II.5.7 - ANALYSIS Button

• Monte Analysis - a tool to analyze Monte Carlo runs
• Monte Comparison - a tool to compare two Monte Carlo runs to see if they are statistically different
• Date Tool- expresses Julian day as a calendar date
• Mouse Tool - tool for changing functions of the mouse buttons on the river map
• Display Map - the map of the river.

Results of a Monte Carlo run can be viewed with the Analysis Tool depicted below. This is opened with the Analysis button and controlled as follows:

Fig. 57 Analysis Tool menu

2. An alternative name ¹ is typed here, selected from the File Manager using the drag-and-drop function, or selected from a list popped up using the "read alternative" menu button ²
3. If the file has multiple years, a specific year ³ can be selected¹
4. Select release and passage point ⁴ from submenu
5. Select data and graph type ⁵
6. Plot graph ⁶
7. Two alternatives can be compared with the Alternative Comparison window accessed by left-clicking on the Comparison ⁷ button.

A survival histogram (Fig. 58) or cumulative distribution can be opened for passage points of any release. Features include:

• View survival statistical properties ¹
• View statistical properties of travel time ²
• View a histogram of survival between release and river segment ³

Fig. 58 Survival histogram

Travel time graph

The travel time between point of release and points downstream can be viewed as either a histogram or cumulative distribution (Fig. 59); This selection is made in the analysis tool under Graph Type.

Fig. 59 Travel time cumulative distribution

Note: If a flow window is open an average water flow at that point will be listed in the summary data. The average is taken over the period of time in which the fish traveled from release to the passage point.

Monte Comparison: Comparing Two Distributions

The Alternative Comparison Tool shows if probability distributions from two alternatives are statistically different (Fig. 60).

Fig. 60 Tool for comparing probability distributions

The tool is used as follows:

2. Alternatives are typed onto appropriate lines ¹, ².
3. Release points for each alternative are selected and Passage Point defined. A Data Type is also required ³.
4. Click the Compute button ⁴.

• The d statistic ⁵ is the maximum value of the absolute difference between the two cumulative distributions being tested.
• The probability measure ⁶ is the fraction of times that a sample drawn from a distribution would be less than d if the two distributions were the same.

  Probability (d > observed by chance if pdf the same)

Date Tool: Converting Dates

This tool allows the user to convert Julian days to day and month. The tool has the following controls:

• right-click the Month button to access months
• left-click and drag the Day slider or type a number with the keyboard to change Day
• left-click and drag the Julian Date slider or type a number with the keyboard to set Julian Date
• click the Done button to close the Date Tool.

The Mouse Tool allows the user to redefine the function of the mouse buttons when used on the River Map. Clicking the mouse buttons can open some of the windows and tools that are available from the main panel menu buttons. The exact function of the button depends on where the mouse arrow is located, which button is pressed, and how the functions have been assigned. Four categories of selection are available:

• On dam
• On reach
• On release
• On headwater

Display Map: Opening River Map

Selecting this opens the river map if it is not being displayed already.

Columbia River Salmon Passage Model CRiSP.1.5 User Manual
Copyright © 1996, Columbia Basin Research. All rights reserved.