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Complete list of differences of Stata flavor

 

 

Maximum size limits

            

          Stata/IC

          

     Stata/MP and

Stata/SE

 

# of observations


2,147,483,619

1,099,511,627,775(MP)(1)
2,147,483,619 (SE) (1)
# of variables 2 048 120 000 (MP)
32 767 (SE)
# of RHS variables 798 65 532 (MP)
10 998 (SE)
# characters in a command 264 408 4 227 159
# options for a command 256 256
# of elements in a numlist 2 500 2 500
# of interacted continuous variables  64 64
# of interacted factor variables 8 8
# of unique time-series operators in a command 100 100
# seasonal suboperators per time-series operator 8  8
# of dyadic operators in an expression  800 800 
# of numeric literals in an expression 300 300
# of string literals in an expression  512  512
length of string in string expression (bytes)  2,000,000,000  2,000,000,000
# of sum functions in an expression  5  5
# of pairs of nested parentheses  249  249

# of characters in a macro (2)

264 392 15 480 200 (MP)
  4 227 143 (SE)
# of nested do-files 64 64
# of lines in a program 3 500 3 500
# of bytes in a program 135 600 135 600
length of a variable name (characters) 32 32
length of ado-command name (characters) 32 32
length of a global macro name (characters) 32 32
length of a local macro name (characters) 31 31
length of a str# variable (bytes) 2 045 2 045
length of a strL variable (bytes) 2 000 000 000  2 000 000 000
anova    
 # of variables in one anova term 8  8
# of terms in the repeated() option  4 4
 char    
length of one characteristic (bytes) 67 784 67 784
constraint    
 # of constraints 1 999 1 999
encode and decode    
# of unique values 65 536 65 536
_estimates hold    
# of stored estimation results 300 300
estimates store    
# of stored estimation results 300 300
exlogistic and expoisson    
maximum memory specification in memory(#) 2gb  2gb 
frames    
# of frames 100 100
grmeanby    
# of unique values in varlist _N/2 _N/2
graph    
minimum graph size (inches) 1  1
maximum graph size (inches) 100  100
graph twoway    
# of variables in a plot 100 100
# of styles in an option's stylelist  20  20
import sas    
 # of variables 2 048 32 766
import spss    
 # of variables 2 048 32 766
impute    
 # of variables in varlist 31 31
infile    
 record length without dictionary  none  none
 record length with a dictionary  524 275  524 275
infix    
record length with a dictionary 524 275 524 275
label    
length of dataset label (characters) 80 80
length of variable label (characters)  80 80
length of value label string (bytes) 32 000 32 000
length of name of value label (characters) 32 32
# of codings within one value label 65 536 65 536
label language    
 # of different languages 100 100
macros    
 # of nested macros  20 20
manova    
 # of variables in single manova term 8  8
matrix (3)    
 dimension of single matrix 800 x 800  65 534 x 65 534 (MP)
11 000 x 11 000 (SE)
maximize options    
 iterate() maximum 16 000 16 000
mprobit    
# of categories in a depvar 30 30
net (also see usersite)    
# of description lines in .pkg file 100 100
nlogit and nlogittree    
# of levels in model 8 8
notes    
length of one note (bytes) 67 784 67 784
# of notes attached to _dta 9 999 9 999
# of notes attached to each variable 9 999 9 999
numlist    
# of elements in the numeric list 2 500 2 500
_pctile    
# of percentiles 4 096 4 096
reg3, sureg, and other system estimators    
 # of equations 800 65 534 (MP)
11 000 (SE)
set adosize    
memory ado-files may consume  1000 K 1000 K
set scrollbufsize    
memory for Results window buffer 2000 K 2000 K
slogit    
# of categories in a depvar 30 30
snapshot    
length of label (characters) 80 80
# of saved snapshots 1 000 1 000
stcox    
 # of variables in strata() option 5  5
stcurve    
# of curves plotted on the same graph 10 10
table and tabdisp    
 # of by variables 4 4
 # of margins, i.e., sum of rows, columns, supercolumns, and by groups  3 000  3 000
tabulate    
# of rows in one-way table 3 000 12 000
# of rows & cols in two-way table 300 x 20 1 200 x 80
tabulate, summarize (see tabsum)    
# of cells (rows X cols) 375 375
teffects    
# of treatments 20 20
xt estimation commands    
(e.g., xtgee, xtgls, xtpoisson, xtprobit, xtreg
with mle option, and xtpcse when neither
option hetonly nor option independent is
specified)
   
# of time periods within panel 800  65 534 (MP)
11 000 (SE)
# of integration points accepted by intpoints(#) 195 195

 

Notes:

(1) For Stata/MP, the maximum number of observations is 1,099,511,627,775, and for Stata/SE, the maximum number is 2,147,483,619. In practice, both flavors are limited by memory.

(2) The maximum length of the contents of a macro are fixed in Stata/IC and settable in Stata/SE and Stata/MP. The currently set maximum length is recorded in c(macrolen); type display c(macrolen). The maximum length can be changed with set maxvar. If you set maxvar to a larger value, the maximum length increases; if you set maxvar to a smaller value, the maximum length decreases. The relationship between them is maximum_length = 129*maxvar + 200.

(3) In Mata, matrices are limited only by the amount of memory on your computer.

 

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