> On Feb 27, 2015, at 4:49 AM, marKo <mton...@ffri.hr> wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Gee. That simple. I knew that! > Thanks a lot. > Essentially, I needed only the diagonal elements. > Easily solved by: > > diag(outer( X=v1,Y=v2, FUN= fV) > > I am sure that there are simpler options, but that works like a charm.
If I had understood that you wanted only the values with v1 and v2 paired, then I would have suggested using apply: > mapply(fV, v1, v2) [1] 0.8333333 1.6666667 2.5000000 3.3333333 4.1666667 — David. > > Thanks a lot. > > Cheers, > > Marko > > > > On 02/27/2015 06:49 AM, David Winsemius wrote: >> >>> On Feb 26, 2015, at 1:49 PM, marKo <mton...@ffri.hr> wrote: >>> >>> v1<-c(1:5) >>> v2<-c(1:5) >>> >>> f1<-function (x) {v1*x+v2*x^2} >>> >>> The problem is that integrate(f1, 0, 1) does not work. >>> I does not, even if a pas the arguments (v1, v2) >>> >>> f1<-function (x, v1, v2) {v1*x+v2*x^2} >>> >>> or if i try to vectorize the function >>> >>> f1<-Vectorize(function(x, v1, v2){v1*x+v2*x^2}, >>> vectorize.args=c("v1", "v2")) >>> >>> integrate(f1, 0, 1) gives an error: >> >> >>> f1<-function (X, Y) integrate( function(x) {X*x+Y*x^2}, 0, 1)$value >>> fV<-Vectorize(f1) >>> outer( X=v1,Y=v2, FUN= fV) >> [,1] [,2] [,3] [,4] [,5] >> [1,] 0.8333333 1.166667 1.5 1.833333 2.166667 >> [2,] 1.3333333 1.666667 2.0 2.333333 2.666667 >> [3,] 1.8333333 2.166667 2.5 2.833333 3.166667 >> [4,] 2.3333333 2.666667 3.0 3.333333 3.666667 >> [5,] 2.8333333 3.166667 3.5 3.833333 4.166667 >> >> — >> David Winsemius, MD >> Alameda, CA, USA >> > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1 > > iQIcBAEBAgAGBQJU8D2hAAoJEJcj4KySkkQsblsQAK2cpOG/qsrXP6vK9Zq3UMkc > 6jNQ9PQqvT1H8WyR8rNTY1Bis7npxgNh0avRYOrsRf1D3u9frNjBAhT2v0mMW+Uk > LRvHpER1EnIZhdFcmE7uOUNsaU/IquicVVWAXgVVu2/yUW8nJZ4FQ2wkKDLlTY97 > dyNMj5i1r5DWBtfUbCtTiSJz1G16DXiJBsk0Zi1Z9zT71evOh2tIfztv1qSSTOLJ > gjWbpefYThypPq/170+Eqv3BOigjQd1ljeyXVgGrs/vMTX6a9ZL5KDUYsR7QnhmH > ZiHNUTcUpAFb3QGLNVM6ULd7GfzDKgG7rH8JwokYzi/IIsm5aTNfY7dUCGySx+dL > 4tOQKe6LjFGIfqPHeZXXs1ErYrIs7L//z+n9ZfHKT0RH7zAoakrzkvFxsBx2LU7z > Wziv3/eMN65WOPFpH2puaUQrandbmpDujuZS0PfGBc5/hrIpeCejm7LfHocck6MT > v+J4o05+a3jMSdZdtbNXv6q5z+tXaEdThKz77VmFwMQWzFto8QFbe5dOKP9EO6Vn > 9+u0gSswtE43PXkn3Egj6HmhrTkREc3lnHsh/0E32+g4UsWxVlyLvfCrm9s4zKOZ > fGjIpaUPUp2AkNGAa8BhLqO6LJVaU2/wCvcYIRAbv1Uck2XK9lppKsvFEUuRz9Uk > kPaGAS9OJgsUS8kMVpMf > =v7j4 > -----END PGP SIGNATURE----- David Winsemius, MD Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.