November 2017
Beginner to intermediate
366 pages
7h 59m
English
Content preview from R Data Analysis Projects
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Symbolic programming in MXNet
Let us do some symbolic declaration:
> a <- mx.symbol.Variable("a")> aC++ object <0x11dea3e00> of class 'MXSymbol' <0x10c0a79b0>> b <- mx.symbol.Variable("b")> bC++ object <0x10fecf330> of class 'MXSymbol' <0x10c0a79b0>> c <- a + b> cC++ object <0x10f91bba0> of class 'MXSymbol' <0x10c0a79b0>>
As you can see, they are MXSymbol objects.
We need an executor to supply data to it and to get the results:
> arg_lst <- list(symbol = c, ctx = mx.ctx.default(), a = dim(ones.matrix),+ b= dim(ones.matrix), grad.req="null")> pexec <- do.call(mx.simple.bind, arg_lst)> pexecC++ object <0x11d852c40> of class 'MXExecutor' <0x101be9c30>> input_list <- list(a = ones.matrix,b = ones.matrix)> mx.exec.update.arg.arrays(pexec, input_list) ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.