To?insert?a?new?code?section?you?can?use?the - command.?Alternatively,?any?comment line?which?includes?at?least?four?trailing?dashes?(-),?equal?signs?(=),?or?pound?signs?(#)?automatically?creates a?code?section.?For?example,?all?of?the?following?lines?create?code?sections: 插入一个新...
控制台中的工作控制台中的工作 概述概述 The RStudio console includes a variety of features intended to make working with R more productive a,人人文库,
The basicconditional statementuses an if-else structure. This might be best explained by example. Suppose we want to enter a value,x, and have R reply with “small” ifx≤ 3 and with “big” ifx> 3. We can type if ( x <= 3 ) {# if x is less than or equal to 3 ...
To insert a new code section you can use the command Alternatively any comment line which includes at least four trailing dashes equal signs or pound signs automatically creates a code section For example all of the following lines create code sections 插入一个新的代码段你使用 命令 或者 任意...
## ## Hotelling's one sample T2-test ## ## data: DVdiff ## T.2 = 14.925, df1 = 2, df2 = 19, p-value = 0.000127 ## alternative hypothesis: true location is not equal to c(0,0) P值小于0.05,可以认为不同时间记录的VEGF差异显著。 car包Anova()函数进行多变量方差分析 多元方差分析...
In R, the expressions<=(less than or equal to),>=(greater than or equal to), and!=(not equal to) work similarly to<,>, and==. Create a variable namedvalue2that is equal tovalue1plus 10. Write three Boolean expressions that check ...
To insert a new code section you can use the - command. Alternatively, any comment line which includes at least four trailing dashes (-), equal signs (=), or pound signs (#) automatically creates a code section. For example, all of the following lines create code sections: 插入一个新...
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and is instead equal to the initial value. This makes sense since we can see the trend component maintains near constant slope over the time series. Thegamma = 0.95is very high, which indicates that the estimate of the seasonal component at the current time point is based on very recent ob...
# Defining the new projection you want to use:new_projection<-"+proj=laea +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 +a=6370997 +b=6370997 +units=m +no_defs"# This is the Lambert Azimuthal Equal Area projection-- a projection known for keeping the area of the geographic units true...