[英]r ncdf4 cannot read character variable from netcdf
我正在尝试从包含字符的netcdf文件中读取变量
library(ncdf4)
NCFile <- nc_open('MD02_2575.age')
ncvar_get(NCFile, 'Label')
我预计
'KIA33119' 'KIA24904' 'KIA33120' 'KIA24905' 'KIA33121' 'KIA24906' 'KIA25875' 'KIA24907' 'KIA24903' 'User ' 'User ' 'User ' 'User ' 'User '
基于我用Matlab读取文件时得到的结果,但使用RI获得
[1] "KKKKKKKKKUUUUU" "IIIIIIIIIsssss" "AAAAAAAAAeeeee" "323232222rrrrr" "343434544 " "191919899 " "102020700 " "940516573 "
我想使用R。这看起来像是一个编码问题,有人建议如何读取变量吗?
Label
是带有字符的2D数组;
char Label(Label_Characters, Length);
另外, ncdump
很难将其转换为字符串列表,例如: ncdump -v Label MD02_2575.age
还会给出“不正确”的结果:
Label =
"KKKKKKKKKUUUUU",
"IIIIIIIIIsssss",
"AAAAAAAAAeeeee",
"323232222rrrrr",
"343434544 ",
"191919899 ",
"102020700 ",
"940516573 " ;
我写了“ incorrect”,因为从NetCDF文件本身来看,不清楚(1)需要将各个字符连接成字符串,并且(2)如果是这种情况,应沿哪个维度执行连接。 老实说,我很惊讶ncdump
,R和Matlab做到了吗?
只是为了说明问题(使用Python):
import netCDF4 as nc4
f = nc4.Dataset('MD02_2575.age')
v = f.variables['Label'][:,:]
label1 = v[:,0].tostring() # Correct
label2 = v[0,:].tostring() # Same as `ncdump`, `R`, ..
print(label1, label2)
结果为: 'KIA33119' 'KKKKKKKKKUUUUU'
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