Class: MiniMat

MiniMat

A Matrix Object

Constructor

new MiniMat(data, x_len, y_lenopt)

Parameters:
Name Type Attributes Description
data Array.<Object> an array containing all data, column major (column major order is like Octave and R)
x_len int the number of columns.
y_len int <optional>
 the number of rows, default 1.
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Classes

Eye
FilledMat
FromFile
FromJson
Ones
OnLoad
Zeroes

Methods

apply(fcn)

applies a function to each element
Parameters:
Name Type Description
fcn function a function which replaces values of its input to its output.
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col(index, to_indexopt)

Get a column or columns by index.
Parameters:
Name Type Attributes Description
index int the first column index of the desired selection
to_index int <optional>
 the last column index of the desired selection. if to_index is unset or -1, only the index column is returned
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col_set(index, data, to_index)

Set a columns data in place.
Parameters:
Name Type Description
index int which column to change
data Array.<Object> the data to change the column to
to_index int the last column to change, if changing multiple columns.
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diag()

Get the diagonal of the matrix
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elem_inv()

returns the elementwise inverse in place
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elementwise(mat, operation)

Perform an in-place elementwise operation on the matrix. This is an in place operation, so the object reference is changed, but the one passed is not.
Parameters:
Name Type Description
mat MiniMat Another matrix to use for values for the operation
operation function a function which returns one value given two
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json()

Get a JSON string from a matrix
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norm(lopt)

Return the matrix norm of a level passed in
Parameters:
Name Type Attributes Default Description
l int <optional>
 2 the matrix norm level to take, default 2. Can be inf or fro also.
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normalize(rowvecsopt)

normalize by vectors
Parameters:
Name Type Attributes Default Description
rowvecs bool <optional>
 false true to normalize on rows
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row(index, to_indexopt)

Get a row or rows by index.
Parameters:
Name Type Attributes Description
index int the first row index of the desired selection
to_index int <optional>
 the last row index of the desired selection. if to_index is unset or -1, only the index row is returned
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row_set(index, data, to_index)

Set a row's data in place.
Parameters:
Name Type Description
index int which row to change
data Array.<Object> the data to change the row to
to_index int the last row to change, if changing multiple rows.
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same_dims()

Check that the sizes are the same for these
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toString(machineopt)

Give a string value for either human or machine inspection
Parameters:
Name Type Attributes Default Description
machine bool <optional>
 false Whether or not to return a test comparision string.
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trace()

Get the trace of the matrix
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