![]() ![]() For 3D plotting of curves, you should use the plot3 command. Plotting based on row/column names, rather than row/column indices is harder.īy the way, plot(x,y,z) is not a valid command. Plot3(i, j, data(i,j)) % Plot the data at 'c1' and 'r3' locationīut again, this is also a somewhat convoluted way of working with numerical data. ' operator, not '), or forcing them to be column vectors with the ‘ (:)’ notation. Create column vectors from them to create ‘A’ by either doing a simple transpose (use the. J = find(strcmp(colNames, 'c1')) % Column index Your data as you posted them are row vectors. For example, M = ĭata = rand(3,3) % A random matrix with 3 rows and 3 columns.Īnd if you want to plot a data point given, say, 'c1' and 'r3', you could code i = find(strcmp(rowNames, 'r3')) % Row index Free Bonus: Click here to get access to a free NumPy Resources. ![]() ![]() Acreatesrandomnetwork(100,5) Usum(A) Say the 1st and 50th number in U are the largest. Renaming columns to a more recognizable set of labels Skipping unnecessary rows in a CSV file. If not, you can use cell arrays to represent row/column names, but indexing would be harder. I have a random network and I would like to make the rows which have the largest sum equal to zero. You can use delimiterIn with any of the input arguments in the. A importdata ( ,delimiterIn) interprets delimiterIn as the column separator in ASCII file, filename, or the clipboard data. A importdata ('-pastespecial') loads data from the system clipboard rather than from a file. varTypes specifies the data types of the variables. A importdata (filename) loads data into array A. sz is a two-element numeric array, where sz (1) specifies the number of rows and sz (2) specifies the number of variables. If you have the Statistics Toolbox, you can use the dataset objects to represent data with column and row names. T table ('Size',sz,'VariableTypes',varTypes) creates a table and preallocates space for the variables that have data types you specify. ![]()
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