Displaying 2 results from an estimated 2 matches for "1000x1".
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1000x
2009 Sep 18
1
Incorrect Dimension
...= function ( gen ) matrix ( if (gen[j, i] == 0) al1 [i, 1] + al1 [i, 1]
else if (gen [j, i] == 1) al1 [i, 1] + al2 [i, 1] else if (gen [j,
i] == 2) al2 [i, 1] + al2 [i, 1] else 999, ncol = loc, nrow = ind)
g2 <= function ( gen ) sample (b1, 1, re = T) #b1 is 1x3 and came from a
vector 1000X1 (e.g b1 <- c(x [1000,1]...)
xx <= if (runif (1) >= (1 - r2)) g1 else g2
g [j, i] <= xx (gen [j, i]) #g was already generated as an 0 matrix
(1000x200) and i would like to replace ##by those functios
}
}
Thank you very much
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2010 Sep 03
1
Fourteen patches to speed up R
I've continued to work on speeding up R, and now have a collection of
fourteen patches, some of which speed up particular functions, and
some of which reduce general interpretive overhead. The total speed
improvement from these patches is substantial. It varies a lot from
one R program to the next, of course, and probably from one machine to
the next, but speedups of 25% can be expected in