在下是STATA新手,望路过的大虾们指点下迷津:
STATA的教程里写到,stata的数值变量一般存储为double格式,除非你要将其设置为float格式。我所理解的double和float的区别主要在两点:字节数不同(double为8个字节,float为4个字节)和精度不同(double的精度更高),不知道我的理解有问题没有?
另外,我尝试着用stata操作了一下,发现存储的类型并不是double,而是float,我比较困惑,想请教一下各位大虾?
. input v c
v c
1. 40.01 0.4001
2. end
. des
Contains data
obs: 1
vars: 2
size: 12 (99.9% of memory free)
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storage display value
variable name type format label variable label
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v float %9.0g
c float %9.0g
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Sorted by:
Note: dataset has changed since last saved