R help - Jan 2008 - Need help on distance matrix

Hi

I have a data like this.

79

77.51

79.64

84.08

71.6

90.22

91.46

89.49

94.51

97.45

97.99

97.86

69.88

77.44

72.44

74.21

72.54

78.27

82.03

78.62

80.4

85.97

86.22

84.04

I try to do a distance matrix. I get error if I run the following program:

D2 <- matrix(0,n,n)

for (i1 in 1:n)

for (i2 in 1:n)

D2[i1,i2] <- (X[i1,1]-X[i2,1])^2 + (X[i1,2]-X[i2,2])^2 

 

I need help

thanks

 

 

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