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# ismissm()

Description:

Find missing values in a matrix.

Syntax:

 A.ismissm() Find the null values or empty strings in matrix A and return a vector the same size as A A.ismissm(indicator) Find the specified value indicator in matrix A and return a vector the same size as A

Note:

The function marks missing values in the return value with 1.

Parameter:

 A A two-dimensional sequence indicator A number/string/sequence

Return value:

Sequence

Example:

 A 1 =[[1,2,3,,2,,1,1,1,1],[2,,4,5,6,7]] 2 =A1.ismissm() 3 =[["one",,"three","four",, ,"ten"],["one","two"," ","one"]] 4 =A3.ismissm() 5 =[[1,1,1,1,0,1,1,1],[1,1,1,1,0,1,1,1],[0,0,0,0,1,0,1]] 6 =0 7 =A5.ismissm(A6) 8 =[0] 9 =A5.ismissm(A8) 10 =[["one","one","two","one","one"],["two","one","one","one"]] 11 =["two"] 12 =A10.ismissm(A11)