Questions tagged [entity]
Questions about Entity expressions and the use of standardized representations of specific real-world entities.
194
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Entity Creation
I had a city called "Lavaresque" which is not known by the interpreter. The following command Interpreted["City"]["Lavaresque"] failed ...
- 421
4
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0
answers
119
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TimeLine Plot of Every Historical Country/Empire - how to control y axis
I'm trying to see if Mathematica can make a similar timeline to this. Specifically, note that the y axis of the graphic is based on current countries. I'd like to make a Timelineplot where I can ...
- 4,558
5
votes
2
answers
196
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Using ReactionBalance on chemical entities with missing formula
I am currently working on a project (turns out: a bigger project, than originally thought...) with all hypothetically "thinkable" products for a reaction with two given educts. These educts ...
- 463
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0
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63
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Upper and lower case sensitivity when entering entities, but inconsistent
When you type Entity["Chemical", "Hydrogen"] or Entity["Chemical", "hydrogen"] it will ...
- 463
3
votes
1
answer
68
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CountryData syntax
Which of the following syntax variations are correct? For the incorrect? syntax, what does the obtained value represent? Statements 2/3 and 4/5 are identical; I was trying to see if it was a bug.
<...
- 56k
3
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1
answer
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A few national flags not converting properly to pdf
Why is the pdf output for the following flags not rendering properly? I am using v12.2.0 on Win7-x64.
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- 56k
0
votes
0
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37
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Create auto-completion for Wolfram Entity framework related functions when using with user-defined entity store
I am trying to create autocompletion for my custom entity store, for example in the document of EntityStore
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- 21
1
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2
answers
79
views
3
votes
1
answer
73
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Errors on entity CrystalSystem
Following the tutorial on Exploring Symmetries of Crystal Systems and using the code below:
...
- 2,151
4
votes
1
answer
58
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How do I use StarData with HR number as input?
In Mathematica 13.1, it is simple to look up star data using the star name as input, like this:
StarData["Capella","EffectiveTemperature"]
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- 43
3
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1
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156
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4
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3
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432
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Calculating upper culmination of the Moon
I’m completely confused by the new astronomical data system in Mathematica. For every day in some interval, I want to calculate
{azimuth, altitude} of the Moon in ...
- 1,849
3
votes
0
answers
64
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Entity Framework for Relational Databases is compiling `If` and `Which` statement incorrectly
Suppose I have an SQLite Database with a table name myTable. Then running the following query:
...
- 9,523
1
vote
1
answer
171
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How to prefetch all Entity types?
I would like to prefetch all entity types. How can I speed up computations by prefetching all entity types?
This question is unique from other questions because I am interested in the exact mechanisms ...
- 1,725
3
votes
1
answer
102
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How to style a graph of isotope decay data automatically so that vertices and edges correspond to half-lives and decay probabilities?
For teaching purposes I am trying to create some plots of radioactive decay chains, whereby each node on the graph represents the isotope with a color corresponding to the isotopes stability and with ...
- 4,083