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Re: How to make {f,g}[a,b,c] to become
*To*: mathgroup at smc.vnet.net
*Subject*: [mg105336] Re: [mg105301] How to make {f,g}[a,b,c] to become
*From*: Bob Hanlon <hanlonr at cox.net>
*Date*: Sat, 28 Nov 2009 01:07:54 -0500 (EST)
*Reply-to*: hanlonr at cox.net
Outer[#2[#1] &, {a, b, c}, {f, g}]
{{f[a], g[a]}, {f[b], g[b]}, {f[c], g[c]}}
Outer[CountryData[#1, #2] &, CountryData[],
{"Name", "GDP",
"Population"}] ==
({CountryData[#, "Name"],
CountryData[#, "GDP"],
CountryData[#, "Population"]} & /@ CountryData[])
True
Bob Hanlon
---- Lawrence Teo <lawrenceteo at yahoo.com> wrote:
=============
I have a question. How to make {f,g}[a,b,c] to become {{f[a],g[a]},{f
[b],g[b]},{f[c],g[c]}}?
I want to do {GPD, Population} for all countries.
Something similar to the following...
{CountryData[#, "GDP"] &, CountryData[#, "Population"] &} /@
CountryData[]
It ends up in the form of {f,g}[a,b,c,d,...]. I need a way to
'distribute' the country name into the GDP and Population portion.
Thanks.
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