Draft #1 JMM 622 SHIQI WANG Natural disasters dominate the news (These include droughts, floods, biological epidemics, extreme weather, extreme temperatures, landslides, dry mass movements, impacts from exoplanets, wildfires, volcanic activity, and natural disasters caused by earthquakes. ） The number of publicly reported natural disasters worldwide is in annual totals （ From 1900 to 2000, it was a trend of growth, From 2000 to 2010, the trend was generally downward ） Decreasing tendency ---Reason? ---Elements? （ What factors affect it? The economy? The environment? Science and technology? Education? Religion? ） --- What are the main three factors? The economy? The environment? Science and technology? Education? Religion? The impact of disasters on different populations is different -- the economic losses suffered by poor people from disasters only account for a small part of the total economic losses caused by disasters, but they bear the brunt of the c...
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R is highly interactive. Except that the graph output is in another window, its input and output Windows are all carried out in the same window. If errors occur in the input grammar, they will be immediately prompted in the window, which has a memory function for the previous input commands and can be reproduced and edited at any time to meet the needs of the user. The output graph can be saved as JPG, BMP, PNG, etc. In addition, there are good interfaces to other programming languages and databases. R is well suited for interactive data analysis by new methods in development. Since R is a dynamic environment, new releases are not always fully compatible with previous releases. Some users welcome these changes because of the benefits of new technologies and methods; Some worry that old code is no longer available. THE FUNCTIONAL ART CHA 8 CREATING INFORMATION GRAPHICS 1. Define the graphics, decide what stories you want to pass on to the reader, and what is the point. 2. There...
—Excel Clean and delete in excel, I want to discuss the differences between the two, which makes me curious in my study. First of all, clean, which works with the contents of a cell, based on data, including the formatting of the cell. The delete key on the keyboard is the shortcut key for its function, corresponding to the erase content function. There is also a shortcut key backspace delete key. Unlike delete, using the backspace key to clear will go into edit mode, and delete will not. The delete function is the action and cell, and the smallest scope is the cell. Cell areas can be selected on their own, or you can use the default rows or columns. Even the removal of the entire worksheet. What I want to focus on here is that to initialize the content of a completed table, deleting cells is not a good choice to clear the content, and we should use all clear to complete the reservation of table Settings. In addition, all cleared content on the cell comment or b...