Note to others: Do NOT use eval to solve trivial tasks like this that can be easily avoided using simpler, more efficient code. If you spend a few hours reading those links and still have any question, please ask. If you are not sure why, then read all of the linked threads in my tutorial: the more you understand about the MATLAB JIT engine, the more you will understand why both creating and accessing are equally bad. Regardless of what tool or method, whether creating or accessing, all of them will make code slow, complex, and buggy. This is simply inherenet in how the JIT engine works. The problems of eval, evalin, assignin, load (without an output argument), etc are not specific to just creating variables, but also to accessing them. "I thought that here, eval is not used to create a set of data, as mentioned in the documentation." mat files into output varaibles and avoid the whole problem. In which case it is trivial to load those. "that the author of the question has got some mat-files with differently named data" This is how I ended up storing the onsets for the existing false_onsets variables using a structure: if ~isempty(listen_false_index)įalse_onsets_lis (1,ii)=onsets (1,baseline_false_index(ll)) įalse_duration_base=zeros(1,length(baseline_false_index)) As I told you, not all participants have all false_onsets variables. For a full list of properties and descriptions for each type, see the associated object property page (for example, Figure Properties, Axes. Each type of object supports a different set of properties. I actually created the false_onsets variables with a loop for each participant. Property and value pairs, specified as Name1Value1.,NameNValueN, where Name is the property name and Value is the corresponding value. Here we discuss an introduction to Matlab Concatenate, syntax, examples with code and output.Thanks Stephen for providing this solution and warning against the use of eval function. Both horizontal and vertical concatenation is possible in MATLAB. ‘cat’ function is used to concatenate 2 matrices. ‘strcat’ function is used in MATLAB to concatenate strings or arrays. As we can see in the output, we have obtained vertically concatenated matrices. For horizontal concatenation, the first argument will be ‘2’. For vertical concatenation, first argument will be ‘1’. For concatenation, the first argument can take 2 values. Passing the input matrices to the ‘cat’ function. In this example, we will take two 3×3 matrices will see how the ‘cat’ functions works.Įxplanation: First, Declaring the first input matrix. As we can see in the output, we have obtained a concatenated string of cell arrays with an additional string in the end of each element. The string ‘, Capital-Country’ is added to every element of the concatenated array. strcat will concatenate the corresponding elements of 2 arrays. Passing the input character arrays to the ‘strcat’ function. Declaring the second input character array. Pass the input cell arrays to the strcat functionĬountry = Ĭ = strcat(Capital, Country, ', Capital-Country')Įxplanation: First, Declaring the first input character array. For this example, we will follow steps:Ģ. In this example, we will take cell arrays of characters will see how the strcat functions works. As we can see in the output, we have obtained a concatenated string of character vectors. Please note that, in 2 nd and 3 rd input strings, we have passed an extra space in the beginning of the character. Passing the input character vectors to the ‘strcat’ function. Declaring the third input character vector. Declaring the second input character vector. Input these character vectors in strcat functionĮxplanation: First, Declaring the first input character vector. Pass the required input character vectorsĢ. For our first example, we will follow the following steps:ġ. In this example, we will learn how to concatenate character vectors. Let us now understand the code of strcat function in MATLAB using different examples: Example #1 C = cat (dim, x, y) is used to concatenate matrix ‘x’ and matrix ‘y’ along the dimension ‘dim’. The set of field names is not the same between the two, so they cannot be. One is a struct with one field called 'DataBatteryPower', and one is a struct with one field called 'DataLoadPower'. Below is the syntax for Matlab Concatenate:Įxplanation: C = strcat (st1, st2, st3, … stN) is used to concatenate the input strings horizontally. S load ('LoadPower280.mat') S struct with fields: DataLoadPower: 1×1 struct These are what get stored as elements of C in the code.
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