Re: Dimension (TSTEP) of (x) does not have an associated coordinate variable when using dim_max

Use:

xMaxTime = dim_max( x(LAY|:, ROW|:, COL|:,TSTEP|:) )

The {...} are for use in coordinate subscripting.
You are using named dimensions to reorder.

>
>I met the problem with "coordinate variable" when post processing CMAQ
>output.
>
>I want to get the daily maximum of ozone concentration.
>
>My script is below
>
>;************************************************
> x = f->O3 ; (Time, bottom_top, south_north, west_east)
> dims = getfilevardims(f,"O3")
> printVarSummary(x)
> print (dims)
>;************************************************
>; Get daily 1hr maximum
>;************************************************
> xMaxTime = dim_max( x(LAY|:, {ROW|:}, {COL|:},{TSTEP|:}) )
>
>
>
>The output on the screen is
>
>Variable: x
>Type: float
>Total Size: 1784832 bytes
> 446208 values
>Number of Dimensions: 4
>Dimensions and sizes: [TSTEP | 24] x [LAY | 1] x [ROW | 112] x [COL | 166]
>Coordinates:
>Number Of Attributes: 3
> long_name : O3
> units : ppmV
> var_desc : Variable O3
>
>
>Variable: dims
>Type: string
>Total Size: 16 bytes
> 4 values
>Number of Dimensions: 1
>Dimensions and sizes: [4]
>Coordinates:
>(0) TSTEP
>(1) LAY
>(2) ROW
>(3) COL
>fatal:Dimension (TSTEP) of (x) does not have an associated coordinate
>variable
>fatal:Execute: Error occurred at or near line 33
>
>
>
>Any help will be greatly appreciated.
>
>Xiaoming
>
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Received on Thu Jan 11 2007 - 10:03:17 MST