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<title>GrADS Functions</title>
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<h3>GrADS Functions Sorted by Attribute</h3>
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<font size=+1>Mathematical Operations</font>
<br><code><a href="gradfuncabs.html">abs()</a> </code>Returns the absolute value
<br><code><a href="gradfunccdiff.html">cdiff()</a> </code>Performs a centered difference operation
<br><code><a href="gradfuncexp.html">exp()</a> </code>Calculates the exponential
<br><code><a href="gradfuncgint.html">gint()</a> </code>General integral
<br><code><a href="gradfunclog.html">log()</a> </code>Calculates the natural logarithm
<br><code><a href="gradfunclog10.html">log10()</a> </code>Calculates the logarithm base 10
<br><code><a href="gradfuncpow.html">pow()</a> </code>Raises the values of <code><i>arg1</i></code> to the power of <code><i>arg2</i></code>
<br><code><a href="gradfuncsqrt.html">sqrt()</a> </code>Calculates the square root
<br><code><a href="gradfuncvint.html">vint()</a> </code>Calculates a mass-weighted vertical integral in mb pressure coordinates
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<font size=+1>Trigonometric Functions</font>
<br><code><a href="gradfunccos.html">cos()</a> </code>Calculates the cosine
<br><code><a href="gradfuncacos.html">acos()</a> </code>Calculates the inverse cosine
<br><code><a href="gradfuncsin.html">sin()</a> </code>Calculates the sine
<br><code><a href="gradfuncasin.html">asin()</a> </code>Calculates the inverse sine
<br><code><a href="gradfunctan.html">tan()</a> </code>Calculates the tangent
<br><code><a href="gradfuncatan2.html">atan2()</a> </code>Calculates the inverse tangent
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<font size=+1>Averaging and Summing</font>
<br><code><a href="gradfuncaave.html">aave()</a> </code>Calculates an areal average over an X-Y region (latitude-weighted)
<br><code><a href="gradfuncamean.html">amean()</a> </code>Calculates an areal average over an X-Y region (not latitude-weighted)
<br><code><a href="gradfuncasum.html">asum()</a> </code>Calculates the sum over an X-Y region (grid weighted)
<br><code><a href="gradfuncasumg.html">asumg()</a> </code>Calculates the sum over an X-Y region (not grid weighted)
<br><code><a href="gradfuncatot.html">atot()</a> </code>Calculates the sum over an X-Y region (grid and latitude weighted)
<br><code><a href="gradfuncave.html">ave()</a> </code>Calculates an average over any dimension
<br><code><a href="gradfuncgint.html">gint()</a> </code>General integral
<br><code><a href="gradfuncmean.html">mean()</a> </code>Calculates an average over any dimension (not latitude weighted)
<br><code><a href="gradfuncsum.html">sum()</a> </code>Calculates the sum over any dimension (grid weighted)
<br><code><a href="gradfuncsumg.html">sumg()</a> </code>Calculates the sum over any dimension (not grid weighted)
<br><code><a href="gradfunctmave.html">tmave()</a> </code>Calculates a time averag while applying a mask
<br><code><a href="gradfuncvint.html">vint()</a> </code>Calculates a mass-weighted vertical integral in mb pressure coordinates
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<font size=+1>Correlation and Regression</font>
<br><code><a href="gradfuncscorr.html">scorr()</a> </code>Calculates the spatial correlation over an X-Y domain
<br><code><a href="gradfunctcorr.html">tcorr()</a> </code>Produces a spatial map of temporal correlation coefficients
<br><code><a href="gradfuncsregr.html">sregr()</a> </code>Calculates the linear least-squares regression over an X-Y domain
<br><code><a href="gradfunctregr.html">tregr()</a> </code>Calculates the least-squares regression over the time domain
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<font size=+1>Meteorological Calculations</font>
<br><code><a href="gradfunctvrh2q.html">tvrh2q()</a> </code>Calculates specific humidity given virtual temperature and relative humidity
<br><code><a href="gradfunctvrh2t.html">tvrh2t()</a> </code>Calculates temperature given virtual temperature and relative humidity
<br><code><a href="gradfuncv<int.html">vint()</a> </code>Calculates a mass-weighted vertical integral in mb pressure coordinates
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<font size=+1>Vector Operations</font>
<br><code><a href="gradfunchcurl.html">hcurl()</a> </code>Calculates the vertical component of the curl
<br><code><a href="gradfunchdivg.html">hdivg()</a> </code>Calculates the horizontal divergence using finite differencing
<br><code><a href="gradfuncmag.html">mag()</a> </code>Calculates the wind speed given u,v components
<br><code><a href="gradfuncskip.html">skip()</a> </code>Sets alternating data values to missing
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<font size=+1>Grid Operations</font><br><code><a href="gradfuncamax.html">amax()</a> </code>Returns the maximum grid value over an X-Y region
<br><code><a href="gradfuncamaxlocx.html">amaxlocx()</a> </code>Returns the the X location of the maximum grid value over an X-Y region
<br><code><a href="gradfuncamaxlocy.html">amaxlocy()</a> </code>Returns the the Y location of the maximum grid value over an X-Y region
<br><code><a href="gradfuncamin.html">amin()</a> </code>Returns the minimum grid value over an X-Y region
<br><code><a href="gradfuncaminlocx.html">aminlocx()</a> </code>Returns the the X location of the minimum grid value over an X-Y region
<br><code><a href="gradfuncaminlocy.html">aminlocy()</a> </code>Returns the the Y location of the minimum grid value over an X-Y region
<br><code><a href="gradfuncatot.html">atot()</a> </code>Calculates the sum over an X-Y region (grid and latitude weighted)
<br><code><a href="gradfunccdiff.html">cdiff()</a> </code>Performs a centered difference operation
<br><code><a href="gradfuncfndlvl.html">fndlvl()</a> </code>Finds the vertical level at which a given value occurs in a variable
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<code><a href="gradfunclterp.html">lterp()</a> </code>ßPerforms bi-linear interpolation between two grids <br><code><a href="gradfuncmax.html">max()</a> </code>Returns the maximum value over a given grid dimension
<br><code><a href="gradfuncmaxloc.html">maxloc()</a> </code>Returns the grid location of the maximum value
<br><code><a href="gradfuncmin.html">min()</a> </code>Returns the minimum value over a given grid dimension
<br><code><a href="gradfuncminloc.html">minloc()</a> </code>Returns grid location of the minimum value
<br><code><a href="gradfuncskip.html">skip()</a> </code>Sets alternating data values to missing
<br><code><a href="gradfuncsmth9.html">smth9()</a> </code>Performs a 9 point smoothing operation on gridded data
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<font size=+1>Station Data</font>
<br><code><a href="gradfunccoll2gr.html">coll2gr()</a> </code>Creates a grid from a collection of station data
<br><code><a href="gradfuncgr2stn.html">gr2stn()</a> </code>Grid-to-station interpolator
<br><code><a href="gradfuncoabin.html">oabin()</a> </code>Bins station observations into grid cells
<br><code><a href="gradfuncoacres.html">oacres()</a> </code>Returns a gridded result that represents station data
<br><code><a href="gradfuncs2g1d.html">s2g1d()</a> </code>Converts a station timeseries to a 1D grid
<br><code><a href="gradfuncstnave.html">stnave()</a> </code>Calculates a time average of station data
<br><code><a href="gradfuncstnmin.html">stnmin()</a> </code>Returns the minimum value over a time series of station data
<br><code><a href="gradfuncstnmax.html">stnmax()</a> </code>Returns the maximum value over a time series of station data
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<font size=+1>Special Purpose</font>
<br><code><a href="gradfuncconst.html">const()</a> </code>Changes missing or non-missing values
<br><code><a href="gsf.html">gsfallow()</a> </code>Enables the dynamic loading of script functions
<br><code><a href="gsf.html">gsfpath()</a> </code>Specifies the private path directory list where script functions are located
<br><code><a href="gradfuncmaskout.html">maskout()</a> </code>Sets certain data values to missing
<br><code><a href="gradfunctloop.html">tloop()</a> </code>Reconstructs a time series after doing calculations at fixed times
<br><code><a href="gradfunceloop.html">eloop()</a> </code>Reconstructs an E-varying result after doing calculations with the ensemble dimension fixed
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