> Hi
> Mauro - thanks for that as that makes it clear whats happening under the
> bonnet. So, what if you then wanted to sum...
> 1.4827
> 1.48069
> 0.884897
> 1.22739
> .... is that possible or am I being a bit dumb here.
Just add another sum(ans) after below two statements, that then sums the
>> 4-element Array{Float64,1}:
>> 1.4827
>> 1.48069
>> 0.884897
>> 1.22739
> On Thursday, 12 March 2015 10:59:34 UTC, Mauro wrote:
>>
>> > Can I still sum?
>>
>>
>> Maybe it's clearer like this:
>> julia> [ x[i-4:i-1] for i = [6,7,8]]
>> 3-element Array{Array{Float64,1},1}:
>> [0.392471,0.775959,0.314272,0.390463]
>> [0.775959,0.314272,0.390463,0.180162]
>> [0.314272,0.390463,0.180162,0.656762]
>>
>> julia> sum(ans)
>> 4-element Array{Float64,1}:
>> 1.4827
>> 1.48069
>> 0.884897
>> 1.22739
>>
>> So 1.4827 = ans[1][1]+ans[2][1]+ans[3][1]
>>
>> > On Thursday, 12 March 2015 09:50:19 UTC, Mauro wrote:
>> >>
>> >> > const x = rand(8)
>> >> > [ x[i-4:i-1] for i = 6] .. this gives me a 4 element array.
>> >>
>> >> This seems a bit odd, what are you trying to achieve here? Anyway it
>> >> produces a Array{Array{Float64,1},1}, i.e. an array of arrays
>> containing
>> >> one array.
>> >>
>> >> > I now want to sum the ouput - this is what I tried ...
>> >> > sum([ x[i-4:i-1] for i = 6]) ... what am I doing wrong?
>> >>
>> >> This sums all first elements, second elements, etc. As there is only
>> on
>> >> array in the array, it doesn't do all that much.
>> >>
>>
>>
