Re: The Dimensions don't match

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Thu Aug 29 2013 - 15:20:18 MDT

Replace what you have with the attached. Just the section
from 'var_new = ..." till the end of your
double do loop

Good Luck

>
>
> 2013/8/29 Dennis Shea <shea@ucar.edu>
>
>> I can guess at the reason for the message in
>>
>> index = mod( get1Dindex(var,max_var),12 ) + 1 ; line 59
>>
>> My guess is that for each previous lat/lon iteration, there was only
>> one value returned: IE, dimsizes(index)=1
>> Your code implicitly assumes this.
>>
>> However, the failure occurred when there were *two or more* location in
>> variable 'var' that matched 'max_var'.
>>
>> NCL is a 'strongly typed language', by default, it will not
>> allow a variable of (say) size 2 to overwrite a variable of size 1.
>> That is what the "fatal:Dimension sizes on right hand side
>>
>> of assignment do not match dimension sizes of left hand side"
>> message means.
>>
>> In the above 'index' is the left hand side and is size 1,
>> the return from right hand side was (say) size 2.
>>
>> There are two solutions:
>> (a) at the end of each loop use: delete(index)
>> (b) if you have 6.1.2, you can use the "new reassignment operator"
>> http://www.ncl.ucar.edu/**current_release.shtml<http://www.ncl.ucar.edu/current_release.shtml>
>>
>> index := mod( get1Dindex(var,max_var),12 ) + 1
>>
>> ================
>>
>> However, in your code, you are assuming only one value matched. Hence,
>> you must make a decision.
>>
>> solution (a)
>> index = mod( get1Dindex(var,max_var),12 ) + 1
>> tempo(lat,lon) = index(0) ; always pick the 1st max
>>
>> delete(index)
>>
>> solution (b)
>> index := mod( get1Dindex(var,max_var),12 ) + 1
>> tempo(lat,lon) = index(0) ; always pick the 1st max
>>
>> Good luck
>>
>>
>>
>> On 8/28/13 8:26 PM, Guilherme Martins wrote:
>>
>>> Hi all,
>>>
>>> When I run my script (in attach) I get
>>>
>>> fatal:Dimension sizes on right hand side of assignment do not match
>>> dimension sizes of left hand side
>>> fatal:["Execute.c":8128]:**Execute: Error occurred at or near line 1465
>>> in
>>> file $NCARG_ROOT/lib/ncarg/**nclscripts/csm/contributed.ncl
>>>
>>> fatal:["Execute.c":8128]:**Execute: Error occurred at or near line 59 in
>>> file
>>> max.ncl
>>>
>>> The script begin run, but later some points lat/lon it stop and return
>>> error.
>>>
>>> It's very strange because I use the same script to other dataset and I
>>> don't have problems.
>>>
>>> Could anyone help me?
>>>
>>> My files are in attach.
>>>
>>> Thanks,
>>>
>>> Guilherme
>>>
>>> Ncdump -h result:
>>>
>>> netcdf cmap {
>>> dimensions:
>>> lon = 144 ;
>>> lat = 72 ;
>>> time = UNLIMITED ; // (24 currently)
>>> variables:
>>> float lon(lon) ;
>>> lon:standard_name = "longitude" ;
>>> lon:long_name = "Longitude" ;
>>> lon:units = "degrees_east" ;
>>> lon:axis = "X" ;
>>> float lat(lat) ;
>>> lat:standard_name = "latitude" ;
>>> lat:long_name = "Latitude" ;
>>> lat:units = "degrees_north" ;
>>> lat:axis = "Y" ;
>>> double time(time) ;
>>> time:standard_name = "time" ;
>>> time:long_name = "Time" ;
>>> time:units = "hours since 1-01-01 00:00:00" ;
>>> time:calendar = "standard" ;
>>> float precip(time, lat, lon) ;
>>> precip:long_name = "Average Monthly Rate of Precipitation" ;
>>> precip:units = "mm/day" ;
>>> precip:_FillValue = -9.96921e+36f ;
>>> precip:missing_value = -9.96921e+36f ;
>>> precip:actual_range = 0.f, 56.54f ;
>>> precip:precision = 2s ;
>>> precip:least_significant_digit = 2s ;
>>> precip:var_desc = "Precipitation" ;
>>> precip:dataset = "CPC Merged Analysis of Precipitation Enhanced" ;
>>> precip:level_desc = "Surface" ;
>>> precip:statistic = "Mean" ;
>>> precip:parent_stat = "Mean" ;
>>>
>>> // global attributes:
>>> :CDI = "Climate Data Interface version 1.6.1 (
>>> http://code.zmaw.de/projects/**cdi <http://code.zmaw.de/projects/cdi>)" ;
>>> :Conventions = "COARDS" ;
>>> :history = "Wed Aug 28 23:11:55 2013: cdo selyear,1980/1981
>>> cmap.mensal.1979.2010.nc cmap.nc\n",
>>> "Wed Aug 28 21:43:40 2013: cdo selyear,1979/2010
>>> cmap_precip.mon.mean_enhanced_**montlhy.nc<http://cmap_precip.mon.mean_enhanced_montlhy.nc>
>>> cmap.nc\n",
>>> "Created by CAS 09/2012 using version 1201 from NCEP" ;
>>> :source = "ftp ftp.cpc.ncep.noaa.gov precip/cmap/monthly" ;
>>> :title = "CPC Merged Analysis of Precipitation (includes NCEP
>>> Reanalysis)"
>>> ;
>>> :platform = "Analyses" ;
>>> :documentation = "http://www.esrl.noaa.gov/psd/**
>>> data/gridded/data.cmap.html<http://www.esrl.noaa.gov/psd/data/gridded/data.cmap.html>
>>> "
>>> ;
>>> :version = "V1201" ;
>>> :references = "http://www.esrl.noaa.gov/psd/**data/gridded/data.cmap.html<http://www.esrl.noaa.gov/psd/data/gridded/data.cmap.html>"
>>> ;
>>> :CDO = "Climate Data Operators version 1.6.1 (
>>> http://code.zmaw.de/projects/**cdo <http://code.zmaw.de/projects/cdo>)" ;
>>>
>>>
>>>
>>>
>>> ______________________________**_________________
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>>>
>
>

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Received on Thu Aug 29 15:20:12 2013

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