Questions about Dataverse categories/Metrics API - bySubject

[Yan Na Cheng]

Hi All, I am new and dummy user of dataverse. Hope any experts could answers my questions.

1. Display Dataverse categories in navigation bar

Currently, only 5 Dataverse Categories(Research Project, Department, Journal, Researcher, Research Group) could be displayed on root page. Actually, There are 6 Categories containing dataverses in our site. How to add "Show more" to make all dataverses findable?

2. Metrics API - by Subject

When I try to    curl http://localhost:8080/api/info/metrics/dataverses/bySubject
The subject and count returned null liked this  : subject,count 

May I know the potential reasons and solutions?

Joanna Cheng

EOII, Research Data Management Team

Research Support and Scholarly Communication 

Run Run Shaw Library

City University of Hong Kong

[Alfredo Cosco]

Hello,

Il giorno giovedì 22 maggio 2025 alle 05:10:58 UTC+2 Yan Na Cheng ha scritto:

Hi All, I am new and dummy user of dataverse. Hope any experts could answers my questions.

1. Display Dataverse categories in navigation bar

Currently, only 5 Dataverse Categories(Research Project, Department, Journal, Researcher, Research Group) could be displayed on root page. Actually, There are 6 Categories containing dataverses in our site. How to add "Show more" to make all dataverses findable?

I'm not pretty sure but I suppose you refer to the facettes on the left column of the page, the "Show more" link should appear automatically if the sixth category is valued, if there is no associated content it is not taken into consideration.

[Philip Durbin]

Hi Joanna,

Right, only the first five facets are shown but there should be a "More" button to see the rest. Please see https://demo.dataverse.org for example.

For bySubject, here's how it looks on demo:

curl https://demo.dataverse.org/api/info/metrics/dataverses/bySubject
subject,count
"Social Sciences",274
"Agricultural Sciences",242
"Arts and Humanities",208
"Computer and Information Science",182
"Other",168
"Medicine, Health and Life Sciences",161
"Engineering",125
"Earth and Environmental Sciences",108
"Business and Management",88
"Chemistry",80
"Astronomy and Astrophysics",59
"Physics",45
"Mathematical Sciences",29
"Demo Only",27
"Law",24
"N/A",12

I hope this helps!

Phil

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Philip Durbin
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http://www.iq.harvard.edu/people/philip-durbin

[Yan Na Cheng]

HI Alfred & Phil,

Thank you so much for the prompt help! Yes, I am referring to the facet in the left column of the page. I noticed that the host (root) Dataverse was counted as one of the Dataverses. Since the root Dataverse is categorized in a group that only contains itself, it cannot be displayed in the left column. It's okay now. Thank you!

For the Subject metrics, I can successfully grab data from demo , and return below response

curl https://demo.dataverse.org/api/info/metrics/dataverses/bySubject
subject,count
"Social Sciences",274
"Agricultural Sciences",242
"Arts and Humanities",208
"Computer and Information Science",182
"Other",168
"Medicine, Health and Life Sciences",161
"Engineering",125
"Earth and Environmental Sciences",108
"Business and Management",88
"Chemistry",80
"Astronomy and Astrophysics",59
"Physics",45
"Mathematical Sciences",29
"Demo Only",27
"Law",24
"N/A",12

but for our own dataverse site, since it is not yet published, I try to curl by local server. The status is ok. but the data is null. I believe that there is no "Subject" field for a Dataverse collection. So, I want to know whether only datasets (with subjects assigned) are published in the Dataverse, the Subject count of the Dataverse return data? (in my site, there is no dataset was published)

curl -H "Accept: application/json" http://localhost:8080/api/info/metrics/dataverses/bySubject
{"status":"OK","data":[]}