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

learn more… | top users | synonyms (1)

42
votes
4answers
4k views

How to make a 3D globe?

There are many ways to create a 3D Earth that is rotatable (see here, here, related here), but most of them have some drawbacks. These issues mainly stem from either ...
39
votes
5answers
4k views

How do I plot coordinates (latitude and longitude pairs) on a geographic map?

I'm attempting for the first time to create a map within Mathematica. In particular, I would like to take an output of points and plot them according to their lat/long values over a geographic map. I ...
30
votes
3answers
655 views

Is there a Mathematica API for the functions.wolfram site?

Is there a Mathematica API for the functions.wolfram site? If there's not, has anyone implemented a web scraper for it? For example it would be nice to be able to access ...
25
votes
4answers
575 views

Is it possible to invoke the OEIS from Mathematica?

I had always wondered if there might be a way to write a function, which I'll call OEISData[], that more or less works as a curated data function for The On-Line ...
22
votes
1answer
309 views

How to save ChemicalData queries so that they are available immediately on notebook load?

If I put some viscosity (or density, ...) lookups in my notebook, such as: ...
19
votes
2answers
324 views

Can Mathematica determine part-of-speech for each word in a text?

I've found that WordData has a database of English words and their possible parts of speech. But some words are ambiguous, e.g. result can be a verb or a noun: ...
18
votes
2answers
371 views

Speed of curated data calls in Version 10

Curated datasets underwent a significant overhaul in version 10, primarily in the way content is delivered in the form of Objects and Entities. Additionally, it appears that this change in content ...
18
votes
2answers
1k views

Weather Maps with Mathematica

I've been trying to set up a weather map with Mathematica similar to what NOAA publishes in their website. So far I've been successful to bring the data over and extend it across the whole picture ...
18
votes
1answer
609 views

xkcd: Geohashing in Mathematica

On May 21, 2008, an xkcd comic proposed a method for creating a random, local meeting place that can't be determined until the day of the meeting. This method is usually used for xkcd fan events, ...
17
votes
3answers
850 views

Highlighting individual countries on a world map

Consider the following list of countries which I would like to highlight on a world map: ...
17
votes
1answer
995 views

The Orbit and Perigee of the Flamsteed comet

Historical context This year we have the 330-th anniversary of the Battle of Vienna - one of the great formative events of European history, it took place on September 12, 1683. Kara Mustafa, Grand ...
16
votes
2answers
578 views

Built-in Mathematica data: are they cached? how to speed up the loading?

Mathematica has numerous built-in data for science and math. Every first call to a data function in a new Mathematica session will "re-initialize indices" (download the data). Is there a way to store ...
15
votes
4answers
783 views

Finding all dictionary words that can be made with a given set of characters (Wordfeud/Scrabble)

This is a slightly more involved variant of this recent question. By sheer coincidence I happened to have been building a Wordfeud (Scrabble clone) game in Mathematica. My interactive Wordfeud ...
15
votes
1answer
362 views

CountryData and the areas of the world

If I add the WaterArea and the LandArea of the world, I get the same number as if I asked for the total area of the world in the first place: ...
14
votes
4answers
1k views

World plot without borders between countries

I would like to plot the world map without the countries' borders and just the coastlines (in Mathematica 8). I need to overlap a temperature contour plot on the world map. When I plot country data ...
13
votes
5answers
4k views

Standard deck of 52 playing cards in curated data?

I am not sure how to find out what all is included as curated data. For example, are the individual images of each of the 52 cards in a standard deck of playing cards included? If not, is there a way ...
13
votes
2answers
556 views

Animating transition between all graph representations obtained from curated data

Pappus graph is one of many graphs whose various data is contained within Mathematica. Mathematica typically keeps several ways of representing such graphs: ...
13
votes
1answer
329 views

Find elements in a decay chain using IsotopeData

I am trying to write a program using the Mathematica function IsotopeData, but am finding the code troublesome. Due to my (relative) familiarity with Python, I am ...
12
votes
4answers
480 views

Calculate proportion of values for dates

At work, we were discussing when is it the best time to change to winter tires for bikes and/or cars. Using WeatherData[] and ...
12
votes
3answers
794 views

Background image in a polygon / CountryData

Is it possible to use a background image in a polygon without rasterizing the polygon? I tried with textures, but they seem to be viable only for simple polygons. I want to put a flag as the ...
12
votes
1answer
697 views

Why does CUDAQ (from CUDALink) download data from Wolfram servers?

I understand why functions like ElementData or CountryData need to download up-to-date data when first launched. However, when ...
12
votes
2answers
349 views

How is AstronomicalData interpreting its date arguments?

It is easy to confirm that the AstronomicalData is not interpreting its arguments as UTC (or "GMT", which is, in any case, ambiguous) dates by verifying that the ...
12
votes
1answer
222 views

Is there a way to get AbsoluteTime to correctly report absolute time differences?

Absolute time supposedly reports the "total number of seconds" between two dates, but it does not. For example because of the leap second applied at 2012-06-30T23:59:60Z ...
11
votes
4answers
548 views

Why do some CountryData flags render at low resolution?

This question is related to data analysis introduced here Why do some flag images from the CountryData dataset render at very low resolution both in Front End and ...
11
votes
1answer
267 views

Overloading second argument of CountryData

For convenience I'm trying to add an extra property to CountryData ...
11
votes
1answer
353 views

How does Mathematica know my location?

On the AstronomicalData page in the online reference, it says for AstronomicalData["Sun", "NextRiseTime"] that it finds the ...
10
votes
1answer
376 views

Can a LatticeData image be displayed in a space filled fashion

I'd like a FaceCenteredCubic image as in the in LatticeData docs, but space packed, and cropped on all the boundaries, so that it illustrates the geometry of the calculation that leads to the ...
10
votes
1answer
183 views

Why do DateList, DateString, and AstronomicalData ignore $TimeZone?

My reading of the documentation for DateList and DateString lead me to believe that both functions use ...
9
votes
2answers
2k views

Problem with Financial Data

I'm following http://reference.wolfram.com/mathematica/ref/FinancialData.html I get the following: In[6]:= DateListLogPlot[FinancialData["^DJI", All]] During ...
9
votes
1answer
194 views

How can I convert the dates returned by FinancialData into decimal representation?

I'm trying to run a regression using Fit on the output of FinancialData["SPY", "Jan. 1, 2011"]. However, the dates returned ...
9
votes
1answer
236 views

How do I determine astronomical transit times?

Mathematica, through the "legacy" Scientific Astronomer package, used to have the ability to easily determine accurate transit times of astronomical objects simply, with ...
9
votes
3answers
365 views

Why is AstronomicalData so slow?

I'm having trouble getting some pretty simple functions using AstronomicalData to perform at anywhere near the speed I need them to. For example, I have many ...
8
votes
2answers
682 views

How could I generate words starting with P,h,D?

A friend of mine is a PhD candidate and posted a picture on Facebook with funny words starting with 'p', 'h' and 'd' like "Please hire. Desperate" or "Permanent head Damage". I thought I could try and ...
8
votes
1answer
299 views

How to combine more locations (GPS coordinates inside one city) with Google map?

I have a list of GPS coordinates.E.g. GPSList = {{47.680800, 17.626446}, {47.681078, 17.627283}, {47.682759, 17.631810}}; I would like to crate a Google Map ...
8
votes
1answer
290 views

How to provide your own example data for a custom package?

A nice feature of the mathematica documentation is the copious use of ExampleData in illustrating functionality. I would like to provide some example data for a ...
8
votes
2answers
267 views

WordData for other languages

Mathematica already includes dictionaries for a lot of languages. What I am looking for is a handy semantic/grammatic database for Hungarian, just like WordData for ...
7
votes
2answers
212 views

What do AstronomicalData's “SetTime” and “RiseTime” values refer to?

What astronomical event do AstronomicalData's "NextRiseTime", "NextSetTime", ...
7
votes
1answer
272 views

Find a word's linguistic pronunciation

Is there a way to get a word's linguistic pronunciation given the word as a string? I would like a function LingusticPronunciation such that, for example, ...
7
votes
1answer
941 views

Interactive steam tables and phase diagrams in Mathematica

I teach an undergraduate course in Thermodynamics and I would love to use Mathematica to demonstrate the various engineering processes that involve the expansions and compressions of steam and common ...
7
votes
1answer
344 views

Computing Many Slow I/O Operations

In working on a custom stock screener, I often need to run mathematica code like this: ...
7
votes
1answer
68 views

How can access to curated data needed by GeoRegionValuePlot be speeded up?

Seems that GeoRegionValuePlot requests data from the internet multiple times to process its plot. As an example, let's graph smoking per capita worldwide. ...
6
votes
2answers
373 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
3answers
452 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? ...
6
votes
3answers
219 views

How do I find the number of countries that have a type of industry?

I am trying to find the number of countries that have a certain type of industry. Currently, I have this code: ...
6
votes
2answers
254 views

Why is CityData[All, “Coordinates”] failing?

When I evaluate CityData[All, "Coordinates"] Mathematica returns {Missing["NotAvailable"], Missing["NotAvailable"]} ...
6
votes
3answers
244 views

Determining the dates of days

I'm trying to use WeatherData[] to give me (not sure how) the temperature, humidity, wind-speed, cloud cover... at a certain location. I only want the information ...
6
votes
1answer
327 views

Find the list of weather stations for specified cities

I wrote some code which retrieves temperature data from three cities every hour for five days. My problem is that the default station from which WeatherData[] gets ...
6
votes
3answers
295 views

Export Graph to PDF

I know that I exported Graphs to PDFs before but it doesn't seem to work any more. I tried K5 = GraphData[{"Complete", 5}] Export["K5.PDF", K5] And I get a PDF ...
6
votes
1answer
82 views

Duplicated output from chemical curated data

I just discovered something rather odd while using chemical curated data in Mathematica. I tried to extract EdgeRules for some molecules and some molecules gave me ...
6
votes
1answer
206 views

Under what conditions does FinancialData return a ::notent message?

I tried retrieving FinancialData for a few companies but when I tried doing it for NTDOY, I couldn't. As of 25/12/2012, querying ...