# Abacus

**URL:** https://forum.ipums.org/c/abacus/17.md

[Latest](https://forum.ipums.org/latest.md) · [Categories](https://forum.ipums.org/categories.md)

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## [About the Abacus category](https://forum.ipums.org/t/about-the-abacus-category/62)

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**Author:** [@grover](https://forum.ipums.org/u/grover)\
**Replies:** 0

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IPUMS Abacus provides a mobile-friendly interface for quickly generating cross tabulations of IPUMS USA data.

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## [Sign up to become a Beta Tester!](https://forum.ipums.org/t/sign-up-to-become-a-beta-tester/2945)

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**Author:** [@grover](https://forum.ipums.org/u/grover)\
**Replies:** 6\
**Last updated:** [August 10, 2020, 7:25pm UTC](https://forum.ipums.org/t/sign-up-to-become-a-beta-tester/2945 "2020-08-10T19:25:17Z")

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IPUMS Abacus Beta Testers will be an important part of the IPUMS Abacus development process. Beta Testers will get first access to new features and data and will provide important feedback, helping to determine the direc…

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## [2018 ACS in Abacus](https://forum.ipums.org/t/2018-acs-in-abacus/3326)

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**Author:** [@Christa\_Murillo](https://forum.ipums.org/u/Christa_Murillo)\
**Replies:** 1\
**Last updated:** [January 14, 2020, 3:22pm UTC](https://forum.ipums.org/t/2018-acs-in-abacus/3326 "2020-01-14T15:22:37Z")

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When will the 2018 ACS data be available to use in Abacus?

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## [Why are percentages different than I'm calculating w/ raw numbers?](https://forum.ipums.org/t/why-are-percentages-different-than-im-calculating-w-raw-numbers/3199)

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**Author:** [@Diana\_Jensen](https://forum.ipums.org/u/Diana_Jensen)\
**Replies:** 2\
**Last updated:** [October 9, 2019, 11:49pm UTC](https://forum.ipums.org/t/why-are-percentages-different-than-im-calculating-w-raw-numbers/3199 "2019-10-09T23:49:14Z")

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When I run IPUMS Abacus to show the number and percentage of Californians at different levels of poverty for ACS 2017, I don’t understand the percentages it reports out. For example, the weighted count for people with in…

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## [2017 Median Renter Income on IPUMS abacus](https://forum.ipums.org/t/2017-median-renter-income-on-ipums-abacus/2944)

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**Author:** [@hunter\_king](https://forum.ipums.org/u/hunter_king)\
**Replies:** 1\
**Last updated:** [May 1, 2019, 5:41pm UTC](https://forum.ipums.org/t/2017-median-renter-income-on-ipums-abacus/2944 "2019-05-01T17:41:32Z")

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Is there a way to find the median income or rent for a population group using the IPUMS abacus tool? I’m new to using this site and don’t have stats software, but it feels like this should be possible? Right now I’m just…

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## [IPUMS Abacus beta:  Is it possible to recode age to custom groups?  such as 15 year intervals instead of 5?](https://forum.ipums.org/t/ipums-abacus-beta-is-it-possible-to-recode-age-to-custom-groups-such-as-15-year-intervals-instead-of-5/2742)

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**Author:** [@ambassador\_bob](https://forum.ipums.org/u/ambassador_bob)\
**Replies:** 2\
**Last updated:** [March 1, 2019, 3:48pm UTC](https://forum.ipums.org/t/ipums-abacus-beta-is-it-possible-to-recode-age-to-custom-groups-such-as-15-year-intervals-instead-of-5/2742 "2019-03-01T15:48:39Z")

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Abacus is cool–ability to compare at 2 points in time is great. Unfortunately age categories need more options. I prefer 15 year groups instead of ~5. It would be good to save the options on my phone so that they load au…