Since version 7, Mathematica includes gigabytes of curated data relevant to many different fields, including physics, chemistry, graph theory, finance, geography and many more.

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6
votes
2answers
450 views

Problem achiving effect I want with ColorFunction

I want to create a plot showing historical annual maximum and minimum temperatures. I've figured out how to get 10 years of historical temperature data from Wolfram|Alpha. The plot below shows the ...
6
votes
1answer
264 views

Structure of curated data?

Is there a way to programmatically access the structure of curated data present in Mathematica (for each type of information, for example for CountryData or ChemicalData) that would allow access to ...
6
votes
3answers
556 views

Getting all the countries' flags and then using them as chart labels?

What's the code to list all the world's flags? CountryData["G8", "Flag"] works to get those particular flags, but what about all the world's flags? ...
5
votes
2answers
75 views

How to set the timeout value for *Data functions

I haven't measured this precisely but it seems the default timeout value for retrieving EntityValues with *Data functions is in ...
4
votes
2answers
902 views

Using ChemicalData to make molecule graphics

$\require{mhchem}$I would like to take the acetone $\cf{((CH3)2CO)}$ and chloroform $\cf{(HCCl_3)}$ molecules that Mathematica's chemical data provides, and plot them together. I want to show how ...
3
votes
2answers
158 views

Retrieving other information on CountryData

The following input will produce some answers, however how do we find out other details, such as the specific year the result corresponds to, as well as the source from which the data is obtained? ...
3
votes
1answer
102 views

CountryData et al. and associated InputStream

Quick update I found a way to solve this in webMathematica, using CollectStreams. But still, below problem leaves me puzzled, I would very much like to learn how ...
2
votes
1answer
587 views

define the range of Longitude from 0-360 in the World plot from CountryData

How can I change the Longitude range to 0-360 in the such plots? ...
1
vote
0answers
146 views

Failure of CountryData due to connectivity?

Today I started researching the "Four colours theorem" and to do so I need data, regions for example. I tried using the following line: ...
0
votes
1answer
141 views
0
votes
1answer
393 views

Using LatticeData to fill a space with spheres in a face-centered cubic (fcc) lattice packing arrangement

I have a large sphere of radius $R_1$ which I would like to pack with $N$ smaller radius of radius $r_2<R_1$ arranged in a face-centered cubic (fcc) packing arrangement (i.e. Kepler's optimal ...