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The TDIST function replaces the T.DIST.2T & T.DIST.RT functions in Excel 2010.
描述
该函数返回学生t分布的百分点(概率),其中数值(x)是t的计算值,将为其计算百分点。 t分布用于小样本数据集的假设检验。使用此函数代替t分布的临界值表。
语法
TDIST(x,deg_freedom,tails)
争论
| Argument | 描述 | Required/Optional |
|---|---|---|
| X | The numeric value at which to evaluate the distribution. | Required |
| Deg_freedom | An integer indicating the number of degrees of freedom. | Required |
| Tails | 指定要返回的分布尾数。 如果Tails=1,则TDIST返回单尾分布。 如果Tails=2,则TDIST返回两尾分布。 | Required |
Notes
If Tails=1, TDIST is calculated as TDIST=P( X > x ), where X is a random variable that follows the t-distribution. If Tails=2, TDIST is calculated as TDIST=P(|X| > x)=P(X > x or X < -x)
Deg_freedom和Tails参数被截断为整数。
如果有任何非数字参数,则TDIST返回#VALUE!。错误值。
If Deg_freedom < 1, TDIST returns the #NUM! error value.
如果Tails的值不是1或2,则TDIST返回#NUM!。错误值。
If x < 0, then TDIST returns the #NUM! error value.
Since x < 0 is not allowed, to use TDIST when x < 0, note that TDIST(-x,df,1)=1 – TDIST(x,df,1)=P(X > -x) and TDIST(-x,df,2)=TDIST(x,df,2)=P(|X| > x)
Example
JavaScript 中的 TDIST函数 - 无涯教程网无涯教程网提供The TDIST function replaces the T.DIST.2T & T.DIST.RT functions in Excel 201...
https://www.learnfk.com/javascript/advanced-excel-compatibility-tdist-function.html