With MATLAB provided CDFLIB running on MATLAB 2017a (9.2.0) you get > cdfinfo('mvn_lpw_l2_lpnt_20180814_v03_r02.cdf')

The version of cdflib that comes with MATLAB does not support some of the features used in MAVEN files. The Installation instructions are fairly straightforward and there is little that can be added to it. This version of the library is provided for free and can be downloaded directly from SPDF. ĭisp('Skipping variable with more than 3 dimensions') It's not exactly what you asked, but here's a script that writes all the.To read the data from NASA Space Physics Data Facility (SPDF) you are encouraged to use the CDF handling library from SPDF. 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. 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.

Matlab run cdf files