Scid Help: Graph windows

# Graph windows

Scid has a number of windows which display information graphically. They are explained below.

### Filter Graph window

The Filter Graph window shows trends by date or by Elo rating for the games in the current filter, compared to the entire database. For example, it is useful when the tree is open as a tool showing how the current opening position has changed in popularity in recent years or decades, or whether it is especially popular among higher-rated players such as grandmasters. Each point on the graph represents the number of games in the filter per 1000 games in the entire database, for a particular date or Elo rating range.

When plotting the Filter graph by rating, Scid uses the average (mean) rating for each game. Estimate ratings (such as those in the spelling file) are not used. If one player in a game has a rating but the opponent does not, the opponent is presumed to have the same up to a limit of 2200. For example, if one player is rated 2500 and the opponent has no rating, the mean rating is (2500+2200)/2=2350.

### Rating Graph window

The Rating Graph window shows the rating history of one player or the two players of the current game. You can produce the graph for a single player by pressing the Rating graph button in the player information window, or produce it for the two players of the current game by selecting Rating graph from the [Tools] menu.

### Score Graph window

The Score Graph window shows the numeric evaluations (scores) stored in the comments of the current game as a graph. You can click the left mouse button anywhere in the score graph to go to the corresponding position in the game.

Two types of evaluation comment are recognized: those produced by the Scid analysis window (which have the format

- 1.e4 {"+0.25 ...."}

and are always scores from White's perspective) and those produced by the Crafty annotate command (which have the format

- 1.e4 ({9:+0.25} ....)

and are also scores from White's perspective).

### Tree Graph window

The Tree Graph window is available from the tree window. It shows the performance of the most popular moves from the current position. More information is available from the Tree help page.

(Updated: Scid 3.3, April 2002)