Which MATLAB function is commonly used to import data from external files into MATLAB?
a) readtable
b) importdata
c) load
d) csvread
What is the purpose of the "find" function in MATLAB?
a) To locate and return indices of nonzero elements in an array.
b) To search for specific strings in a cell array.
c) To find the maximum value in an array.
d) To identify and remove outliers from a dataset.
In MATLAB, which function is used to calculate the correlation coefficient between two datasets?
e) corrcoef
f) cov
g) corr
h) crosscorr
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What is the purpose of the "histogram" function in MATLAB?
a) To calculate descriptive statistics of a dataset.
b) To create a graphical representation of the distribution of a dataset.
c) To compute the cumulative distribution function of a dataset.
d) To perform hypothesis testing on a dataset.
Which MATLAB function is used to perform linear regression analysis?
e) polyfit
f) regress
g) lasso
h) pca
Which MATLAB function is used to perform principal component analysis (PCA)?
i) eig
j) pca
k) svd
l) eigenvector
What does the "boxplot" function in MATLAB display?
m) The minimum, maximum, and mean values of a dataset.
n) The quartiles and outliers of a dataset.
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c) The frequency distribution of a dataset.
d) The scatter plot of two variables.
Which MATLAB function is used to calculate the Fast Fourier Transform (FFT) of a signal?
a) fft
b) dft
c) ifft
d) fftshift
In MATLAB, which function is used to perform image processing tasks such as filtering and edge detection?
e) imread
f) imwrite
g) imfilter
h) imresize
What is the purpose of the "heatmap" function in MATLAB?
i) To create a visual representation of data using a color map.
j) To perform hierarchical clustering on a dataset.
k) To plot the heat distribution of a thermal image.
l) To calculate and visualize the density of points in a scatter plot.
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