Missing Observations error when running regression
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I am using MATLAB to complete some regression analysis,
Say I have 40 variables, 35 have the full dataset, monthly data from 1950-2010,
However, some have missing values at the start of the data set,
For example, 36 may only have 1969-2010, 27 1952-2010,
I tried to replace all blanks with a NaN and got the error message,
"Error using svd Input to SVD must not contain NaN"
Is there something I can do?
回答（1 个）
Shrestha Kumar
2018-6-6
0 个投票
Hi,
You can replace NaN with the mean of the data in the column(if it is a numerical value else take the mode). Also, NaN values can be present in the test data, so take care of that too.
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