REPOP -- efficient replicating n-d array operations
repop
auto replicating operators in matlab
Replicating arithmetical and logical operators.
Does element by element operations on X and Y where non-same sized dimensions are implicity wrapped round to match the size of the larger to give a result matrix Z with size max(size(X),size(Y));
In general this is at least 2x faster than the equivalent matlab code using repmats and has the advantage of requiring no additional memory.
Example Usage:
X = randn(10000,10); example signal with data in rows
stdX = repop(X,mean(X,1),'-'); subtract the mean vector
stdX = repop(stdX,std(stdX,0,1),'/'); % divide by std-deviation
Operator can be one of:
Arthemetical -- returns a double matrix
'+','.+',plus - Implicitly repmatted elementwise addition
'-','.-',minus - Implicitly repmatted elementwise addition
'','.',times - Implicitly repmatted elementwise multiplication
'^','.^',power - Implicitly repmatted elementwise raise X to power Y
'','.',ldivide- Implicitly repmatted elementwise divide Y by X
'/','./',rdivide- Implicitly repmatted elementwise divide X by Y
Relational -- returns a logical matrix
N.B. for complex inputs the <,>,<=,>= operators are based upon abs(x) (not real(x) as in matlab)
'==',eq - Implicitly repmatted elementwise equality
'~=',ne - Implicitly repmatted elementwise dis-equality
'<' ,lt - Implicitly repmatted elementwise less than
'>' ,gt - Implicitly repmatted elementwise greater than
'<=',le - Implicitly repmatted elementwise less than equal
'>=',ge - Implicitly repmatted elementwise greater than equal
Citar como
Jason Farquhar (2024). REPOP -- efficient replicating n-d array operations (https://github.com/jadref/repop/releases/tag/1.3.1.0), GitHub. Recuperado .
Compatibilidad con la versión de MATLAB
Compatibilidad con las plataformas
Windows macOS LinuxCategorías
- MATLAB > Language Fundamentals > Operators and Elementary Operations > Logical (Boolean) Operations >
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Versión | Publicado | Notas de la versión | |
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1.3.1.0 | See release notes for this release on GitHub: https://github.com/jadref/repop/releases/tag/1.3.1.0 |
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1.3.0.0 | bug fix update |
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1.2.0.0 | Fixed bug with the repop(x,'op',y) calling convention |
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1.1.0.0 | Some minor code updates to make build better with 64bit macs. |
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1.0.0.0 | bug fixes to memory management errors
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