6/1/2023 0 Comments Matlab run cdf files![]() ĭisp('Skipping variable with more than 3 dimensions') It's not exactly what you asked, but here's a script that writes all the. AFAIK, NetCDF3 and NetCDF4 formats do not have anything akin to Matlab's cell array, which can hold different types of data in each cell. Read the data in a variable into the MATLAB workspace. Neither, unfortunately, does Matlab currently (1/18) support the ability to read and write NetCDF4's variable-length strings (even though it has recently added a string datatype).Ĭonvert all numeric data to strings with sprintf(.). To read the data from NASA Space Physics Data Facility (SPDF) you are encouraged to use the CDF handling library from SPDF. The first variable contains CDF Epoch time values. To use these functions, you must prefix the function name with the package name, cdflib. data cdfread ( example. In most cases, the syntax of a MATLAB function is similar to the syntax of the corresponding CDF library function. Read All Data from CDF File Use the cdfread function to read all of the data in the CDF file. cdfId cdflib.create (filename) Description cdfId cdflib.create (filename) creates a new CDF file with the name contained in filename. The MATLAB functions correspond to functions in the CDF library new Standard Interface. This version of the library is provided for free and can be downloaded directly from SPDF. Documentation about CDF is available at the CDF website. The Installation instructions are fairly straightforward and there is little that can be added to it. The low-level interface returns these as double values. ![]() These will unfortunately have to be fixed length strings, which would need to be long enough to retain your necessary precision.ĭatatime cdflib.getVarRecordData (cdfid,0,0) datatime 6.3146e+13. Then store the data as a fixed-length 2-D char array.Įncode your string data with numeric values. (Obviously, choose numeric values that cannot occur in your actual data.) This is similar to how you need to encode nan's, flagged by the attribute _FillValue.įor example, if you have strings of "Ozone", "CO2", "Methane", replace these with, say, -999, -998, and -997 respectively. You should also store the flags and corresponding original strings, either as attributes or as a separate array of chars and associated flag values. To use the MATLAB NetCDF functions effectively, you should be familiar with the information about the NetCDF C Interface.
0 Comments
Leave a Reply. |