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Matlab import csv missing nanan11/16/2023 I have imported data from a csv file (John Hopkins). It is a common pattern to combine the previous two lines of code into a single line. Why CSV date column is imported as NaN Follow 68 views (last 30 days) Show older comments Clement on Vote 0 Link Commented: Walter Roberson on Accepted Answer: Walter Roberson Respected colleagues. A 1 4 2 5 3 6 sz size (A) X NaN (sz) X 3×2 NaN NaN NaN NaN NaN NaN. The code that I wrote works fine for all parameters except the second column (second parameter), which its value are date and time, my code put NaN for all values of this parameter. Create an array of NaN values that is the same size as an existing array. A quick introduction on how to read/write XLS/XLSX files. To read text data into table variables that are string arrays, use the 'TextType' name-value argument. Reading and writing text files with tabular data: CSV-like files. Import the data in messy.csv using the readtable function. But you can also use the readtable function to read the data from a file and import it as a table. If one value is empty, I need to put a NaN and then zero instead of that. You can import the data into the MATLAB workspace from the Import Tool. I need to read each file and separate parameters and its corresponding values. ![]() When I load the file generated by my program into excel, it looks good and exactly how it should. csv file, there is 49 parameters name and in all other rows there are 49 values for those parameters. So I'm trying to import a timeseries from a csv file (dim roughly 210 x 175,000 corresponds to timepoints x voxels, file size roughly 572 MiB). I cannot first change the blanks to 99999 because excel crashes. ![]() If I use csvread to import the data Matlab changes the banks to zeros. Many of the cells are blanks (not zeros). ![]() I have a folder which contains a number of. I have a file (created in excel) with >100k rows and 22 columns.
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