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Get Summary of Results produced by Functions in R Programming – summary() Function

`summary()` function in R Language is a generic function used to produce result summaries of the results of various model fitting functions.

Syntax: summary(object, maxsum)

Parameters:
object: R object
maxsum: integer value which indicates how many levels should be shown for factors

Example 1:

 `# R program to illustrate``# summary function`` ` `# Initializing a character and``# integer vector``x <``-` `c(``"GFG"``, ``"gfg"``, ``"Geek"``, ``"Geeks"``)``y <``-` `c(``1``, ``2``, ``3``, ``4``)`` ` `# Calling summary() function``summary(x)``summary(y)`

Output:

```Length     Class      Mode
4 character character

Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
1.00    1.75    2.50    2.50    3.25    4.00
```

Example 2:

 `# R program to illustrate``# summary function`` ` `# Initializing a data set``state.region`` ` `# Calling summary() function to ``# get the factor for above data set`` ` `# Getting all the possible levels``summary(state.region)`` ` `# Getting maximum 3 levels``summary(state.region, maxsum ``=` `3``)`

Output:

``` [1] South         West          West          South         West
[6] West          Northeast     South         South         South
[11] West          West          North Central North Central North Central
[16] North Central South         South         Northeast     South
[21] Northeast     North Central North Central South         North Central
[26] West          North Central West          Northeast     Northeast
[31] West          Northeast     South         North Central North Central
[36] South         West          Northeast     Northeast     South
[41] North Central South         South         West          Northeast
[46] South         West          South         North Central West
Levels: Northeast South North Central West
Northeast         South North Central          West
9            16            12            13
South    West (Other)
16      13      21
```

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