# Format Numbers in a Table

This example shows how to format numbers in a table that is generated by a report generation program. The example creates a table of uniformly distributed random numbers that have a precision of 3 digits after the decimal point. Before the table is created, the numbers are formatted in MATLAB® by using `sprintf`.

### Generate Random Numbers

Generate a 4-by-4 array of random numbers. Initialize the random number generator using a seed of `1`, so that each time the example runs, `rand` produces the same numbers.

```format long rng('default'); rng(1); randNumbers = rand(4)```
```randNumbers = 4×4 0.417022004702574 0.146755890817113 0.396767474230670 0.204452249731517 0.720324493442158 0.092338594768798 0.538816734003357 0.878117436390945 0.000114374817345 0.186260211377671 0.419194514403295 0.027387593197926 0.302332572631840 0.345560727043048 0.685219500396759 0.670467510178402 ```

The numbers display with a precision of 15 digits after the decimal point.

### Format the Numbers

Format the numbers into strings by using `sprintf`. Specify a format for a fixed-point number with three digits after the decimal point. Use `arrayfun` to apply `sprintf` to each number in the array `randNumbers`.

`formattedNumbers = arrayfun(@ (n) sprintf("%1.3f", n),randNumbers)`
```formattedNumbers = 4×4 string "0.417" "0.147" "0.397" "0.204" "0.720" "0.092" "0.539" "0.878" "0.000" "0.186" "0.419" "0.027" "0.302" "0.346" "0.685" "0.670" ```

### Create a Document

Import the DOM package so that you do not have to use long, fully-qualified class names.

`import mlreportgen.dom.*`

Create a PDF document. To create a Microsoft® Word, HTML, or single-file HTML document, change `'pdf'` to `'docx'`, `'html'`, or `'html-file'`, respectively.

`d = Document('RandomNumbers','pdf');`

### Create a Table

Create a table from the array of formatted random numbers.

`t = Table(formattedNumbers);`

Specify the table border and column and row separators. Center the table entries in the table cells.

```t.Style = {Width('100%'),... Border('solid'),... ColSep('solid'),... RowSep('solid')}; t.TableEntriesHAlign = 'center';```

### Generate the Report

Append the table to the document. Close and view the document.

```append(d,t); close(d); rptview(d); ```

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