To Read Column Names and Metadata from Feather Files in R Arrow
To read column names and metadata from a feather file, one needs to install and load the arrow and feather packages, which can be done by following the steps mentioned below:
- Installing the required packages
install.packages("arrow")
install.packages("feather")
- Loading the packages in R
library(arrow) library(feather)
Hereās an example of how to read column names and metadata from a feather file in the R arrow:
R
# installing the requied packagesinstall.packages("arrow")install.packages("feather")# loading the requied packageslibrary(arrow)library(feather)# Write the mtcars dataset to a feather filewrite_feather(mtcars, "mtcars.feather")# Read the feather file and extract column names and metadatadf <- read_feather("mtcars.feather")colnames <- names(df)metadata <- feather_metadata("mtcars.feather")# Print column names and metadataprint(colnames)print(metadata) |
First, we will convert Rās built-in dataset āmtcarsā into a feather file āmtcars.featherā by using the write_feather() function of the arrow package. Then we read the feather file using the read_feather() function. The names() function in R is used to get the name of the columns. Then we used the feather packageās feather_metadata() function to read the metadata of the file.
Output:
Column names and Metadata of a Feather file
How to read column names and metadata from feather files in R arrow?
To access column names and metadata from feather files in R programming, we use the R Arrow package to load the feather file into a data frame. After loading the feather file, we can retrieve the column names and metadata attributes by using the Feather package.