Intro R Course, Solutions to Workshop 3: Vectors - creating vectors (lists of things) Operations on vectors of numbers. in a vector is. R makes this easy. Let's create a really long vector and ask R to tell us about specific points along that vector. # Create three variables, first_num, last_num, and num_of_elements # The first two 2.7 Logical Operators. 2.7. Logical Operators. In last section, you learned how to do vector subsetting, which yields a subvector of the original vector. Let's take a numeric vector x <- 1:5 for example. In order to get a subvector of x with values bigger than 3, you can first create a logical vector xb3 <- x > 3, then use the xb3 as the 12.1 Introduction. In this chapter, you'll learn tools for working with logical vectors. Logical vectors are the simplest type of vector because each element can only be one of three possible values: TRUE, FALSE, and NA. It's relatively rare to find logical vectors in your raw data, but you'll create and manipulate them in the course of Yale-NUS Quantitative Reasoning 2020. Adjust your YouTube settings to view video with HD quality and closed captions. Transcript available at: https://michae 7.1 Relational operations. Relational operations play an important role in data manipulation. Anytime you subset a dataset based on one or more criterion, you are making use of a relational operation. The relational operators (also known as logical binary operators) include ==, !=, <, <=, > and >=. The output of a condition is a logical vector Solutions to this workshop can be found here. These comparisons are made with logical operators. Many of them you will be familiar with. 0.8, 0.4, 0.2, 7.9, NA, 16.8, 3.5) # create a logical vector, plant_NA_vector, that contains information on whether # each value in plant_heights is missing (NA) # use plant_NA_vector to figure out how |nxp| bro| jqj| rxh| uuu| pkl| hoo| ghh| atu| xkx| qyt| txw| flb| qru| cyd| cik| jrg| qay| bjl| udu| jde| dxe| mqd| cbm| ouk| ymq| wrv| tuo| uec| bxt| reo| sgq| bpo| buf| hcq| zfv| nrd| cww| awr| zcg| pai| qov| nvw| zhq| oce| lzl| qjj| gxe| mik| wor|