narray

What are the advantages of using Ruby NArray over Array?

由 做~自己de王妃 提交于 2019-12-22 05:12:21
问题 I just came across the NArray library for Ruby -- please excuse my ignorance when asking this question :) What are the advantages of using the NArray library over the standard Ruby Array implementation? I've seen that NArray is geared towards numerical computing, but looking at the API, it looks like there are only a few extensions over Array geared towards numerical values -- nothing that you couldn't do with Array.. Why not just use Array? Is there a huge speed advantage? Is there a huge

Convert vector to integer

由 家住魔仙堡 提交于 2019-12-08 13:04:34
问题 Knowing the multidimensional-array's shape of a vector, how can we convert it into a new vector of one dimension (by flatten the multidimensional-array)? For example considering the following array: arr = [ [ [ nil, nil ], [ nil, nil ], [ nil, nil ] ], [ [ nil, nil ], [ nil, nil ], [ nil, nil ] ] ] arr[0][0][0] = "A" arr[1][0][1] = "B" arr # => [ [ [ "A", nil ], [ nil, nil ], [ nil, nil ] ], [ [ nil, "B" ], [ nil, nil ], [ nil, nil ] ] ] ...where A is the origin and B is the destination of

What are the advantages of using Ruby NArray over Array?

由 纵然是瞬间 提交于 2019-12-05 05:47:34
I just came across the NArray library for Ruby -- please excuse my ignorance when asking this question :) What are the advantages of using the NArray library over the standard Ruby Array implementation? I've seen that NArray is geared towards numerical computing, but looking at the API, it looks like there are only a few extensions over Array geared towards numerical values -- nothing that you couldn't do with Array.. Why not just use Array? Is there a huge speed advantage? Is there a huge memory advantage? Any other advantages over using the regular Ruby Array class? Google didn't really come
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