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In this video we illustrate how to add text (including mathematical symbols), lines, curves, and other features to a scatter or series plot. Applications include adding a nonparametric lowess fit to…
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In this video we illustrate how to construct a series plot with two series overlayed, even if the scales for the two series are vastly different. The example used here is the same as one we…
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A grouped expression is a collection of R commands or expressions enclosed in curly brackets {}. R regards a grouped expression as a single expression with a single value, although when such an…
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In this video we continue to discuss subscripts, this time concentrating on matrices and arrays. Each dimension of these structures may be subscripted to return a sub-matrix or sub-array of the…
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In this video we illustrate how to read data from an Excel format into R with read_excel() from the readxl package. We also illustrate the within() function, which is a convenient tool for modifying…
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In this video we discuss the "Date" class in R, how dates are stored, and how to create objects of class "Date" with the as.Date() function. We also discuss how to read date data…
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In this video we show how to produce series plots with PROC SGPLOT. A series plot displays the values of a variable Y versus time or some other variable X, with consecutive points connected with line…
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This video introduces formatted input. Follow along with Example #4 in InputExamps.sas.
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