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一、前言趋势分析是利用数理统计的方法和电子计算机研究化探分析数据在空间上的变化规律,即把样品中元素含量看成空间坐标的函数,用一定的数学公式计算出的数学面,来逼近观测数据所反映的面,这个数学面称为趋势面。对于一组化探分析数据所计算出的趋势值,可分解为趋势部分(反映区域性变化规律)和残差部分(反映局部范围的异常)以及随机因素所造成的偏倚,去掉随机因素的影响,更好地总
First, the foreword Trend analysis is the use of mathematical statistics and computer analysis of geochemical analysis of spatial changes in the data, that is, the sample element content as a function of space coordinates, with a certain mathematical formula to calculate the mathematical surface, To approximate the surface reflected by the observed data, this mathematical surface is called the trend surface. For a group of geochemical analysis data calculated by the trend value can be broken down into the trend of the part (reflecting the regional changes in law) and the residual part (reflecting the local scope of the abnormal) and random factors caused by the bias, remove the impact of random factors Better, better