Change history

Release history of principle-viz, including its releases as principle-econ. Documentation-only changes are not listed; each entry is tagged where the feature it describes is documented, following l3doc convention, so the page number is the real page.

0.10.1

• CI tests Python 3.10--3.13 Introduction
• demand_aggregation_figure — The market curve names the demand that is active at a kink Market curves from individuals
• Label — Every built-in label can be renamed, hidden or moved: Label, labels=, configure_label() and label_ids Figures
• MarketFigure.configure_layer — Every layer can be hidden or shown: visibility=, configure_layer(), hide(), show() and layer_ids Figures

0.10.0

• Renamed from principle-econ to principle-viz, joining the EconViz family; the Python package is principle_viz Introduction
• Figures are built on mosaickit (mosaickit>=0.5.1,<0.6.0) Introduction
• Project tooling moved from Poetry to uv Introduction
• principle-viz — The only runtime dependency is mosaickit Installation
• add_comparative_statics — Redraws only the curve that moved; shifted curves are named \(D_1\) / \(S_1\) (demand_label / supply_label) Linear markets
• add_comparative_statics — Movement arrows are thin, black and dashed Linear markets
• MarketFigure.add_discrete_curves — Accepts a demand schedule, a supply schedule, or both Discrete markets
• MarketFigure.add_discrete_curves — Open endpoints are drawn with an opaque white face, joined to the next step by a thin dashed riser Discrete markets
• market_demand — Market demand and supply as the horizontal sum of individual linear curves, with PiecewiseLinear, solve_piecewise_equilibrium() and piecewise_surplus() Market curves from individuals
• DiscreteDemand.combine — combine() and quantity_at() for discrete schedules Market curves from individuals
• demand_aggregation_figure — Individual | individual | market figures for demand and supply, linear and discrete, returning an AggregationFigure Market curves from individuals
• demand_aggregation_figure — link_price=True runs the price line across every panel Market curves from individuals
• MarketFigure.add_welfare — Regions are named in words ("Consumer surplus", "CS", ...) inside, by short name or by callout; labels=False shades only Welfare
• MarketFigure.add_welfare — Consumer and producer surplus reuse the demand and supply hues; tax revenue is labelled rather than shaded Welfare
• MarketFigure.add_tax_transform — Taxed curves are named \(S + t\) / \(D - t\); the rotation label sits at the arrow's tail Taxes and subsidies
• MarketFigure.add_tax_comparison — Marks \(p_d\), \(p_0\) and \(p_s\) on the price axis with a "Tax" brace; brace_side and notes Taxes and subsidies
• MarketFigure.add_subsidy_comparison — Subsidy wedge with a "Subsidy" brace, and the subsidy's cost named Taxes and subsidies
• MarketFigure.add_price_control — Binding controls name the control line, mark \(p_c\), \(Q_d\) and \(Q_s\), and brace "Shortage" or "Surplus" on the control line; gap_brace="axis" braces it under the quantity axis Price controls
• MarketFigure.add_trade — Marks \(Q_s\) / \(Q_d\) and braces "Imports" / "Exports" under the quantity axis; the policy price is marked \(p_w + t\) or \(p_q\) International trade
• MarketFigure.add_externality — Social curves are named \(M S C\) / \(M S B\); \(Q_m\) and \(Q^*\) are marked on the quantity axis; corrective taxes and subsidies span the gap at \(Q^*\) Market failures
• MarketFigure.add_minimum_wage — Drawn like a price floor: the "Minimum wage" line, \(w_{\min}\), \(L_d\) / \(L_s\) and an "Unemployment" brace Labor and loanable funds
• MarketFigure — Figures are square (6 × 6 in at 150 dpi) on an opaque white background; straight curves stop at 92% of the price axis Figures
• MarketFigure — Curves are named beside their visible end instead of in a legend Figures
• MarketFigure — Axis titles default to \(p\) and \(Q\), set in italic math past the arrow tips; titles use normal weight Figures
• MarketFigure — Equilibrium and policy labels are placed by mosaickit beside their point; crowded quantities are marked on the quantity axis Figures
• MarketFigure.finalize — No legend by default; finalize(legend=True) adds one Figures
• ColorModel — The default palette takes its hues from mosaickit: demand blue, supply red, deadweight loss teal Figures
• PlotTheme — Supply and demand curves are 3.5 pt wide, axes 1.0 pt, equilibrium points 6.5 pt across Figures

0.1.0

• Initial release as principle-econ: linear markets, taxes, welfare, plotting and a command-line interface Introduction
• TaxScenario — Fixed, per-unit and ad valorem taxes, with legal incidence on buyers or sellers Taxes and subsidies
• ColorModel — default, colorblind, nord and monochrome colour models Figures
• principle-viz — Command-line interface with JSON output Command-line interface

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