Keywords - Function Groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

xplore

addlist
Adds components to an existing list or creates a new list with specific components.
analyzecsvline
auxiliary quantlet for readcsv(m)
bindatatocl
converts output of bindata to be used as classified data
cdf2quant
approximates the quantile from a cumulative distribution function (CDF) that is given on a grid.
cltobindata
Bins a classified data set cl with frequencies fr
conddlopen
support quantlet for pdf, cdf, and random number generators
corr
computes the (Bravais-Pearson) correlation matrix of a given array
countNaN
Counts how many missing values (NaN) are in an array.
countNotNumber
Counts how many elements of an array are missing values, infinity or -infinity (NaN,Inf or -Inf).
covex
an extended form of the cov function - NaN and all values contained in excl are excluded from computation
cumprodex
an extended form of the cumprod function - NaN and all values contained in excl are excluded from computation
cumsumex
an extended form of the cumsum function - NaN and all values contained in excl are excluded from computation
diff
computes first differences (along the rows) of an array.
discrete
Reduces a matrix to its distinct rows and gives the number of replications of each row in the original dataset. An optional second matrix y can be given, the rows of y are summed up accordingly.
eigensm
Computes the eigenvalues and eigenvectors of symmetric matrices and arrays and sorts them by their eigenvalues in descending order.
etime
computes the time elapsed is seconds between two dates.
excess
Computes the excess (kurtosis-3) for a given vector.
factorial
Computes the factorial for all values in an array.
ginv
calculates a pseudo-inverse of x, such that x*ginv(x)*x = x.
gls
Computes the Generalized Least Squares estimate for the coefficients of a linear model when the errors have a positive definite covariance matrix om.
indexcat
returns the indices of the elements of a vector which fall into specified category.
isInf
Determines whether elements of an array are infinity or -infinity (Inf or -Inf).
isNaN
Determines whether elements of an array are missing values (NaN).
isNumber
Determines whether elements of an array are usual figures or not (NaN, Inf, -Inf).
kron
Computes the Kronecker product of two matrices.
kurtosis
Computes the kurtosis for a given vector.
linapprox
interpolates linearly from given discretized one-dimensional functions on the same grid.
mad
Compute a scale estimate based on the median absolute deviation.
makehelp
makehelp invokes the automatic translator for generating help pages
maxrank
computes the rank vector of a given vector.
meanex
an extended form of the mean function - NaN and all values contained in excl are excluded from computation
order
Computes the order vector of a given vector.
permutation
generates randomly p permutations of {1,...,n}
prodex
an extended form of the prod function - NaN and all values contained in excl are excluded from computation
quantile
Computes the empirical quantiles of a given array.
rank
Computes the rank vector of a given vector.
rankm
Computes the rank r of a matrix x.
readcomponent
internal routine for readlist
readcond
reads the data according to a condition which is explicitly stated as a string.
readcsv
reads numerical data from a csv file
readcsvm
readcsvm reads mixed data from a CSV file
readlist
Reads a composed object as ASCII data from a set of files. All elements of the composed object have to be numerical matrices or textvectors !
readm
readm reads mixed data from a file.
readxls
reads numerical data from a MS Excel file
readxlsm
reads mixed data from a MS Excel file
reduce
Deletes all dimensions with only a single component.
replace
Replaces values by other values.
round
Rounds to a given precision. If the precision is omitted the nearest integer is displayed.
sign
Computes the sign function (0, -1, 1) for zeros, negative or positive values.
skewness
Computes the skewness for a given vector.
stack
Joins two arrays along the third dimension.
sumex
an extended form of the sum function - NaN and all values contained in excl are excluded from computation
symroot
Calculates the symmetric root of a symmetric positive semidefinite matrix,(s.p.s.d.) ie. symroot(x)=symroot(x)' and symroot(x)*symroot(x) = x. uesful for simulation of multivariate normal variates with a given Covariance Structure
varex
an extended form of the var function - NaN and all values contained in excl are excluded from computation
writecomponent
internal routine for writelist
writecsv
writes numerical and text data to a CSV file
writelist
Writes a composed object as ASCII data to a set of files. All elements of the composed object have to be numerical matrices or textvectors !
writem
writes numerical and text data to a text file
xdiag
extracts diagonal elements from a matrix or array
xdiagp
calculates the diagonal elements of a projection matrix X(X'X)^(-1) X' or (diag(w)^(1/2))X(X'diag(w)X)^(-1) X'diag(w)^(1/2); the calculation may be performed with a weight vector W.
xploremain
Example for usage of main routines of libraries
xploretest
executes some tests for the quantlets defined in xplore.lib.
Keywords - Function Groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
(C) MD*TECH Method and Data Technologies, 05.02.2006Impressum