Editing Pictogram (section)

==In mathematics==
[[File:Titanic casualties.svg|thumb|alt=table with boxes instead of numbers, the amounts and sizes of boxes represent amounts of people|A compound pictogram showing the breakdown of the survivors and deaths of the maiden voyage of the [[RMS Titanic]] by class and age/gender]]

In statistics, pictograms are charts in which icons represent numbers to make it more interesting and easier to understand. A key is often included to indicate what each icon represents. All icons must be of the same size, but a fraction of an icon can be used to show the respective fraction of that amount.<ref>{{cite web|url=http://www.bbc.co.uk/skillswise/factsheet/ma37grap-e3-f-pictograms|title=Understanding pictograms|website=[[BBC]] — Skillswise|access-date=2014-05-11|archive-url=https://web.archive.org/web/20131229012040/http://www.bbc.co.uk/skillswise/factsheet/ma37grap-e3-f-pictograms|archive-date=2013-12-29}}</ref>

{|
|-style="vertical-align:top"
|style="width:17em" | For example, the following table:
{| class="wikitable sortable"
! Day !! Letters sent
|-
| Monday || 10
|-
| Tuesday || 17
|-
| Wednesday || 29
|-
| Thursday || 41
|-
| Friday || 18
|}
|can be graphed as follows:
{| class="wikitable sortable"
|-
! Day !! Letters&nbsp;sent
|-
| Monday || [[File:Email Silk.svg|alt=one envelope]]
|-
| Tuesday || [[File:Email Silk.svg|alt=one envelope]]&nbsp;[[File:Image from the Silk icon theme by Mark James half left.svg|alt=and a half]]
|-
| Wednesday || [[File:Email Silk.svg|alt=three envelopes]]&nbsp;[[File:Email Silk.svg|alt=]]&nbsp;[[File:Email Silk.svg|alt=]]
|-
| Thursday || [[File:Email Silk.svg|alt=four envelopes]]&nbsp;[[File:Email Silk.svg|alt=]]&nbsp;[[File:Email Silk.svg|alt=]]&nbsp;[[File:Email Silk.svg|alt=]]
|-
| Friday || [[File:Email Silk.svg|alt=two envelopes]]&nbsp;[[File:Email Silk.svg|alt=]]
|}
|-
| colspan="2" | <small>Key: [[File:Email Silk.svg|alt=one envelope]] = 10 letters; &nbsp;&nbsp;[[File:Image from the Silk icon theme by Mark James half left.svg|alt=a half envelope]] = 5 letters<br />As the values are rounded to the nearest 5 letters, the second icon on Tuesday is the left half of the original.</small>
|}