R-sq的计算公式为:R-sq = SSR / SST,其中SSR表示回归平方和(模型能够解释的变异部分),SST表示总平方和(数据中的总变异)。 在多元回归中,为了修正由于模型总项数增加带来的影响,还会引入调整的R-sq(R-sq adjusted)。调整的R-sq通过考虑模型中的预测变量数来更准确地反映模型的拟合程度。 希望这样解释,你能更...
拟合的总效果多元全相关系数(Multiple correlation coefficient) R²(即R=Sq)和修正的多元相关系数(Adjusted multiple correlation coefficient)R²adj(即R-Sq(adj)) 由回归方程中的平方和分解公式可知: SSTotal = SSModel + SSError 考虑到SSModel在SSTotal中的比例,定义R平方(R-Square,简记R-Sq): R² =...
E R T T b L SS SS R =1-SS SS L xx yy == R-Sq 是衡量回归方程解释观测数据变异的能力，是回归平方和占总离差平方和的比率。其数值越接近于1代表模型拟合越好。在简单线性回归中，当只有一个自变量时，R-Sq 就等于2r （即先关系数的平方和），其取值范围：0≤R-S q ≤100%，当R-S q=0时...
Metal film cores adjusted by laser spiral are used where the resistor value is above that suited to wire. Similar performance is obtained although short time overload is slightly derated. Characteristics - Electrical Test Condition -55°C ~ 155°C 10 times rated power for 5 seconds ...
adjusted to trade off power, linearity, and efficiency characteristics of the device. The recommended quiescent drain current (IDQ) shown in the RF typical performance table is chosen to best represent the operational characteristics for this device, con- sidering manufacturing variations and expecte...
A top portion of each of the support legs are connected to an upper retaining mechanism that is selectively frictionally engaged with the spine member such that the height of the upper retaining mechanism may be selectively adjusted. Front support braces having first and second brace ends have a...
For the mechanical properties, the mechanical behavior could be adjusted to realize the brittle-to-ductile transition, which was significantly influenced by the crystallization degree. The investigation of the secondary relaxations caused by the transition of conformation of CHDM and THFDM rings proved ...
Metal film cores adjusted by laser spiral are used where the resistor value is above that suited to wire. Similar performance is obtained although short time overload is slightly derated. Characteristics - Electrical Test Condition -55°C ~ 155°C 10 times rated power for 5 seconds ...
Metal film cores adjusted by laser spiral are used where the resistor value is above that suited to wire. Similar performance is obtained although short time overload is slightly derated. Characteristics - Electrical Test Condition -55°C ~ 155°C 10 times rated power for 5 seconds ...
Metal film cores adjusted by laser spiral are used where the resistor value is above that suited to wire. Similar performance is obtained although short time overload is slightly derated. Characteristics - Electrical Test Condition -55°C ~ 155°C 10 times rated power for 5 seconds ...