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Comparison · Infra & APIs
exametrika vs standardlastprofile
A side-by-side editorial comparison of exametrika and standardlastprofile — release velocity, themes, recent moves, and the top alternatives to consider.
exametrika vs standardlastprofile: at a glance
What is exametrika?
exametrika breaks its own numbers to fix them, and ships the fit statistic nominal data lacked.
exametrika is an R psychometrics package covering IRT, latent class and rank analysis, and biclustering. Version 2.0.0 is a deliberate break: an EM convergence defect inherited from the reference implementation stopped estimation after as little as one cycle while reporting convergence, so every EM-based model in the package now returns different estimates than it did before. The package no longer reproduces the numbers printed in Shojima (2022), and the maintainer says so directly rather than burying it. The deprecation removals promised since 1.15.0 ride along in the same release, and the package title changed to Test Data Engineering.
What is standardlastprofile?
A German electricity load-profile package added gas and doubled the market it serves.
standardlastprofile implements the BDEW standard load profiles that German utilities use to assign consumption to customers without interval metering. Until June it did electricity only. Version 2.0.0 added the gas side — the SigLinDe synthetic procedure across all 15 BDEW gas profile IDs — and gave electricity a new primary interface, slp_electricity(), with slp_generate() superseded but retained.
exametrika vs standardlastprofile: editorial side-by-side
exametrika
3.8INFRA · APIS
exametrika breaks its own numbers to fix them, and ships the fit statistic nominal data lacked.
◆ Current state
exametrika is an R psychometrics package covering IRT, latent class and rank analysis, and biclustering. Version 2.0.0 is a deliberate break: an EM convergence defect inherited from the reference implementation stopped estimation after as little as one cycle while reporting convergence, so every EM-based model in the package now returns different estimates than it did before. The package no longer reproduces the numbers printed in Shojima (2022), and the maintainer says so directly rather than burying it. The deprecation removals promised since 1.15.0 ride along in the same release, and the package title changed to Test Data Engineering.
◆ Where it's heading
The consolidation arc that ran through 1.14.0 and 1.15.0 has closed, but not the way the audit trail suggested it would. Rather than pausing new modelling work through the cleanup, 2.0.0 pairs the breaking removals with real capability: M2() and add_M2() bring a limited-information fit statistic with a full margin-based index set, order-restricted estimation becomes the default for Ranklustering on the strength of a higher likelihood, and LCA() picks up nominal and rated data. The correctness fixes share one shape - defects that got worse as data got larger, where a 700-respondent dataset silently merged fields and a 40-item test returned no assignments at all. A two-tier test suite now keeps 3,507 tests in CI while CRAN sees a 17-second subset.
◆ Prediction
With the deprecation backlog cleared and the EM core rewritten, the next releases have room to build on M2() - most plausibly extending the margin-based indices to the models that do not yet report them. Whether the R Journal submission that shaped 1.13.1 and 1.14.0 has landed is not visible in these entries.
standardlastprofile
0.0INFRA · APIS
A German electricity load-profile package added gas and doubled the market it serves.
◆ Current state
standardlastprofile implements the BDEW standard load profiles that German utilities use to assign consumption to customers without interval metering. Until June it did electricity only. Version 2.0.0 added the gas side — the SigLinDe synthetic procedure across all 15 BDEW gas profile IDs — and gave electricity a new primary interface, slp_electricity(), with slp_generate() superseded but retained.
◆ Where it's heading
The package is converting from a dataset wrapper into a calculation library. Electricity profiles are tabulated values the package ships; gas profiles are computed from daily temperatures and a customer value through a coefficient-driven function, and the maintainer exposed the whole ladder — slp_gas() for the profile, slp_gas_kundenwert() to derive the customer value from a reference year, slp_gas_siglinde() for the raw h(theta) demand function so users can supply state-level coefficients, and coefficient and weekday-factor accessors underneath. The same instinct removed the built-in holiday table in favour of computing Easter directly, which lifted the date range cap from 2073 to open-ended. Deprecations are handled carefully throughout: renames keep working with lifecycle warnings, and the one hard break was already a warning since 1.1.0.
◆ Prediction
slp_gas_siglinde() was exported specifically so users could plug in region-specific coefficients such as Baden-Wurttemberg's, which points at state-level coefficient sets as the next thing to ship rather than leave to callers. The BDEW reference edition is now pinned to an Internet Archive permalink after the last one 404'd, so tracking edition changes is an ongoing maintenance cost.
Alternatives to exametrika and standardlastprofile
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either exametrika or standardlastprofile.
Retool
Retool now debugs the apps its agent builds, and versions them across instances.
nuggets
A pattern-mining package that keeps making its own search cheaper rather than wider.
Traefik
Traefik's 2.11 line spends August fixing the names it generates for Kubernetes resources.
NGINX
nginx returns to feature work with PROXY v2 upstream writes, and quietly adds JSON to core.
ESPHome
ESPHome closes the 2026.8 cycle, but the release body is a bare link to the real notes.
See all exametrika alternatives → · See all standardlastprofile alternatives →
Recent activity from exametrika and standardlastprofile
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoexametrikaEM convergence fix changes every estimate; deprecated names removed ⚡
- 1mo agoexametrikaFull-codebase audit fixes silent result corruption, unifies arguments
- 1mo agostandardlastprofileValidation against the SigLinDe pole; numeric variant accepted
- 2mo agoexametrikaPlot methods finally forward the graphical parameters they documented
- 2mo agostandardlastprofileGas standard load profiles arrive alongside electricity ⚡
- 3mo agoexametrikaCRAN resubmission: slow tests skipped to fit the check budget
- 3mo agoexametrikaGraphical Lasso and Chatterjee's xi extend the package into network estimation ⚡
- 3mo agoexametrikaFrozen research baseline, never released to CRAN
- 5mo agostandardlastprofileFive 2025 BDEW profiles added, including PV and storage variants
Frequently asked questions
What is the difference between exametrika and standardlastprofile?
They serve adjacent needs but don't currently overlap on shipped themes. exametrika is currently shipping more aggressively (velocity 3.8 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is exametrika better than standardlastprofile?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. exametrika is currently shipping more aggressively (velocity 3.8 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to exametrika?
Top exametrika alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "exametrika alternatives" section above for the current picks, or visit /alternatives/exametrika for the full list with editorial commentary on each.
What are the best alternatives to standardlastprofile?
Top standardlastprofile alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "standardlastprofile alternatives" section above for the current picks, or visit /alternatives/standardlastprofile for the full list with editorial commentary on each.