Quiz 3 Data Import and Preprocessing in Matlab

What function is commonly used to read CSV files in Matlab?

• csvread

• loadcsv

• readtable

• importdata

Which command is used to load .mat files in Matlab?

• extract

• import

• read

• load

What is the purpose of the 'readtable' function in Matlab?

• To read data from a file into a table format.

• To perform mathematical operations on data.

• To display data in a graphical format.

• To write data from a table to a file.

How can you handle missing data when importing datasets in Matlab?

• Ignore missing data entirely during the import process.

• Replace missing data with zeros using 'zeros' function.

• Use 'importdata' without any special handling for missing values.

• Use 'readtable' with 'rmmissing' or 'fillmissing' for handling missing data.

Which function would you use to convert a cell array to a numeric array?

• array2cell

• num2cell

• cell2mat

• mat2cell

What is the default delimiter for the 'readtable' function?

• ,

• ;

• \t

• |

What function is used to concatenate arrays in Matlab?

• cat

• merge

• combine

• join

How do you remove rows with NaN values from a dataset in Matlab?

• Use the command: dataset = dropna(dataset);

• Use the command: dataset = rmmissing(dataset);

• Use the command: dataset = clean(dataset);

• Use the command: dataset = removeNaN(dataset);

Which function can be used to detect outliers in a dataset?

• Standard deviation function

• Mean function

• isoutlier

• Median function

How do you transpose a matrix in Matlab?

• Use A' or transpose(A) to transpose a matrix A in Matlab.

• Apply A.T to transpose a matrix A in Matlab.

• Call transposeMatrix(A) to transpose a matrix A in Matlab.

• Use A^T to transpose a matrix A in Matlab.