Questions tagged [entity]
Questions about Entity expressions and the use of standardized representations of specific real-world entities.
9
votes
1answer
181 views
Is it possible to restrict the arguments for a function to a specific entity type?
I'm trying to wrap my head around how to work with Mathematica for building (computable) domain specific knowledge. One particular thing I didn't quite understand is how to create symbols for ...
4
votes
2answers
488 views
How can I get the time zone of a US ZIP code?
There does not seem to be a direct way to extract the time zone for a ZIP code. Currently, I am first mapping the ZIP code to the states, and then getting the time zones for those states.
...
1
vote
0answers
37 views
Extracting info from Entities
I am trying to look up data of entities, but I imagine I'm not doing it right, or have misunderstood the structure.
Here, I try the extract the values of the new SI defining constants, which are ...
7
votes
1answer
106 views
How do I find the list of values for an EntityProperty qualifier?
Cross-Post on Wolfram Community
I have an EntityProperty and I know how to get its list of qualifiers. Now how do I figure out the possible values these can take ...
3
votes
1answer
47 views
How do I find the list of available qualifiers for a given EntityProperty?
If you read the docs for EntityProperty you see it can be used with EntityValue to perform qualified selections of data, ...
7
votes
2answers
140 views
1
vote
1answer
77 views
Convert Entity Property to String
I am doing some work with my own EntityStores as well as the built in Wolfram Entities. After pulling a subset of data, I am wanting to structure it as a dataset ...
5
votes
1answer
53 views
How to submit new state-by-state information to the Data Repository
I'm interested in algorithms for apportioning seats of Congress to states after every decennial Census, for which I'm using Mathematica to test different functions. To this end, I wrote a Notebook ...
3
votes
1answer
46 views
Matching Aspect Ratios between two GeoGraphics with Entities for GeoRange
I'm making a basic 50-state map of population (using a log scale). Given the usual crucible of figuring out what to do with Hawaii and Alaska, I thought I would make the same ...
4
votes
2answers
68 views
3
votes
1answer
135 views
How to convert entity to string?
I have an entity city. For example, I run {city} = GeoNearest["City", GeoPosition[{41.8, -87.7}]] and then I got The entity "...
5
votes
1answer
55 views
Why does Short not affect entity lists?
Short seems not to have an effect on the display of the following list of entities, while it works fine on a list of strings. Why is this?
Here's the copyable code:...
3
votes
1answer
41 views
Unable to convert degree to number in LatitudeLongitude and “City” Entity
I am trying to convert degree to number for some mathematical transformation. Taking London as an example, the following codes can convert the degree into a number without any problems:
Codes that ...
6
votes
2answers
642 views
How to take top 10 built-in function
WolframLanguageSymbol has a property named Frequencies, such as
...
3
votes
1answer
89 views
How to get the satellites launched on a certain day
After getting all satellite names using:
allSatelliteObjects=SatelliteData[];
I see there are a lot of them:
...
1
vote
1answer
93 views
list of dates for vernal equinox
I'm trying to get a list of dates and times of the vernal equinox for the last 30 years (or some other time interval). I'm flailing about and really have gotten nowhere. When I've tried typing ...
0
votes
0answers
33 views
Conditional access to entities in Wolfram knowledge base
I am trying to get the name of stars that are in a range of distances from the Sun. The Input I have tried is:
...
2
votes
0answers
38 views
Timeout in implicit Wolfram|Alpha calls, but WolframAlpha works
In general we expect this to work:
Quantity["Speed of light"]
Quantity[1, "SpeedOfLight"]
And it does because it can make use of Wolfram|Alpha.
Oddly, though, ...
1
vote
1answer
47 views
Why some result of CityData is List[entity]?
Why one entity is a List Object?
There are many such cases.
They are in one level/one region/province.
...
8
votes
1answer
275 views
Change units in PlanetData[“Earth”, “Diameter”] from miles to km
When I enter
AstronomicalData["Earth", "Radius"]
I get Quantity[6.3674447*10^6, "Meters"]
I would have preferred kilometers, ...
7
votes
0answers
107 views
Mistake in Mathematica administrative division data in Africa
I would like to, firstly, report that, I think there are a number of mistakes in the administrative level data. Or, at least, it is not clear to me why there should be differences in some definitions ...
3
votes
0answers
379 views
Why “Inception V3 Trained on ImageNet Competition Data” have 1001 outputs?
There are 6 pre-trained models on ImageNet in NetModel.
...
3
votes
1answer
74 views
What is the syntax for `EntityProperty` `“Date”` and `“DateRange”` Qualifiers?
Does anyone know how to get EntityProperty "Date" and "DateRange" qualifiers to return data?
...
4
votes
3answers
357 views
How to add city markers to a map of Germany?
I'm trying to draw markers for a list of Germany ZIP codes onto a map. Following the official documentation, it seems as if using GeoMarkeron values like
...
4
votes
3answers
183 views
Generate the complement of the Earth's land mass polygons
I would like to get polygon covering of all water area of earth. I though of doing by inverting
Polygon[EntityClass["Country", "LandMasses"]]
How do i invert ...
2
votes
1answer
70 views
ImageIdentify category specification
There is an instance in the reference for ImageIdentify were a category is specified. Here it is:
...
5
votes
1answer
102 views
Cases and Entity
When extracting the "name" of an Entity one has CommonName. Good. Before I discovered this, I simply applied a rule like:
...
23
votes
1answer
726 views
Can I build my own curated data function?
I love the huge curated datasets, but they don't cover everything. I have my own huge dataset which is too much to distribute as an EntityStore so is there a way to ...
2
votes
1answer
80 views
Listing Persons of a Certain Occupation using PersonData
I am trying to generate a list of people that Mathematica knows about that have a certain occupation.
Using the PersonData[] command I can get a list of all 285,...
5
votes
0answers
78 views
Geo data load issues: Texas is missing from GeoRegionValuePlot in v11, but only when mapping US states
UPDATE: this is not a global Mathematica issue, but a data load issue on a local machine. Does anyone know how to clear Geo cache and reload the data?
I've also noticed on this machine that ...
4
votes
1answer
140 views
How to download Entity data for an interval of dates
I am interested in downloading "TropicalStorm" data for hurricanes with the highest "WindSpeed" occurring in the years 1990 ...
3
votes
0answers
59 views
Use of ContainsAny in EntityClass
The documentation page for EntityClass states that
Property values in implicitly defined entity classes may make use of Quantity (and intervals of Quantity) for ...
4
votes
0answers
109 views
List of mathematicians
How to make a list of mathematicians by using Mathematica?
There are $284387$ person entity in Mathematica, but I need only mathematician entity
I tried something like this
...
4
votes
1answer
48 views
How to discover an EntityProperty's qualifiers?
EntityPropertys have a qualifier form in the documentation,
$\text{EntityProperty}\left[\text{type},\text{pname},\left\{\text{qual}_1\to \text{val}_1,\text{qual}_2\...
8
votes
0answers
160 views
Using EntityStore and related functions in a NoSQL-database scenario
In a lot of engineering tasks one ends up with massive amounts of .txt or .csv files from various measurement systems (oscilloscopes, temperature probes etc.) that usually end up on a local or central ...
1
vote
1answer
78 views
Using the Knowledgebase if you don't know the exact name of an EntityProperty
In the Wolfram Knowledgebase, how would you find the precise name of an EntityProperty, without scrolling through the whole list of them?
For example, suppose I ...
2
votes
1answer
117 views
Knowledge Domains
What function will return a list of all the domains in the knowledge representation? The Mathematica reference lists CountryData, CityData, ChemicalData, FinancialData, WeatherData, WordData, ...
0
votes
0answers
27 views
Converting types of administrative data
I want to aggregate the data that Wolfram has on ZIP codes and administrative divisions.
I know that administrative divisions have a ZIPCodes property, but it always seems to be empty.
Is there a ...
2
votes
2answers
313 views
List of extinct animals
There is a list of endangered species
EntityList[EntityClass["Species", "EndangeredSpecies"]]
How to make a list of extinct animals by using Mathematica?
2
votes
1answer
103 views
Number of anatomical entity which are able to obtain a 3D model
There are $83294$ entity in anatomical data
How to find a number of anatomical entity which are able to obtain a 3D model?
for instance, I tried:
5
votes
2answers
125 views
1
vote
0answers
84 views
Changing color of edge and face of polygon [closed]
How can I change color, FaceForm and EdgeForm of Georgia on the folowing map?
...
4
votes
1answer
111 views
How To Improve Mathematica StarData Performance When Compared To AstronomicalData
My tests of using AstronomicalData versus StarData show that StarData requests are 15 times ...
0
votes
0answers
75 views
How to know the meaning of EntityProperty of an Entity [duplicate]
Backgroud:
This is an exactly duplicate post with this.That post have colosed result I cannot post my solution.But I think this is a very meaningful question still.So I post it again.
Question
How ...
5
votes
2answers
232 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:
...
5
votes
1answer
295 views
21
votes
2answers
652 views
How can I use Mathematica to sort the US Congressional Districts by Perimeter÷Area
The United States is divided into 435 congressional districts. Some of their shapes can be really strange due to gerrymandering. I think that I can find very gerrymandered congressional districts if ...
2
votes
0answers
105 views
Is there a Wikidata - based Entity system yet?
Wikidata.org seems to have a similar goal as the new Entity/EntityProperty Wolfram-knowledge base system.
The differences are that Wikidata is open, promising faster expansion and fixing, but of ...
6
votes
3answers
238 views
How to extract the displayed name of an entity
Entities are typically displayed in their elided form:
It's useful when exploring the output of EntityList to have access to the canonical name of the ...
3
votes
1answer
148 views
Working with StarData Versus AstronomicalData
Using AstronomicalData I could easily do something like:
...
