Jeff's approach should be included in the performance hints doc
On Tuesday, October 11, 2016 at 1:04:43 PM UTC-4, Jeff Bezanson wrote: > > If the performance of this matters, it will probably be faster to > iterate over `1:nfields(myt)`, as that will avoid (1) constructing the > array of symbols, (2) looking up the index within the type for that > field. > > On Mon, Oct 10, 2016 at 7:20 PM, K leo <cnbi...@gmail.com <javascript:>> > wrote: > > Thanks so much Mauro. That does it. > > > > On Monday, October 10, 2016 at 10:58:30 PM UTC+8, Mauro wrote: > >> > >> Try > >> > >> for fl in fieldnames(myt) > >> push!(getfield(myt,fl), 0.) > >> end > >> > >> `fieldnames` returns the name of the field as a symbol, thus your > error. > >> > >> On Mon, 2016-10-10 at 16:41, K leo <cnbi...@gmail.com> wrote: > >> > I hope to expand all arrays in a type using something like the > >> > following: > >> > > >> > fields=fieldnames(myType) > >> >> for i=1:length(fields) > >> >> push!(fields[i], 0.) > >> >> end > >> > > >> > > >> > But I get error saying no method matching push!(::Symbol, ::Float64) > >> > > >> > What else can I do for my purpose? >
