Solanaceous vegetables are popular dishes for residents, and they are also one type of the important cultivated vegetables in China. The price of solanaceous vegetables is non-steady with large fluctuations. Therefore, it is important to master the historical price trends and fluctuation laws, which can provide scientific guidance and support for ensuring the stability of vegetable supply prices and guiding the orderly operation of the market. Through data collection, stability test and HP filtering method decomposition, we formed a dataset of the HP filter model-based research on price volatility of solanaceous vegetables at Beijing Xinfadi Agricultural and Sideline Products Wholesale Market from 2012 to 2018. The varieties cover five kinds of solanaceous vegetables (eggplant, tomato, green pepper, bean and cucumber), including market, date, weekly/monthly average price, weekly/monthly average volatility, weekly/monthly maximum price, weekly/monthly minimum price, weekly/monthly average HP filter trend value, weekly/monthly average HP filter fluctuation value. The dataset can reflect the weekly and monthly changes of the trading prices of solanaceous vegetables in Beijing Xinfadi Market, and provide scientific data foundation for the research on as well as monitoring and early warning of the price fluctuation of solanaceous vegetables in Beijing.

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Scallion, ginger and garlic are important seasoning vegetables, which are indispensable in the daily diet of Chinese residents. Especially, ginger, garlic and their processed products play an important role in the international market. It is of great significance to grasp the historical price data to prop up the analysis of the fluctuation rules, the guidance of production and orderly operation of the market. In this paper, we collected and sorted out the transaction price data of 15 wholesale markets in Shandong Province, a major producing area of scallion, ginger and garlic in China from 2012 to 2020 to obtain this dataset of statistics on scallion, ginger and garlic transaction price. The dataset can reflect the weekly, monthly and quarterly changes of the transaction price of scallion, ginger and garlic wholesale markets in Shandong Province. It is expected to provide basic scientific data for studying the linkage change and stable price of scallion, ginger and garlic.