d Difference (time-series) functions for series.

@datapath EViews data directory.

@date Date number of observation.

@dateadd Date number after applying offset.

@datediff Difference between two date numbers.

@dateceil Last possible date in a time period.

@datefloor Earliest possible date in a time period.

@datenext First possible date in the next time period.

@datepart Extract part of a date number.

@datestr String representation of a date number.

@dateval Date number associated with a string representation of a date.

@day Day of observation.

@daycount Number of days of week in observation.

@dbeta Beta distribution probability density.

@dbinom Binomial probability function.

@dbname String containing the default database name .

@dbvnorm Bivariate normal probability density function.

@dchisq Chi-square probability density function.

@dcumdn Difference of cumulative sum of negative (below threshold) changes in a series.

@dcumdp Difference of cumulative sum of positive (above threshold) changes in a series.

@dcumdz Difference of cumulative sum of zero (at threshold) changes in a series.

@demean Compute deviations from the mean of the series.

@demeanby Compute deviations from the mean of the series by group.

@det Determinant of matrix.

@detrend Compute deviations from the trend of the series.

@dexp Exponential probability density function.

@dextreme Extreme value (Type I-minimum) distribution function.

@dfdist F-distribution probability density function.

@dgamma Gamma probability density function.

@dged Generalized error probability density function.

@digamma First derivative of the natural log gamma function.

@diwish Inverse Wishart probability density function.

@dlaplace Laplace probability density function.

dlog Difference functions for natural logarithm of a series.

@dlogistic Logistic probability density function.

@dlognorm Log normal probability density function.

@dmvnorm Multivariate normal probability density function.

@dnegbin Negative binomial probability function.

@dnorm Standard normal probability density function.

@dpareto Pareto probability density function.

@dpoisson Poisson probability function.

@dtoo Observation number in the workfile associated with a date string.

@dunif Uniform probability density function.

@duplic Duplication matrix.

@duplicinv Inverse duplication matrix.

@dupselem Identifier for the observation within the set of duplicates.

@dupsid Identifier for the duplicates group for the observation.

@dupsobs Number of observations in the corresponding duplicates group.

@during Indicator of whether an observation is between two dates

@dweib Weibull probability density function.

@dwish Wishart probably density function.