Contents
- 1 How do I find the datasets in an R package?
- 2 What command would you use to import a built in dataset called rivers into R?
- 3 How do I see loaded data in R?
- 4 Which command in R lists the available datasets in R?
- 5 How do I read a DTA file in R?
- 6 How do I save a dataset in R?
- 7 How to get a list of datasets in R?
- 8 How to locate the data set and load it into R?
- 9 How to extract data from raster in R?
How do I find the datasets in an R package?
Command data() will list all the datasets in loaded packages. The command data(phones) will load the data set phones into memory.
What command would you use to import a built in dataset called rivers into R?
Start RStudio, and on the “Packages” tab, make sure “datasets” is checked. Enter data() to see the list of datasets available and data(rivers) to load a dataset of lengths of major American rivers. Enter rivers to see the list of lengths.
What package is view in R?
View function in RStudio RStudio includes a data viewer that allows you to look inside data frames and other rectangular data structures. You can invoke the viewer in a console by calling the View() function on the data frame you want to look at.
How do I see loaded data in R?
Reading R Data Files The command > ls() can be used to print out all of the objects currently loaded into R. The readRDS function will restore a single R object.
Which command in R lists the available datasets in R?
“The answer to your question is data(). This is the command used for listing all the datasets available in R.
How do I import mass packages in R?
Loading and/or Installing Packages Programmatically
- is_installed <- function(mypkg) is. element(mypkg, installed.
- library(MASS) library(MASS)
- library(“MASS”,character. only=TRUE)
- install. packages(“MASS”,repos=”http://lib.stat.cmu.edu/R/CRAN”)
- load_or_install(c(“foreach”,”MASS”,”doParallel”))
How do I read a DTA file in R?
To open a Stata file in R you can use the read_dta() function from the library called haven. For example, study_df <- read_dta(‘study_data. dta’) will open the Stata file called “study_data. dta” and create a data frame object.
How do I save a dataset in R?
To save data as an RData object, use the save function. To save data as a RDS object, use the saveRDS function. In each case, the first argument should be the name of the R object you wish to save. You should then include a file argument that has the file name or file path you want to save the data set to.
What does str in R mean?
str() function in R Language is used for compactly displaying the internal structure of a R object. It provides one liner output for the basic R objects letting the user know about the object and its constituents.
How to get a list of datasets in R?
3: Using data (package = “packagename”) will give you the datasets of that specific package, so data (package = “plyr”) will give the datasets in the plyr package If you want to know in which package a dataset is located (e.g. the acme dataset), you can do:
How to locate the data set and load it into R?
Here is how to locate the data set and load it into R. Command library loads the package MASS (for Modern Applied Statistics with S) into memory. Command data() will list all the datasets in loaded packages. The command data(phones) will load the data set phones into memory.
How to use spatial data in your as a GIS?
Spatial data in R: Using R as a GIS A tutorial to perform basic operations with spatial data in R, such as importing and exporting data (both vectorial and raster), plotting, analysing and making maps. Francisco Rodriguez-Sanchez v 2.1
How to extract data from raster in R?
Extract values from raster Rasterize vector data (points, lines or polygons) Changing raster resolution Spline interpolation Setting all rasters to the same extent, projection and resolution all in one Elevations, slope, aspect, etc Saving and exporting raster data