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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How to download and combine S&P 500 stock prices

I want to download historical S&P 500 stock prices and combined them into one big file, having only one column of date referencing all stocks. Here is what I have do so far. ...
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1answer
99 views

How to provide data to users in a way similar to Mathematica's curated data

How can one go about implementing a custom data backend usable by Mathematica? For example something like CountryData or ...
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52 views

Extracting, Formatting, and Exporting Mathematica AstronomicalData - Is There an Easier Way?

If any of you have tried to use Mathematica AstronomicalData and its newest replacements like StarData, you may already be familiar with the large data issues, and the almost impossible download times....
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Heliocentric coordinates in PlanetData

I tried to use planets' HeliocentricLongitude and I wonder if anyone has any insight on what coordinate system they use. I took vernal equinox times from http://ns1763.ca/equinox/eqindex.html and ...
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259 views

CountryData fails for some tags and properties

The problem has gone, presumably resolved by WRI. See kirma's comment. I'm using Mathematica 10.0.2 for Mac, and for the first time just tried CountryData. ...
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281 views

Why is Neptune missing from AstronomicalData?

An old notebook I've recently started working with has a strange error: Prior to version 8, a figure I generated using Drop[AstronomicalData["Planet"],-1] to ...
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1k 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 ...
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113 views

Is it possible to get CityData for different years?

Is it possible to get CityData for different years? Or get a year of origin of data in CityData?
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427 views

Drawing CountryData groups

I'm sure I'm overlooking something obvious, but I can't draw groups of countries. Here are two countries and two country groups: ...
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157 views

How to refer to amino acids by their single-letter abbreviations in ChemicalData[]?

ChemicalData["AminoAcids"] returns the 20 amino acids. There are some properties available, like the molar mass: ...
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1answer
304 views

GeoGraphics - mapping the Moon

The link here shows a nice way to depict the map of the Moon in Mathematica. But is there a way, to center the Mollweide projection onto the far side of the Moon?
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398 views

Using GraphData to generate all directed graphs with n vertices

Using Combinatorica, it was possible to generate unlabeled (non-isomorphic) directed graphs of $|V|=n$. Here the example is for $n=4$: ...
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69 views

ElementData possible oxidation states

Is there any way to find out the possible oxidation states for a given element? Something like this: ElementData[1, "OxidationStates"] -> {-1, 1} Here is a ...
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98 views

How to ignore year in DateListPlot

I just upgraded to Mathematica 10, and I am trying to get the hang of the new TimeSeries data objects, which are preventing my old strategy of overlaying data from ...
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538 views
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331 views

Getting FTSE indices in Mathematica

I'm not sure if this is the best StackExchange to post this question, but I figured it had more to do with the specifics of Mathematica than Quantitative Analysis so I've posted it here. Basically, I ...
5
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1answer
260 views

AstronomicalData and Planetary Heliocentric (x,y,z) Velocity Components

I'm trying to find data on the heliocentric velocities of planets in our solar system and was directed to Mathematica's AstronomicalData in a previous topic. ...
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96 views

Edit built in symbol

I would like to add new attributes to built in symbols (e.g. ElementData or PolyhedraData) so that I can still call the symbol ...
5
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165 views

Obsolete AstronomicalData - how to convert to PlanetData

As of Mathematica version 10, AstronomicalData is obsolete, deprecated in favor of PlanetData, ...
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150 views

Confused by result of MoonPosition when running on Linux [closed]

I've just switched from Windows to Linux and am running Mathematica 10.1 on Ubuntu 14.04. MoonPosition[] Gives me: ...
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142 views

Inaccurate Heliocentric coordinates of PlanetaryMoonData

I have noticed that the heliocentric coordinates obtained with PlanetaryMoonData are very inaccurate. Fore example, consider the Galilean moons of Jupiter: ...
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68 views

Difficulties using AdministrativeDivisionData and Entities: Who cures the curator?

Part 1: Difficulties using Entities Happily realizing that there is a lot of curated data "under the hood" in Mathematica I wanted to access population data for some Administrative Divisions in ...
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94 views

Is there a problem with some of the curated Star Data?

I'm not really sure if I'm doing something wrong, or if there's a problem with some of the Mathematica curated data on stars. My problem is this: I'm trying to find the location (latitude and ...
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236 views

Does Mathematica support collaborative filtering and recommendation systems?

Does Mathematica support collaborative filtering and recommendation systems such as can be found in Apache Mahout? I could not find any resources about advanced data mining techniques, beyond ...
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130 views

Creating a PolyhedronData[] structure for custom polyhedra [duplicate]

The PolyhedronData[] structure is wonderfully rich. I would like to create data for my own polyhedra, not any of the many that Mathematica provides. Is this ...
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2answers
182 views

How to turn a colour entity into a colour directive?

I am not experienced with Wolfram Knowledgebase queries and working with entities. What is the "correct" way to convert a colour entity into a colour directive? Example: ...
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167 views

Coordinates for multiple countries

I am trying to plot polygons for multiple countries, say "UnitedStates" and "Canada". US data is generated thus: ...
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2answers
433 views

Find all synonyms of word X that rhyme with word Y

Given two words x and y, I'd like to find the set of all words that rhyme with x and are synonymous with y. Is this possible with WordData or ...
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2answers
152 views

Use the value of a cell in a table as the argument to a function

I just got Mathematica from my school and I'm trying to learn the basics. How could I use the value of a cell in a table (as in Insert->Table) and pass it as an argument to a function whose value is ...
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194 views

MovingMap maps to second level unexpectedly

I'm trying to build a financial indicator in mathematica. I import some historical data ...
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1answer
160 views

Render Graphics3D of anatomical data in color

I am trying to render a bone structure in color in Mathematica 10.3, but none of the obvious methods seem to work: ...
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373 views

Should we invest in Apple?

Ticker[comp_String] := Interpreter["Company"][comp] /. Entity[_, x_] :> x ticks = Ticker /@ {"Apple", "Google"} {"NASDAQ:AAPL", "NASDAQ:GOOGL"} ...
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173 views

Initializing FinancialData indices … never finishes

Bug introduced in 10.3.0 and fixed in 10.3.1 Retrieving data using FinancialData became more unreliable in the last couple of months, but simply retrying was ...
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102 views

SpaceFillingMolecularPlot using CAS number of a compound

When I tried to get 3D graphics for molecule CAS52364-73-5 using Mathematica 10 it produced following result ...
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1answer
206 views

Access curated or locally stored data with curated data functions?

Say I have a toy package, something like: ...
4
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1answer
61 views

Accessing Coordinates of Astronomical Data, e.g. Declination of all Galaxies

I am trying to access the coordinate information of all galaxies, stars, etc, available to the new astronomical data incorparated to Mathematica. However, the suggested (documented) approach fails. ...
4
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1answer
366 views

Map of all graphs obtainable with GraphData?

I've been trying to put together an answer to another question, but I am stuck, so I decided to post this question instead. Mathematica contains (among its curated data) information on definition, ...
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1answer
242 views

How to extend dictionary.txt

How to extend the default dictionary.txt for Dictionarylookup to all words? For example, first I ...
4
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1answer
134 views

Cloud cover fraction

I need to make use of Mathematica's WeatherData functionality, the CloudCoverFraction property, specifically. However, it does ...
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88 views

Increasing resolution in AnatomicalData

In version 10.3 one can get an image of an anatomical structure, such as a brain, using this code: AnatomyData[Entity["AnatomicalStructure", "Brain"], "Image"] ...
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56 views

How to display EntityProperty objects with their CanonicalName?

Is there a way to display EntityProperty objects with their CanonicalName instead of the text they are currently displayed with. ...
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75 views

Combining separate CHColorStructureDiagrams to form one molecular structure

I am trying to attach a fructose molecule to a sucrose molecule by using information obtained from the following ...
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571 views

Curated data sometimes delivered in undefined units

This question may better go to Wolfram, but as it came up on the weekend, I thought I'd try here first. Take a look at the following: ...
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219 views

FinancialData property value at a given date

I was trying to get the volatility value of a specific equity on a given day. Based on the Mathematica Help, the syntax is ...
3
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3answers
182 views

Why is my ListPlot rounding up fractions?

I'm trying to create a ListPlot that compares a country's poverty fraction with its cellular phone fraction. I'm using this to create the table. ...
3
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3answers
330 views

Median household income for each county in Maryland

I found that Wolfram|Alpha knows the median household income for every county in the US. I wanted to get a list of all counties in Maryland, and the median income in each county. The only way I could ...
3
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2answers
331 views

Plot “OilReserves” using CountryData from 1985 until 2014

I am newer using Mathematica to plot with the Function: CountryData, I am trying to plot "OilReserves" in "UnitedKingdom" from 1985 until 2014. I don't know how to do it, please help me!
3
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2answers
149 views

Retrieving coordinate positions using ChemicalData for input to quanutm modelling software

I am trying to set up an input file for a quantum chemical modelling software. How do I obtain the (XYZ) coordinate positions in Angstroms using information obtained using ChemicalData. Have some ...
3
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2answers
203 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
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2answers
137 views

Something wrong with the way units are handled in V10

(This applies only to version 10) I obtain these two properties of silicon: a = ElementData[14, "CrustAbundance"] b = ElementData[14, "MeteoriteAbundance"] both ...