A Small tractor that packs plenty of power. The RK21 is a sub-compact tractor that is perfect for a wide range of property maintenance applications.

The RK Tractors RK21H, part of the RK21 series, is a compact and powerful machine, distinguished by its Yanmar 21HP diesel engine that meets EPA Tier 4 emission standards. This tractor features a hydrostatic transmission with auto …

KMO是做主成分分析的效度检验指标之一,以前的文献中写说,KMO在0.9以上，非常合适做因子分析；在0.8-0.9之间，很适合；在0.7-0.8之间，适合；在0.6-0.7之间，尚可；在0.5-0.6之间，表示很差；在0.5以下应该放弃. 我觉得KMO在0.6左右还行,可能就是做完之后效果不是很好吧,我做因子分析时候的KMO在07左右的,没有小过0.65的,老师没有说不合格的.

2020年5月9日 · 信效度检验是评估问卷质量的重要步骤，其中Cronbach’s α 系数用于评估问卷的信度（一致性），KMO 值用于评估问卷效度（数据是否适合因子分析）。 本文将详细介绍这两个指标的定义、计算公式 和 MATLAB实现，并通过具体的 问卷 数据 进行演示，帮助读者掌握 ...

2021年7月22日 · So I have done quite a bit of research in the past month or so and it seems the tractor that best fits my needs is an RK 21. My only concerns are being able to add front weights because I probably won't be able to get the loader due to cost, nor do I really need it, although I'm sure I could find plenty of uses for it.

RK Tractors RK21: These everyday workhorses combine power & agility, perfect for landscaping, mowing, and light farming. These feature robust engines & 4WD, for small property owners. Yanmar EPA Tier 4 certified 3-cyl, liquid-cooled 21 hp diesel engine; 2-range hydrostatic transmission and auto-throttle feature

FA Q WHO MAKES THE TRACTOR? Our tractors are made by TYM, the largest tractor manufacturer in South Korea and manufacturers of tractors sold in the U.S. under other leading tractor brands. Engines for the RK21-RK55 are made by Yanmar, and the RK74 engines are made by Deutz, all EPA Tier 4 compliant.

The RK21H is a sub-compact tractor priced at $13,699, best for light duty tasks with 21.5hp max power, while the 4044M is a compact utility tractor priced at $34,849, best for medium duty tasks with 42.5hp max power. Not Sure Which Tractor Fits Your Needs?

2023年1月19日 · KMOKMO（Kaiser-Meyer-Olkin)检验统计量是用于比较变量间简单相关系数和偏相关系数的指标。主要应用于多元统计的因子分析。KMO统计量是取值在0和1之间。

一般需要kmo值大于0.6即可，如果是两个分析项，kmo值一定是0.5；因而建议删除掉共同度（共公因子方差）值较低项，这样可以提升kmo值。 如果不输出KMO值，意味着数据质量过差，建议可使用相关分析…