add_constant(data[, prepend]) | This appends a constant to the design matrix if prepend==False. |
The following are mostly helper functions that are not separately tested or insufficiently tested.
categorical(data[, col, dictnames, drop]) | Returns a dummy matrix given an array of categorical variables. |
ECDF(values) | Return the Empirical CDF of an array as a step function. |
clean0(matrix) | Erase columns of zeros: can save some time in pseudoinverse. |
fullrank(X[, r]) | Return a matrix whose column span is the same as X. |
isestimable(C, D) | From an q x p contrast matrix C and an n x p design matrix D, checks |
monotone_fn_inverter(fn, x[, vectorized]) | Given a monotone function x (no checking is done to verify monotonicity) |
rank(X[, cond]) | Return the rank of a matrix X based on its generalized inverse, |
recipr(X) | Return the reciprocal of an array, setting all entries less than or equal to 0 to 0. |
recipr0(X) | Return the reciprocal of an array, setting all entries equal to 0 as 0. |
unsqueeze(data, axis, oldshape) | Unsqueeze a collapsed array |