UC知道MATLAB读取excel数据求助
来源：百度知道 编辑：UC知道 时间：2024/06/21 10:53:30
想从excel中读取一个这样的矩阵
0 9 inf 3 inf
9 0 2 inf 7
inf 2 0 2 4
3 inf 2 0 inf
inf 7 4 inf 0
可是用xslread函数读取时inf会变成NaN
0.0 9.0 NaN 3.0 NaN
9.0 0.0 2.0 NaN 7.0
NaN 2.0 0.0 2.0 4.0
3.0 NaN 2.0 0.0 NaN
NaN 7.0 4.0 NaN 0.0
用excel link中的putmatrix 全部数据都变成cell数据类型
0 9 'inf' 3 'inf'
9 0 2 'inf' 7
'inf' 2 0 2 4
3 'inf' 2 0 'inf'
'inf' 7 4 'inf' 0
期待高手解决一下!!
0 9 inf 3 inf
9 0 2 inf 7
inf 2 0 2 4
3 inf 2 0 inf
inf 7 4 inf 0
可是用xslread函数读取时inf会变成NaN
0.0 9.0 NaN 3.0 NaN
9.0 0.0 2.0 NaN 7.0
NaN 2.0 0.0 2.0 4.0
3.0 NaN 2.0 0.0 NaN
NaN 7.0 4.0 NaN 0.0
用excel link中的putmatrix 全部数据都变成cell数据类型
0 9 'inf' 3 'inf'
9 0 2 'inf' 7
'inf' 2 0 2 4
3 'inf' 2 0 'inf'
'inf' 7 4 'inf' 0
期待高手解决一下!!
因为在EXCEL里没有正无穷的表示,你的inf 当作文本导进了MATLAB,当然就是NAN,即是未知量了.直接在EXCEL里没法处理,至少我不知道,我是在MATLAB里处理的:
c =
0.0 9.0 NaN 3.0 NaN
9.0 0.0 2.0 NaN 7.0
NaN 2.0 0.0 2.0 4.0
3.0 NaN 2.0 0.0 NaN
NaN 7.0 4.0 NaN 0.0
>> c(find(isnan(c)))=inf%%查找c中的NAN,换成inf.
c =
0 9 Inf 3 Inf
9 0 2 Inf 7
Inf 2 0 2 4
3 Inf 2 0 Inf
Inf 7 4 Inf 0
这样就把你的NAN换成INF了.