Get Basic Info about your DataFrame in SparkR

[suxinji]

Overview 

You can enter a DataFrame name, such as df, to get basic information about the Spark DataFrame. 

• Use str() to show the Spark DataFrame structure
• Use display() Incorta Notebook extension to display data. 
• Use display(summary()) to print a summary table
• Use colnames() or names() to show all columns from a DataFrame

Solution

# get basic information about the SparkDataFrame.
df
# show the Spark data frame structure
str(df)
# use display() - Incorta Notebook extension to display data 
display(df)
# use display(summary(df)) to print summary table
display(summary(df))
# show all columns from data frame 
colnames(df)
# show all columns from data frame method 2
names(df)