The name is absent

Note that today did not mistakenly put “Sat.” in S_4. today happens to use only S_l-S_3, leaving S_4 from the lastday
command.

ip6 Storing variables in vectors and matrices

Ken Heinecke, Federal Reserve Bank of Kansas City, FAX 816-881-2199

mkmat takes the variables listed in varlist and stores them in column vectors; that is, N × 1 matrices where N = _N, the
number of observations in the data set. The syntax of mkmat is

mkmat varlist [if exp] [in range] [, matrix (mataame) ]

If the matrix() option is specified, the vectors are also combined in a matrix.

Discussion

Although it is possible to load variables into a matrix using the matrix accum command, programmers may find it more
convenient to work with the variables in their data sets as vectors instead of as cross products. mkmat allows the user a simple
way to load specific variables into matrices in Stata’s memory.

Example

. describe

Contains data from test.dta

Obs:    10 (max=  2562)

Vars:     3 (max=   200)

Width:    12 (max=   402)

1. x              float  7,9.0g

2. y             float  7,9.0g

3. z              float  7,9.0g

Sorted by:
. list

. mkmat y z
. matrix list y
y[10,l]

У
rl 10
r2 9
r3 8
r4 7
гБ 6
гб Б
г7 4
г8 3
г9 2
rlθ 1

. matrix list z

<<   5   6   7   8   9   10   11   >>

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