### Alphabetical Listing of GrADS Functions

`aave()      `Calculates an areal average over an X-Y region (latitude-weighted)
`abs()       `Returns the absolute value
`acos()      `Calculates the inverse cosine
`amax()      `Returns the maximum grid value over an X-Y region
`amaxlocx()  `Returns the the X location of the maximum grid value over an X-Y region
`amaxlocy()  `Returns the the Y location of the maximum grid value over an X-Y region
`amean()     `Calculates an areal average over an X-Y region (not latitude-weighted)
`amin()      `Returns the minimum grid value over an X-Y region
`aminlocx()  `Returns the the X location of the minimum grid value over an X-Y region
`aminlocy()  `Returns the the Y location of the minimum grid value over an X-Y region
`asin()      `Calculates the inverse sine
`asum()      `Calculates the sum over an X-Y region (grid weighted)
`asumg()     `Calculates the sum over an X-Y region (not grid weighted)
`atot()      `Calculates the sum over an X-Y region (grid and latitude weighted)
`atan2()     `Calculates the inverse tangent
`ave()       `Calculates an average over any dimension
`cdiff()     `Performs a centered difference operation
`coll2gr()   `Creates a grid from a collection of station data
`const()     `Changes missing or non-missing values
`cos()       `Calculates the cosine
`eloop()     `Reconstructs an E-varying result after doing calculations with the ensemble dimension fixed
`exp()       `Calculates the exponential
`fndlvl()    `Finds the vertical level at which a given value occurs in a variable
`gint()      `General integral
`gr2stn()    `Grid-to-station interpolator
`gsfallow()  `Enables the dynamic loading of script functions
`gsfpath()   `Specifies the private path directory list where script functions are located
`hcurl()     `Calculates the vertical component of the curl
`hdivg()     `Calculates the horizontal divergence using finite differencing
`if()        `Performs an if-then-else expression evaluation
`log()       `Calculates the natural logarithm
`log10()     `Calculates the logarithm base 10
`lterp()     `Performs bi-linear interpolation between two grids
`mag()       `Calculates the wind speed given u,v components
`maskout()   `Sets certain data values to missing
`max()       `Returns the maximum value over a given grid dimension
`maxloc()    `Returns the grid location of the maximum value
`mean()      `Calculates an average over any dimension (not latitude weighted)
`min()       `Returns the minimum value over a given grid dimension
`minloc()    `Returns grid location of the minimum value
`oabin()     `Bins station observations into grid cells
`oacres()    `Returns a gridded result that represents station data
`pow()       `Raises the values of `arg1` to the power of `arg2`
`s2g1d()     `Converts a station timeseries to a 1D grid
`scorr()     `Calculates the spatial correlation over an X-Y domain
`sin()       `Calculates the sine
`skip()      `Sets alternating data values to missing
`smth9()     `Performs a 9 point smoothing operation on gridded data
`sqrt()      `Calculates the square root
`sregr()     `Calculates the linear least-squares regression over an X-Y domain
`stnave()    `Calculates a time average of station data
`stnmin()    `Returns the minimum value over a time series of station data
`stnmax()    `Returns the maximum value over a time series of station data
`sum()       `Calculates the sum over any dimension (grid weighted)
`sumg()      `Calculates the sum over any dimension (not grid weighted)
`tan()       `Calculates the tangent
`tcorr()     `Produces a spatial map of temporal correlation coefficients
`tloop()     `Reconstructs a time series after doing calculations at fixed times
`tmave()     `Calculates a time averag while applying a mask
`tregr()     `Calculates the least-squares regression over the time domain
`tvrh2q()    `Calculates specific humidity given virtual temperature and relative humidity
`tvrh2t()    `Calculates temperature given virtual temperature and relative humidity
`vint()      `Calculates a mass-weighted vertical integral in mb pressure coordinates