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From: H.F. on 27 Sep 2007 12:56 Thanks a lot. Sure, itrn is loaded first. na and fs are defined frist before being used here. Actually, I ran the code successfully using MATLAB 2006. I only revised the prestd to mapstd, which can not be used in R2007a. I didn't revise the rest part of my codes. Greg Heath <heath(a)alumni.brown.edu> wrote in message <1190909583.528111.280740(a)50g2000hsm.googlegroups.com>... > On Sep 26, 8:55 pm, "H.F. " <mailto...(a)163.com> wrote: > > Thanks a lot for your reply. > > > > I used nn = newff( minmax( itrn ), na, fs, 'trainlm' ) to > > creat a neural network nn, where itrn is the input, na > > defines the network architecture, and fs gives the transfer > > functions. > > Like Bill Clinton, you think the word "exactly" is ambiguous. > > How, exactly, did you define na and fs? > > > I use the default performance function mse. > > > > I also tried to searched a file named "boiler_perform" in > > my whole computer disk, but nothing found. > > > > Greg Heath <he...(a)alumni.brown.edu> wrote in message > > <1190850995.175316.192...(a)22g2000hsm.googlegroups.com>... > > > On Sep 26, 3:48 pm, "H.F. " <mailto...(a)163.com> wrote: > > > > Hi, > > > > I use MATLAB R2007a. When I use the function newff, I > > > > encountered a problem that said "Undefined function or > > > > variable 'boiler_perform'". How to fix it? > > > What, exactly, did you do when you "used" newff? > > Hope this helps. > Greg >
From: Greg Heath on 27 Sep 2007 16:14 On Sep 27, 12:56 pm, "H.F. " <mailto...(a)163.com> wrote: > Thanks a lot. > > Sure, itrn is loaded first. na and fs are defined frist > before being used here. Argggggh! What VALUES did you use for maxmin(itrn), na and fs? It's probably a moot point, but I try not to overlook anything. Greg -----SNIP
From: H.F. on 27 Sep 2007 16:38 the itrn is a matrix of 20*385 dimension. The na is [n 1], n can be varied. But every time I use newff, a value is assigned to it, say 1. fs is {'tansig', 'purelin'}. Greg Heath <heath(a)alumni.brown.edu> wrote in message <1190924092.145766.251920(a)y42g2000hsy.googlegroups.com>... > On Sep 27, 12:56 pm, "H.F. " <mailto...(a)163.com> wrote: > > Thanks a lot. > > > > Sure, itrn is loaded first. na and fs are defined frist > > before being used here. > > Argggggh! > > What VALUES did you use for maxmin(itrn), na and fs? > > It's probably a moot point, but I try not to overlook > anything. > > Greg > > -----SNIP > >
From: H.F. on 27 Sep 2007 16:54 in fact, the value of na, fs is not related with this error at all. I also tried nn = newff( [0 1],[10 1], {'tansig', 'purelin'}, 'trainlm' ) in the command window, the same error occurs. Greg Heath <heath(a)alumni.brown.edu> wrote in message <1190924092.145766.251920(a)y42g2000hsy.googlegroups.com>... > On Sep 27, 12:56 pm, "H.F. " <mailto...(a)163.com> wrote: > > Thanks a lot. > > > > Sure, itrn is loaded first. na and fs are defined frist > > before being used here. > > Argggggh! > > What VALUES did you use for maxmin(itrn), na and fs? > > It's probably a moot point, but I try not to overlook > anything. > > Greg > > -----SNIP > >
From: H.F. on 28 Sep 2007 10:06
Who knows? "H.F. " <mailtofly(a)163.com> wrote in message <fdh5ad$kg4 $1(a)fred.mathworks.com>... > in fact, the value of na, fs is not related with this error > at all. I also tried nn = newff( [0 1],[10 1], > {'tansig', 'purelin'}, 'trainlm' ) > in the command window, the same error occurs. > > Greg Heath <heath(a)alumni.brown.edu> wrote in message > <1190924092.145766.251920(a)y42g2000hsy.googlegroups.com>... > > On Sep 27, 12:56 pm, "H.F. " <mailto...(a)163.com> wrote: > > > Thanks a lot. > > > > > > Sure, itrn is loaded first. na and fs are defined frist > > > before being used here. > > > > Argggggh! > > > > What VALUES did you use for maxmin(itrn), na and fs? > > > > It's probably a moot point, but I try not to overlook > > anything. > > > > Greg > > > > -----SNIP > > > > > |