| intro |
Mata functions |
| abs() |
Absolute value (length) |
| all() |
Element comparisons |
| args() |
Number of arguments |
| ascii() |
Manipulate ASCII codes |
| assert() |
Abort execution if false |
| blockdiag() |
Block-diagonal matrix |
| C() |
Make complex |
| c() |
Access c() value |
| callersversion() |
Obtain version number of caller |
| cat() (pdf) |
Load file into string matrix |
| chdir() |
Manipulate directories |
| cholesky() |
Cholesky square-root definition |
| cholinv() |
Symmetric, positive-definite matrix inversion |
| cholsolve() |
Solve AX=B for X using Cholesky decomposition |
| comb() |
Combinatorial function |
| cond() |
Condition number |
| conj() |
Complex conjugate |
| corr() |
Make correlation matrix from variance matrix |
| cross() |
Cross products |
| crossdev() |
Deviation cross products |
| designmatrix() |
Design matrices |
| det() |
Determinant of matrix |
| diag() |
Create diagonal matrix |
| diag0cnt() |
Count zeros on diagonal |
| diagonal() |
Extract diagonal into column vector |
| dir() |
File list |
| direxists() |
Whether directory exists |
| direxternal() |
Obtain list of existing external globals |
| display() |
Display text interpreting SMCL |
| displayas() |
Set display level |
| displayflush() |
Flush terminal-output buffer |
| dsign() |
FORTRAN-like DSIGN() function |
| e() |
Unit vectors |
| editmissing() |
Edit matrix for missing values |
| edittoint() |
Edit matrix for roundoff error (integers) |
| edittozero() |
Edit matrix for roundoff error (zeros) |
| editvalue() |
Edit (change) values in matrix |
| eigensystem() |
Eigenvalues and eigenvectors |
| eltype() |
Element type and organizational type of object |
| epsilon() |
Unit roundoff error (machine precision) |
| _equilrc() |
Row and column equilibration |
| error() |
Issue error message |
| errprintf() |
Format output and display as error message |
| exit() |
Terminate execution |
| exp() |
Exponentiation and logarithms |
| factorial() |
Factorial and gamma function |
| favorspeed() |
Whether speed or space is to be favored |
| fft() |
Fourier transform |
| fileexists() |
Whether file exists |
| _fillmissing() |
Fill matrix with missing values |
| findexternal() |
Find, create, and remove external globals |
| findfile() |
Find file |
| fopen() |
File I/O |
| fullsvd() |
Full singular value decomposition |
| Hilbert() |
Hilbert matrices |
| I() |
Identity matrix |
| indexnot() |
Find character not in list |
| invorder() |
Permutation vector manipulation |
| invsym() |
Symmetric real matrix inversion |
| isdiagonal() |
Whether matrix is diagonal |
| isfleeting() |
Whether argument is temporary |
| isreal() |
Storage type of matrix |
| isrealvalues() |
Whether matrix contains only real values |
| issymmetric() |
Whether matrix is symmetric (Hermitian) |
| isview() |
Whether matrix is view |
| J() |
Matrix of constants |
| logit() |
Log odds and complementary log-log |
| lowertriangle() |
Extract lower or upper triangle |
| lud() |
LU decomposition |
| luinv() |
Square matrix inversion |
| lusolve() |
Solve AX=B for X using LU decomposition |
| makesymmetric() |
Make square matrix symmetric (Hermitian) |
| matexpsym() |
Exponentiation and logarithms of symmetric matrices |
| matpowersym() |
Powers of a symmetric matrix |
| mean() |
Means, variances, and correlations |
| mindouble() |
Minimum and maximum nonmissing value |
| minmax() |
Minimums and maximums |
| missing() |
Count missing and nonmissing values |
| missingof() |
Appropriate missing value |
| mod() |
Modulus |
| more() |
Create –more– condition |
| norm() |
Matrix and vector norms |
| normal() |
Cumulatives, reverse cumulatives, and densities |
| panelsetup() |
Panel-data processing |
| pathjoin() |
File path manipulation |
| pinv() |
Moore–Penrose pseudoinverse |
| polyeval() |
Manipulate and evaluate polynomials |
| printf() |
Format output |
| qrd() (pdf) |
QR decomposition |
| qrinv() |
Generalized inverse of matrix via QR decomposition |
| qrsolve() |
Solve AX=B for X using QR decomposition |
| quadcross() |
Quad-precision cross products |
| range() |
Vector over specified range |
| rank() |
Rank of matrix |
| Re() |
Extract or real or imaginary part |
| reldif() |
Relative/absolute difference |
| rows() |
Number of rows and number of columns |
| rowshape() |
Reshape matrix |
| setbreakintr() |
Break-key processing |
| sign() |
Sign and complex quadrant functions |
| sin() |
Trigonometric and hyperbolic functions |
| sizeof() |
Number of bytes consumed by object |
| solvelower() |
Solve AX=B for X, A triangular |
| solve_tol() |
Tolerance used by solvers and inverters |
| sort() |
Reorder rows of matrix |
| spline3() |
Cubic spline interpolation |
| sqrt() |
Square root |
| st_addobs() |
Add observations to current Stata dataset |
| st_addvar() |
Add variable to current Stata dataset |
| st_data() |
Load copy of current Stata dataset |
| st_dir() |
Obtain list of Stata objects |
| st_dropvar() |
Drop variables or observations |
| st_global() |
Obtain strings from and put strings into global macros |
| st_isfmt() |
Whether valid %fmt |
| st_isname() |
Whether valid Stata name |
| st_local() |
Obtain strings from and put strings into Stata macros |
| st_macroexpand() |
Expand Stata macros in string |
| st_matrix() |
Obtain and put Stata matrices |
| st_numscalar() |
Obtan values from and put values into Stata scalars |
| st_nvar() |
Number of variables and observations |
| st_rclear() |
Clear r(), e(), or s() |
| st_store() |
Modify values stored in current Stata dataset |
| st_subview() |
Make view from view |
| st_tempname |
Temporary Stata names |
| st_tsrevar() |
Create time-series op.varname variables |
| st_updata |
Determine or set data-have-changed flag |
| st_varformat() |
Obtain/set format, etc., of Stata variable |
| st_varindex() |
Obtain variable indices from variable names |
| st_varname() |
Obtain variable names from variable indices |
| st_varrename() |
Rename Stata variable |
| st_vartype() |
Storage type of Stata variable |
| st_view() |
Make matrix that is a view onto current Stata dataset |
| st_viewvars() |
Variables and observations of view |
| st_vlexists() |
Use and manipulate value labels |
| stata() |
Execute Stata command |
| strdup() |
String duplication |
| strlen() |
Length of string |
| strmatch() |
Determine whether string matches pattern |
| strofreal() |
Convert real to string |
| strpos() |
Find substring in string |
| strreverse() |
Reverse string |
| strtrim() |
Remove blanks |
| strupper() |
Convert string to uppercase (lowercase) |
| subinstr() |
Substitute text |
| substr() |
Extract substring |
| sum() |
Sums |
| svd() |
Singular value decomposition |
| svsolve() |
Solve AX=B for X using singular value decomposition |
| swap() |
Interchange contents of variables |
| Toeplitz() |
Toeplitz matrices |
| tokens() |
Obtain tokens from string |
| trace() |
Trace of square matrix |
| _transpose() |
Transposition in place |
| transposeonly() |
Transposition without conjugation |
| trunc() |
Round to integer |
| uniform() |
Uniformly distributed random numbers |
| uniqrows() |
Obtain sorted, unique values |
| unitcircle() |
Complex vector containing unit circle |
| unlink() |
Erase file |
| valofexternal() |
Obtain value of external global |
| Vandermonde() |
Vandermonde matrices |
| vec() |
Stack matrix columns |
;)