You should also store the flags and corresponding original strings, either as attributes or as a separate array of chars and associated flag 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. For example, if you have strings of "Ozone", "CO2", "Methane", replace these with, say, -999, -998, and -997 respectively. Then store the data as a fixed-length 2-D char array.Įncode your string data with numeric values. These will unfortunately have to be fixed length strings, which would need to be long enough to retain your necessary precision. 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(.). 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. ĭisp('Skipping variable with more than 3 dimensions') MATLAB provides numerous string functions creating, combining, parsing, comparing and manipulating strings.įollowing table provides brief description of the string functions in MATLAB − Functionįunctions for storing text in character arrays, combine character arrays, etc.It's not exactly what you asked, but here's a script that writes all the. The cellstr function converts a character array into a cell array of strings. Each element of a cell array can contain data of a. Cell arrays provide a more flexible way to store strings of varying length. A cell array in MATLAB is a data structure that can hold multiple types of data in a single array. Figure 3.5 Result of cell array b(2,2) 4.2 Figure 3.7 Uneven Columns in a Table. MATLAB cell array can hold different sizes and types of data in an array. There are several ways to create a structure, and MATLAB. However, a more efficient way to combine the strings is to convert the resulting array into a cell array. We have used blank spaces at the end of strings to equalize their length. Surgeon,R N Tagore Cardiology Research Centerįrom our previous discussion, it is clear that combining strings with different lengths could be a pain as all strings in the array has to be of the same length. Surgeon, R N Tagore Cardiology Research Center There are two ways to refer to the elements of a cell array. Cell arrays commonly contain pieces of text, combinations of text and numbers from spreadsheets or text files, or numeric arrays of different sizes. Profile = strcat(name, ', ', position, ', ', worksAt) A cell array is a data type with indexed data containers called cells. WorksAt = 'R N Tagore Cardiology Research Center' If the strings are of different lengths, char pads the shorter strings with trailing blanks so that each row has the same number of characters.Ĭreate a script file and type the following code into it − For strings with different lengths, you should pad with space characters as needed. Please note that in this method each row must contain the same number of characters. Use the ColumnFormat property to specify the format for data that is a numeric, logical, cell, or string array, or a cell array of character vectors. Using the MATLAB concatenation operator and separating each row with a semicolon ( ). You can combine strings vertically in either of the following ways − Simplest way of creating a rectangular character array is by concatenating two or more one-dimensional character arrays, either vertically or horizontally as required. This is achieved by creating rectangular character arrays. We need to store more dimensional textual data in our program. The strings we have discussed so far are one-dimensional character arrays however, we need to store more than that. Str_16bit = uint16(my_string) % 16-bit ascii values Str_ascii = uint8(my_string) % 8-bit ascii values
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