updates

metis Updates

The development update history has been consolidated into one public release milestone. This page reflects the current metis desktop app experience.

v0.0.1

v0.0.1 new May 2026

metis 0.0.1 brings the full PLS-SEM workflow into one desktop app: setup, workspaces, dataset handling, visual model building, PLS-SEM, Bootstrap, PLSpredict, Advanced analysis, results review, exports, and TARK reporting.

Workspaces & Data

  • Workspace Home now manages workspaces, models, datasets, and saved results from one project browser.
  • Single-file .ada workspaces embed datasets, support bundled samples, and open directly from File Explorer through the metis file association.
  • Dataset import supports spreadsheet and text data, then opens into DataView for preview, editing, replace, or save-as-new workflows.
  • Descriptive statistics and dataset persistence keep imported data available across model, results, and reporting screens.

Model Canvas

  • Build reflective and formative measurement models with draggable constructs, indicators, measurement paths, and structural paths.
  • Create moderation relationships by connecting a construct to an existing path, with dotted moderation links anchored to the target relationship.
  • Work across multi-model tabs with open, close, reorder, same-session switching, per-model dirty state, and active dataset syncing.
  • Use multi-select drag, shared resize handles, alignment guides, snap controls, copy, cut, paste, select all, Save As, Fit to Screen, and PNG export.
  • Autosave and Run on Draw reduce lost work and make quick model checks available while the canvas is being built.

Analysis Engine

  • Run PLS-SEM through the R backend with seminr, including Standard PLS, Consistent PLS, reflective constructs, and formative constructs.
  • Run Bootstrap analyses with path, indirect, total effect, loading, weight, confidence interval, and significance outputs.
  • Run PLSpredict with configurable folds, repetitions, optional CVPAT, Q²predict, PLS-SEM RMSE/MAE, and linear-model comparison metrics.
  • Run Advanced analysis after a valid PLS-SEM result, including IPMA, NCA, and cIPMA target-construct diagnostics powered by seminrExtras.

Results & Diagnostics

  • Results View has mode-specific sidebars for PLS-SEM, Bootstrap, PLSpredict, and Advanced analysis.
  • Core panels cover path coefficients, total effects, specific indirect effects, outer loadings, outer weights, reliability, discriminant validity, cross-loadings, R², f², VIF, model fit, and execution logs.
  • Bootstrap panels separate resampled structural and measurement effects from base-model reference panels, including visible reference-state labels.
  • PLSpredict panels include MV/LV summaries, prediction errors, PLS vs LM comparison, Q²predict, error histograms, and CVPAT states.
  • Advanced analysis panels include priority maps, construct tables, necessity checks, ceiling lines, bottleneck tables, and cIPMA priorities.
  • The results diagram supports metric overlays, hoverable construct diagnostics, result-side movement, and cleaner export behavior.

Reporting & Exports

  • Saved result artifacts reopen PLS-SEM, Bootstrap, PLSpredict, and Advanced analysis outputs from the workspace.
  • Result tables can be copied as rich text, exported to Excel, or included in a clean HTML report with copy-table controls.
  • R scripts can be copied or exported so the analysis can be inspected and reproduced outside the desktop app.
  • TARK turns saved PLS-SEM, Bootstrap, and PLSpredict results into journal-ready report tables, with optional Advanced analysis families.
  • TARK report families cover measurement model assessment, discriminant validity, structural model assessment, explanatory and predictive power, model fit, PLSpredict, IPMA, NCA, and additional effects.

Setup, Packaging & Security

  • Lite and Bundle installers are supported: Lite connects to an existing R installation, while Bundle ships the portable R runtime.
  • The setup wizard validates R, installs required packages, and checks seminr, seminrExtras, semPower, and supporting runtime packages.
  • Installer and setup windows now use stable packaged renderer loading, opaque shell styling, and corrected file-protocol privileges.
  • Security hardening restricts Electron IPC, approved file paths, export opening, local Plumber access, dataset roots, and R executable selection.
  • Production builds remove generated debug files and avoid leaking local development paths into shipped artifacts.
  • Light/dark themes, preferences, title-bar actions, onboarding tour, diagnostics, and clearer error messaging round out the release experience.

Release Notes

  • Known limitations remain documented in support pages, and future public updates will build from this release baseline.