LIMDEP 是對線性和非線性模型、橫截面、時間序列和panel data的評價和分析的一套整合性軟體,其主要特點是此套軟體內置超過一百種所有估計形式的線性迴歸模型、stochastic frontier、離散選擇和有限因變量模型,包含的模型有binary、censored、truncated、survival、count、disc rete和連續變量和各種的樣本選擇模型。
LIMDEP一直是計量分析領域的領先者,沒有其他軟體可提供如此廣泛的單一、多重線性和非線性方程模式,多年來公認是離散和有限因變量模型的標準計算軟體,表現在廣泛和多種類的估算工具。
LIMDEP是使用在教學和研究的先端程式,包含全世界數千所大學、政府和私人研究機構,為數眾多的創新都源自LIMDEP。舉三個例子: 1.我們把樣本選擇模式定成標準。2.截至目前,沒有任何其他軟體可以結合the true fixed effects、隨機參數、階層模型和 finite mixture models 等廣泛多種的模型架構。3.大約有20多種計算數據模式,只有LIMDEP軟體支援。
Complete Statistics and Econometrics Package
LIMDEP is a complete econometrics and statistics software package. You don’t need add-ons or modules for your statistical analysis. Features include:
- Easy-to-use interface with comprehensive and intuitive desktop menus and a self-documenting command language
- Get started quickly with our specialized menu-driven command builders that allow you to build your models from menus and dialogs while you learn the command language
- Use LIMDEP’s powerful command language to customize your analysis and maximize flexibility
- Enhanced post-estimation tools allow you to manipulate your estimation results
Hundreds of Built-In Statistical Programs
With over 200 built-in estimators, you can analyze:
- Linear regression
- Nonlinear regression
- Logit and probit
- Loglinear models
- Panel data
- Ordered choice
- Stochastic frontier and DEA
- Discrete choice and multinomial logit
- Sample selection
- Treatment effects
- Count data including Poisson and negative binomial and much more
NLOGIT 是LIMDEP的延伸功能版,除了所有的LIMDEP功能外,還提供估算、模擬模型和多種選擇資料分析的程式,像是品牌選擇、運輸方式、所有形式的調查和市場數據,讓使用者可選擇需要的兩個軟體。NLOGIT已成為估計和模擬多項式離散選擇模型首選方案。
NLOGIT 有完整資訊在最大概似估計,除其他模型,多達四個層次巢狀logit模型。許多其他公式列入NLOGIT軟體,包括隨機參數(混合logit)、潛類、 multinomial probit、多種形式的巢狀logit模型還有一些新的panel data公式。NLOGIT包含LIMDEP所有特色和功能,加上NLOGIT的FIML估計程式。
NLOGIT是包含完整特點的綜合離散選擇分析經濟計量程式。
The Power of NLOGIT
NLOGIT 6 provides programs for estimation, simulation and analysis of multinomial choice data, such as brand choice, transportation mode, and all manner of survey and market data in which consumers choose among a set of competing alternatives. Since its introduction nearly 20 years ago, NLOGIT has become the premier statistical package for estimation and simulation of multinomial logit models including willingness to pay and best/worst modeling. NLOGIT is the only program available that supports mixing stated and revealed choice data sets.
Superior Analysis Tools for Multinomial Choice Modeling
Our NLOGIT statistical software provides the widest and deepest array of tools available anywhere for analysis of multinomial logit models, including nested logit, generalized mixed multinomial logit, heteroscedastic extreme value, multinomial probit, mixed logit and more. A unique simulation package that allows you to analyze alternative scenarios in the context of any estimated discrete choice model with any data set, whether used in estimation or as hold out data for examining model cross validity.
Features of NLOGIT 6 include:
With over 200 built-in estimators, you can analyze:
- Four level nested logit models
- Random parameters mixed logit
- Latent class
- Multinomial probit
- Panel data - fixed effects MNL
- Stated choice experiments
- Willingness to pay
- Heteroscedastic extreme value
- Best/worst modeling
- Random regret
- Attribute nonattendance
- Estimation and simulation
- and much more