On plot of factorloading, the two variables of HBV and C1(Not informed of )showed themselves by strong pull, and framed it.
另外，HBV和C1（不知道要接种）在因子载荷图上表现出强有力的拉力，构造因子载荷图基本框架。
2
Methods the factors were extracted by principal component analysis and rotated by Varimax, then calculated the factorloading and the score of common factors.
方法用主成分法提取因子进行方差最大正交旋转，计算因子负荷及主因子得分。
3
Based on the statistical data for the sufficient degree of 137 sand bodies in Jiyang sag to calculate the characteristic value, and make the distribution map of factorloading.