help limits
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Maximum size limits
Stata/MP and
Small Stata/IC Stata/SE
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# of observations (1) 1,200 2,147,483,647 2,147,483,647
# of variables 99 2,047 32,767
width of a dataset in bytes 800 24,564 393,192
value of matsize 100 800 11,000
# characters in a command 8,697 165,216 1,081,527
# options for a command 70 70 70
# of elements in a numlist 1,600 1,600 1,600
# of interacted continuous variables 8 8 8
# of interacted factor variables 8 8 8
# of unique time-series operators in
a command 100 100 100
# seasonal suboperators per time-series
operator 8 8 8
# of dyadic operators in an expression 66 800 800
# of numeric literals in an expression 50 300 300
# of string literals in an expression 256 512 512
length of string in string expression 244 244 244
# of sum functions in an expression 5 5 5
# of pairs of nested parentheses 249 249 249
# of characters in a macro 8,681 165,200 1,081,511
# of nested do-files 64 64 64
# of lines in a program 3,500 3,500 3,500
# of characters in a program 135,600 135,600 135,600
length of a variable name 32 32 32
length of ado-command name 32 32 32
length of a global macro name 32 32 32
length of a local macro name 31 31 31
length of a string variable 244 244 244
anova
# of variables in one anova term 8 8 8
# of terms in the repeated() option 4 4 4
char
length of one characteristic 8,681 67,784 67,784
constraint
# of constraints 1,999 1,999 1,999
encode and decode
# of unique values 1,000 65,536 65,536
_estimates hold
# of stored estimation results 300 300 300
estimates store
# of stored estimation results 300 300 300
exlogistic and expoisson
maximum memory specification in 2gb 2gb 2gb
memory(#)
grmeanby
# of unique values in varlist _N/2 _N/2 _N/2
graph twoway
# of variables in a plot 100 100 100
# of styles in an option's stylelist 20 20 20
impute
# of variables in varlist 31 31 31
infile
record length without dictionary none none none
record length with a dictionary 524,275 524,275 524,275
infix
record length with a dictionary 524,275 524,275 524,275
label
length of dataset label 80 80 80
length of variable label 80 80 80
length of value label string 32,000 32,000 32,000
length of name of value label 32 32 32
# of codings within one
value label 1,000 65,536 65,536
label language
# of different languages 100 100 100
macros
# of nested macros 20 20 20
manova
# of variables in single manova term 8 8 8
matrix (2)
dimension of single matrix 40 x 40 800 x 800 11,000x11,000
maximize options
iterate() maximum 16,000 16,000 16,000
mprobit
# of categories in a depvar 30 30 30
net (also see usersite)
# of description lines in .pkg file 100 100 100
nlogit and nlogittree
# of levels in model 8 8 8
notes
length of one note 8,681 67,784 67,784
# of notes attached to _dta 9,999 9,999 9,999
# of notes attached to each
variable 9,999 9,999 9,999
numlist
# of elements in the numeric list 1,600 1,600 1,600
reg3, sureg, and other system estimators
# of equations 40 800 11,000
set adosize
memory ado-files may consume 1000K 1000K 1000K
set scrollbufsize
memory for Results window buffer 2000K 2000K 2000k
slogit
# of categories in a depvar 30 30 30
snapshot
length of label 80 80 80
# of saved snapshots 1,000 1,000 1,000
stcox
# of variables in strata() option 5 5 5
stcurve
# of curves plotted on the same graph 10 10 10
table and tabdisp
# of by variables 4 4 4
# of margins, i.e., sum of rows,
columns, supercolumns, and
by groups 3,000 3,000 3,000
tabulate
# of rows in one-way table 500 3,000 12,000
# of rows & cols in two-way table 160x20 300x20 1,200x80
tabulate, summarize (see tabsum)
# of cells (rows X cols) 375 375 375
xt estimation commands (e.g., xtgee,
xtgls, xtpoisson, xtprobit, xtreg
with mle option, and xtpcse when
neither option hetonly nor option
independent are specified)
# of time periods within panel 40 800 11,000
# of integration points accepted 40 800 11,000
by intpoints(#) 195 195 195
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Notes
(1) 2,147,483,647 is a theoretical maximum; memory availability will certainly impose a smaller maximum.
(2) In Mata, matrices are limited only by the amount of memory on your computer.
Matrix size
See matsize.
Determining which flavor of Stata you are running
Type
. about
The response will be Stata/MP, Stata/SE, Stata/IC, or Small Stata. Other information is also shown, including
your serial number. See about.
Also see
Help: [R] about, [D] compress, [D] data types, [D] infile (free format), [D] infile (fixed format), [D]
infile, [R] matsize, [D] memory, [D] obs
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