rongguiwong <[EMAIL PROTECTED]> writes:
> the following the the lower.tri matrix in a file named luxry.car
> and i want to read it in R as a lower.tri matrix.how can i do?
> i have try to use help.search("read"),but no result what i want.
Here's one way:
> x <- scan()
1: 1.000
2: 0.591 1.000
4: 0.356 0.350 1.000
7: -0.098 0.072 0.380 1.000
11: 0.573 0.408 0.382 0.062 1.000
16: 0.156 0.232 0.517 0.424 0.303 1.000
22: 0.400 0.414 0.611 0.320 0.401 0.479 1.000
29: 0.282 0.375 0.512 0.346 0.308 0.463 0.605 1.000
37: 0.519 0.484 0.467 0.167 0.455 0.311 0.574 0.557 1.000
46:
Read 45 items
> m <- matrix(0,9,9)
> m[upper.tri(m,diag=TRUE)] <- x # Yes, upper!
> m <- t(m)
> m[upper.tri(m,diag=TRUE)] <- x
(Assuming that you really want a symmetric matrix. If you want just
the lower triangle, simply omit the last line.)
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907
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