将两个空间变量与一致概率进行比较.
Jonathan Acosta1, Ronny Vallejos2, Aaron M Ellison3,4
1Departamento de Estadística, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile.
Biometrics
|March 11, 2024
概括
我们引入了一种新的空间一致概率 (PA) 方法来量化连续空间变量之间的相似性. 这种方法考虑了空间滞后,并使用森林绿色数据进行了验证.
科学领域:
- 统计 统计 统计 统计
- 空间统计的空间统计.
- 电子货币信息学 (Ecoininformatics) 是一种电子货币信息学.
背景情况:
- 在统计学中,比较连续序列对于仪器验证和评估实际差异至关重要.
- 对于空间数据的应用,现有的一致概率 (PA) 方法是有限的.
- 了解空间关系是生态学和环境科学等领域的关键.
研究的目的:
- 为分析连续空间变量的共识概率 (PA) 进行概括.
- 开发一种方法,其中PA取决于空间滞后,反映空间自相关性.
- 在空间过程中建立PA衰变与距离滞后的条件.
主要方法:
- 引入了一种新的空间一致概率 (PA) 测量方法.
- 建立了PA衰变的理论条件,作为异型静止和非静止空间过程的距离滞后的函数.
- 采用一阶近似估计,确保样本PA的非对称正常性.
主要成果:
- 证明了拟议的空间PA取决于空间滞后.
- 确定了空间PA随着距离延迟的增加而衰变的条件.
- 分析了空间PA对有限样本大小的共变参数的灵敏度.
结论:
- 广义空间PA为评估空间数据一致性提供了一个强大的衡量标准.
- 该方法适用于静止和非静止空间过程.
- 用现实世界森林绿化 (Gcc) 数据进行插图,显示其在生态研究中的实用性.
相关概念视频
Kendall's Coefficient of Concordance
337
Kendall's Coefficient of Concordance (W), also known as Kendall's W, is a non-parametric statistical measure used to assess the agreement or concordance between multiple raters or judges when they rank a set of items. It is often used when you have ordinal data (ranks) and you want to see if there is consistency or consensus among the raters. It is widely applied in research areas such as psychology, medicine, and social sciences, where multiple judges are asked to rank or rate subjects...
337
Scatter Plot
6.8K
The most common and easiest way to display the relationship between two variables, x and y, is a scatter plot. A scatter plot shows the direction of a relationship between the variables. A clear direction happens when there is either:
6.8K
Correlation
11.7K
In statistics, two variables are said to be correlated if the values of one variable are associated with the other variable. Depending on the relationship between two variables, correlation can be of three types– positive correlation, negative correlation, and zero correlation.
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
11.7K
Introduction to Test of Independence
2.2K
In statistics, the term independence means that one can directly obtain the probability of any event involving both variables by multiplying their individual probabilities. Tests of independence are chi-square tests involving the use of a contingency table of observed (data) values.
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
2.2K
One-Way ANOVA: Equal Sample Sizes
3.3K
One-Way ANOVA can be performed on three or more samples with equal or unequal sample sizes. When one-way ANOVA is performed on two datasets with samples of equal sizes, it can be easily observed that the computed F statistic is highly sensitive to the sample mean.
Different sample means can result in different values for the variance estimate: variance between samples. This is because the variance between samples is calculated as the product of the sample size and the variance between the...
Different sample means can result in different values for the variance estimate: variance between samples. This is because the variance between samples is calculated as the product of the sample size and the variance between the...
3.3K
Probability Histograms
11.5K
A probability histogram is a visual representation of a probability distribution. Similar a typical histogram, the probability histogram consists of contiguous (adjoining) boxes. It has both a horizontal axis and a vertical axis. The horizontal axis is labeled with what the data represents. The vertical axis is labeled with probability. Each rectangular bar in the histogram is 1 unit wide, which suggests that the area under each bar equals the probability, P(x), where x is 1, 2, 3, and so on.
11.5K


