# How to Print Tables in R (3 Examples)

Often you may want to print a table to the console in R to summarize the values in some dataset.

The following examples show how to print tables in R by using the table() and as.table() functions.

## Example 1: Print One-Way Table from Data

Suppose we have the following data frame in R:

```#create data frame
df <- data.frame(team=c('A', 'A', 'A', 'B', 'B', 'B', 'C', 'C', 'C'),
position=c('Guard', 'Guard', 'Forward', 'Guard', 'Forward',
'Forward', 'Guard', 'Guard', 'Forward'),
points=c(14, 12, 15, 20, 22, 36, 10, 16, 19))

#view data frame
df

team position points
1    A    Guard     14
2    A    Guard     12
3    A  Forward     15
4    B    Guard     20
5    B  Forward     22
6    B  Forward     36
7    C    Guard     10
8    C    Guard     16
9    C  Forward     19```

We can use the table() function to summarize the count of each unique value in the position column:

```#create table for 'position' variable
table1 <- table(df\$position)

#view table
table1

Forward   Guard
4       5
```

From the table we can see that ‘Forward’ appears 4 times in the position column and ‘Guard’ appears 5 times.

This is referred to as a one-way table because it summarizes one variable.

## Example 2: Print Two-Way Table from Data

Once again suppose we have the following data frame in R:

```#create data frame
df <- data.frame(team=c('A', 'A', 'A', 'B', 'B', 'B', 'C', 'C', 'C'),
position=c('Guard', 'Guard', 'Forward', 'Guard', 'Forward',
'Forward', 'Guard', 'Guard', 'Forward'),
points=c(14, 12, 15, 20, 22, 36, 10, 16, 19))

#view data frame
df

team position points
1    A    Guard     14
2    A    Guard     12
3    A  Forward     15
4    B    Guard     20
5    B  Forward     22
6    B  Forward     36
7    C    Guard     10
8    C    Guard     16
9    C  Forward     19```

We can use the table() function to summarize the count of each unique value in the team and position columns:

```#create two-way table for 'team' and 'position' variables
table2 <- table(df\$team, df\$position)

#view table
table2

Forward Guard
A       1     2
B       2     1
C       1     2
```

From the table we can see:

• There is 1 Forward on team A.
• There are 2 Guards on team A.
• There are 2 Forwards on team B.

And so on.

This is referred to as a two-way table because it summarizes the count of two variables.

## Example 3: Print Table From Scratch

Suppose we already know the values that we’d like to fill in a table.

For example, suppose we want to create the following table in R that shows the results of a survey that asked 100 people which sport they liked best: We can use the as.table() function in R to quickly create this table:

```#create matrix
data <- matrix(c(13, 23, 15, 16, 20, 13), ncol=3)

#specify row and column names of matrix
rownames(data) <- c('Male', 'Female')

#convert matrix to table
data <- as.table(data)

#display table
data