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如题,出现如下报错应该怎么办呢?
> China<-lca(std.m, series=names(std.m$rate)[1],years=std.m$year,ages=std.m$age,adjust="dt",restype="logrates")
Warning messages:
1: In fts(ages, t(res), frequency = 1/deltat, start = years[1], xname = "Age", :
Please assign column name for the data matrix.
2: In fts(ages, t(fit), frequency = 1/deltat, start = years[1], xname = "Age", :
Please assign column name for the data matrix.
3: In fts(ages, t(mx), start = years[1], frequency = 1/deltat, xname = "Age", :
Please assign column name for the data matrix.
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