wblplot
威布尔概率图
描述
wblplot((
创建一个Weibull概率图,以比较数据的分布X
)X
to the Weibull distribution.
wblplot
plots each data point inX
使用加号('+'
)标记并绘制两个代表理论分布的参考线。实心参考线连接数据的第一个四分位数和第三四分位数,虚线的参考线将实线扩展到数据末端。如果示例数据具有Weibull分布,则数据点沿参考线出现。除了Weibull以外的其他分布在数据图中引入了曲率。
returns graphics handles corresponding to the plotted lines, using any of the input arguments in the previous syntaxes.H
= wblplot(___)
例子
输入参数
输出参数
Algorithms
wblplot
matches the quantiles of sample data to the quantiles of a Weibull distribution. The sample data is sorted, scaled logarithmically, and plotted on the x-axis. The y-axis represents the quantiles of the Weibull distribution, converted into probability values. Therefore, the y-axis scaling is not linear.
x轴值是一世th sorted value from a sample of sizen,Y轴值是数据的经验累积分布函数的评估点之间的中点。中点等于 。
wblplot
superimposes a reference line to assess the linearity of the plot. The line goes through the first and third quartiles of the data.
Alternative Functionality
您可以使用probplot
函数以创建概率图。这probplot
function enables you to indicate censored data and specify the distribution for a probability plot.