Ratio maps and correspondence analysis

We compare two methods for visualising contingency tables and developa method called the ratio map which combines the good properties of both.The first is a biplot based on the logratio approach to compositional dataanalysis. This approach is founded on the principle of subcompositionalcoherence, which assures that results are invariant to considering subsetsof the composition. The second approach, correspondence analysis, isbased on the chi-square approach to contingency table analysis. Acornerstone of correspondence analysis is the principle of distributionalequivalence, which assures invariance in the results when rows or columnswith identical conditional proportions are merged. Both methods may bedescribed as singular value decompositions of appropriately transformedmatrices. Correspondence analysis includes a weighting of the rows andcolumns proportional to the margins of the table. If this idea of row andcolumn weights is introduced into the logratio biplot, we obtain a methodwhich obeys both principles of subcompositional coherence and distributionalequivalence.

Regions of rationality: Maps for bounded agents

An important problem in descriptive and prescriptive research in decision making is to identify regions of rationality, i.e., the areas for which heuristics are and are not effective. To map the contours of such regions, we derive probabilities that heuristics identify the best of m alternatives (m > 2) characterized by k attributes or cues (k > 1). The heuristics include a single variable (lexicographic), variations of elimination-by-aspects, equal weighting, hybrids of the preceding, and models exploiting dominance. We use twenty simulated and four empirical datasets for illustration. We further provide an overview by regressing heuristic performance on factors characterizing environments. Overall, sensible heuristics generally yield similar choices in many environments. However, selection of the appropriate heuristic can be important in some regions (e.g., if there is low inter-correlation among attributes/cues). Since our work assumes a hit or miss decision criterion, we conclude by outlining extensions for exploring the effects of different loss functions.

Audit report on the Iowa Judicial Branch – County Clerks of District Courts, a part of the State of Iowa, for the year ended June 30, 2006

Audit report on the Iowa Judicial Branch – County Clerks of District Courts, a part of the State of Iowa, for the year ended June 30, 2006

Population by Age Group and Perecnt of Total Popluation by County, 2006

The Department of Elder Affairs maintains and provides population and demographic estimates/projections for age 60+ for the state and for its counties and incorporated places. DEA also provides population estimates on poverty, race and ethnicity, and urban and rural for age 60+. This statistical information is obtained from numerous resources, including the State Data Center of Iowa, US Census Bureau, the Administration on Aging, and Iowa State University Census Services. "The Census Bureau uses the latest available estimates as starting points for population projections. Sometimes the user may see both an estimate and a projection available for the same reference date, which may not agree because they were produced at different times. In such cases, estimates are the preferred data." (Source: State Data Center)

Occurrence of Cinara spp. (Hemiptera, Aphididae) on Pinus spp. (Pinaceae), in the county of Lages-SC, Brazil

A population survey of the giant conifer aphid Cinara spp. was carried out in two areas of Pinus elliottii using yellow pan traps, during two years, from July 1997 to June 1999. During the collection period, the predominant species was Cinara pinivora (Wilson, 1919), representing 99% of the collected species. A few specimens of Cinara maritimae (Dufour, 1833) and only one winged female of Cinara fresai Blanchard, 1939 were collected. The population of C. pinivora was statistically higher in the area with 4.5 year-old trees than in the 1.5 year-old ones. The highest population peaks were registered in July 1997 and in August 1998. An unexpected high number of winged parthenogenetic females was collected in December 1998. C. fresai Blanchard, 1939 is recorded for the first time for Brazil.

Audit report on the Butler County Solid Waste Commission for the year ended June 30, 2007

Audit report on the Butler County Solid Waste Commission for the year ended June 30, 2007

Audit report on the South Dallas County Landfill Agency for the year ended June 30, 2007

Audit report on the South Dallas County Landfill Agency for the year ended June 30, 2007

Improving Transition Outcomes: Henry County Transition Partners: Infrastructure Building Replication Template

Replication Template for Improving Transition Outcomes Henry County Transition Partners Prototype. This concise document will help you build a community team and the infrastructure necessary to implement and plan for sustaining specific initiatives.

Improving Transition Outcomes: Henry County Transition Partners: Guidebook Part 1

Part 1 of 7 for Henry County's Transition Partners Guidebook specific to youth with disabilities transitioning from high school to employment, post-secondary education, or adult services.

Improving Transition Outcomes: Henry County Transition Partners: Guidebook Part 2

Part 2 of 7 for Henry County's Transition Partners Guidebook specific to youth with disabilities transitioning from high school to employment, post-secondary education, or adult services.

Improving Transition Outcomes: Henry County Transition Partners: Guidebook Part 3

Part 3 of 7 for Henry County's Transition Partners Guidebook specific to youth with disabilities transitioning from high school to employment, post-secondary education, or adult services.

Improving Transition Outcomes: Henry County Transition Partners: Guidebook Part 4

Part 4 of 7 for Henry County's Transition Partners Guidebook specific to youth with disabilities transitioning from high school to employment, post-secondary education, or adult services.

Improving Transition Outcomes: Henry County Transition Partners: Guidebook Part 5

Part 5 of 7 for Henry County's Transition Partners Guidebook specific to youth with disabilities transitioning from high school to employment, post-secondary education, or adult services.