00
8  2-May 13:52    Turn Point           <NA>       <NA> 27.00
9  2-May 13:52    Turn Point           <NA>       <NA> 27.00
10 2-May 15:06 Boundary Pass           <NA>       <NA> 27.00
11 2-May 15:06 Boundary Pass           <NA>       <NA> 27.00
12 2-May 17:03 Kellett Bluff        Unknown    Unknown 10.15
13 2-May 17:03 Kellett Bluff NAVIOS HYP\xc9 Cargo Ship 10.06
14 2-May 17:03 Kellett Bluff        Unknown    Unknown 11.07
15 2-May 17:03 Kellett Bluff        Unknown    Unknown 10.29
16 2-May 17:03 Kellett Bluff        Unknown    Unknown 10.90
17 4-May 15:32    Turn Point     ELM GALAXY     Tanker  0.76
18 4-May 15:32    Turn Point        Unknown    Unknown  6.09
19 4-May 15:32    Turn Point QUEEN OF C\xc9  Passenger  5.87
20 4-May 15:32    Turn Point COASTAL CE\xc9  Passenger  6.26
21 4-May 15:32    Turn Point        Unknown    Unknown  6.27
22 4-May 15:32    Turn Point    SPRIT OF VI  Passenger  6.71
23 4-May 15:32    Turn Point        Unknown    Unknown  8.32
24 4-May 15:32    Turn Point  SKEENA QU\xc9  Passenger  8.95
25 4-May 15:32    Turn Point       ROSEMARY Cargo Ship 10.21
26 4-May 15:32    Turn Point        Unknown    Unknown 11.22
27 4-May 15:32    Turn Point        Unknown    Unknown 13.82
28 4-May 15:32    Turn Point        Unknown    Unknown 19.44
   Calibrated_Gain_Setting_dB Contrast_Difference_dB  Log_range RL_dB
1                         125                   13.2  0.6821451 111.8
2                         125                   13.2  0.8981765 111.8
3                         125                   13.2  1.1580608 111.8
4                         125                   13.2  1.1538149 111.8
5                         125                   13.2  1.2757719 111.8
6                         125                   22.7  1.4313638 102.3
7                         125                   22.7  1.4313638 102.3
8                         125                   22.7  1.4313638 102.3
9                         125                   22.7  1.4313638 102.3
10                        125                   17.1  1.4313638 107.9
11                        125                   17.1  1.4313638 107.9
12                        125                    0.0  1.0064660 125.0
13                        125                    0.0  1.0025980 125.0
14                        125                    0.0  1.0441476 125.0
15                        125                    0.0  1.0124154 125.0
16                        125                    0.0  1.0374265 125.0
17                        135                    9.7 -0.1191864 125.3
18                        135                    9.7  0.7846173 125.3
19                        135                    9.7  0.7686381 125.3
20                        135                    9.7  0.7965743 125.3
21                        135                    9.7  0.7972675 125.3
22                        135                    9.7  0.8267225 125.3
23                        135                    9.7  0.9201233 125.3
24                        135                    9.7  0.9518230 125.3
25                        135                    9.7  1.0090257 125.3
26                        135                    9.7  1.0499929 125.3
27                        135                    9.7  1.1405080 125.3
28                        135                    9.7  1.2886963 125.3
> attach(Calibrated_AIS)
> names(Calibrated_AIS)
 [1] "Date"                       "TOD"                       
 [3] "Waypoint"                   "Name"                      
 [5] "Type"                       "Range"                     
 [7] "Calibrated_Gain_Setting_dB" "Contrast_Difference_dB"    
 [9] "Log_range"                  "RL_dB"                     
> boxplot(RL_dB)
> #Linear Regression
> model1<-lm(Waypoint~Range+TOD+Contrast_Difference_dB+RL_dB)
Error in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : 
  invalid to change the storage mode of a factor
In addition: Warning message:
In model.response(mf, "numeric") :
  using type="numeric" with a factor response will be ignored
> model1<-(Range~RL_dB)
> model1
Range ~ RL_dB
> 
> model1<-lm(Range~RL_dB)
> 
> model1

Call:
lm(formula = Range ~ RL_dB)

Coefficients:
(Intercept)        RL_dB  
    97.3821      -0.7088  

> model2<-lm()