Reference Bulb Spring, 3/8

使用Oringin绘图——单X多Y图

每年到修改论文的时候，发现很多同学不懂图形和数据处理，出来的图形惨不忍睹。有的人想学没处学，有的根本不想学，最后的结果是研究生给本科生干活，老师给学生干活。所以有空的时候，想以这种方式写一点数据处理技术，给自己的未来减负。先从最简单的单X多Y图说起。 实验过程中经常遇到系列样品的表征数据，比如红外光谱、X-射线衍射等等，通常这些仪器测定的步长一致，也即X轴完全相同，这时候可以把系列数据绘制在一个图形中，图形的信息量丰富，也方便数据比较。例如这次本科论文中有一位同学的一组红外数据

Use of Internaland External Standardsor Reference RNAs for A

between samples. This RNA serves as an internal standard or reference against which other RNA values can be normalized. This process corrects for sample to sample variation. The ideal RNA species for an "internal standard" should be expressed

Use of Internal and External Standards or Reference RNAs for

as an internal standard or reference against which other RNA values can be normalized. This process corrects for sample to sample variation. The ideal RNA species for an "internal standard" should be expressed at a constant level