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Aimed at econometricians who have completed at least one course in time series modeling, Multiple Time Series Modeling Using the SAS VARMAX Procedure will teach you the time series analytical possibilities that SAS offers today. Estimations of model parameters are now performed in a split second. For this reason, working through the identifications phase to find the correct model is unnecessary. Instead, several competing models can be estimated, and their fit can be compared instantaneously. Consequently, for time series analysis, most of the Box and Jenkins analysis process for univariate series is now obsolete. The former days of looking at cross-correlations and pre-whitening are over, because distributed lag models are easily fitted by an automatic lag identification method. The same goes for bivariate and even multivariate models, for which PROC VARMAX models are automatically fitted. For these models, other interesting variations arise: Subjects like Granger causality testing, feedback, equilibrium, cointegration, and error correction are easily addressed by PROC VARMAX. One problem with multivariate modeling is that it includes many parameters, making parameterizations unstable. This instability can be compensated for by application of Bayesian methods, which are also incorporated in PROC VARMAX. Volatility modeling has now become a standard part of time series modeling, because of the popularity of GARCH models. Both univariate and multivariate GARCH models are supported by PROC VARMAX. This feature is especially interesting for financial analytics in which risk is a focus. This book teaches with examples. Readers who are analyzing a time series for the first time will find PROC VARMAX easy to use; readers who know more advanced theoretical time series models will discover that PROC VARMAX is a useful tool for advanced model building. Получить ссылку |
Celtic Charted Designs (Dover Needlework Series)
Автор: Co Spinhoven
Год издания:
Более 350 кельтских орнаментов в виде схем для вышивки крестом (и других счетных техник рукоделия). Книга просто уникальная для всех любителей кельтского орнамента и любителей рукоделия. Уровень предложенных орнаментов - от простейших "косичек" до сложных "ковровых" рисунков. Короткий пояснительный текст на английском относится, главным образом, к технике вышивки. Все схемы даны в ч/б варианте, клетка очень мелкая но хорошо различимая.
Photoshop CS2 Raw: Using Adobe Camera Raw, Bridge, and Photoshop to Get the Most Out of Your Digital Camera
Автор: Aaland Mikkel
Год издания:
The RAW file format is the uncompressed data file captured by a digital camera's electronic sensor. When your camera saves an image in RAW format, settings like white balance, sharpening, contrast and saturation are not applied to the image but are saved instead in a separate header. Because RAW files remain virtually untouched by in-camera processing, they are essentially the digital equivalent to exposed but undeveloped film.
This makes RAW an increasingly popular format with amateur and professional digital photographers, because it affords greater flexibility and control during the editing process-if you know how to work with RAW files.
Most digital camera manufacturers supply their own software for converting RAW data, as do some third party vendors. Increasingly, however, the RAW converter of choice is a plug-in included in the latest version of Adobe Photoshop, the most popular and widely-used digital image editing tool in the world. Adobe Photoshop CS2 is emerging as the best place to edit RAW images, and the best way to master this new format is with Photoshop CS2 RAW.
An important book dedicated to working with RAW in Photoshop, this comprehensive guide features a unique design that helps readers grasp the subject through visual instruction and prompts. The entire RAW process is explored, from shooting to using the Adobe plug-in converter and new Bridge navigation software. The primary focus of Photoshop RAW is, as the title suggests, Photoshop editing technique: automating RAW workflow, correcting exposures, extending exposure range, manipulating grayscale and working with the new DNG (Digital Negative) open standard that Adobe supports.
Presented by photographer Mikkel Aaland, a pioneer of digital photography and author of eight books, including O"Reilly"s Photoshop for the Web and the award-winning Shooting Digital, Photoshop CS2 RAW investigates and instructs in an accessible visual style. Required reading for professionals and dedicated photo hobbyists alike.
Causeries. Правда об острове Тристан-да-Рунья
Автор: Владимир Евгеньевич Жаботинский
Год издания:
«Прежде, когда еще не было в России дешевых желтеньких книжек „Универсальной библиотеки“, я старался при всех скитаниях пользоваться по возможности магистралью Одесса – Петербург. Иногда это было невозможно, а я все-таки пытался. Надо ехать из Варшавы в Ростов-на-Дону, а я сижу над путеводителем и вычисляю, нельзя ли хоть часа на два попасть на нашу магистраль. Почему такая привязанность? От любви к просвещению. В курьерском поезд Одесса – Петербург есть вагон ресторан и в нем библиотечный шкаф, и в этом шкафу все такие книги, каких мы, люди занятые, в обычное время не читаем. Толстого взрослые не читают, а он там есть. Чехов тоже есть. Александр Дюма-пер тоже, Эжен Сю тоже; кроме того Немирович-Данченко, Скальковский и г-жа Марлит. Очаровательное разнообразие содержания, уровня, стиля. Этот библиотечный шкаф дает тебе возможность регулировать твою духовную пищу так, чтобы, с одной стороны – не соскучиться, а с другой – не утомиться. Утром, пока еще голова свежа, можно взять Толстого или Чехова. После обеда немного тяжелеешь, клонит вздремнуть, а дремать не следует – рискуешь перебить ночной сон, – вот ты берешь Дюма пера; он очень мил; он врет, как по писаному, и твой сон проходит…»
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