## How do I read a CSV file in MATLAB?

M = csvread( filename ) reads a comma-separated value (CSV) formatted file into array M . The file must contain only numeric values. M = csvread( filename , R1 , C1 ) reads data from the file starting at row offset R1 and column offset C1 . For example, the offsets R1=0 , C1=0 specify the first value in the file.

**How do I plot a graph in CSV?**

How to plot CSV data using Matplotlib and Pandas in Python?

- Set the figure size and adjust the padding between and around the subplots.
- Make a list of headers of the . CSV file.
- Read the CSV file with headers.
- Set the index and plot the dataframe.
- To display the figure, use show() method.

**How read data from Excel in MATLAB?**

Import Spreadsheet Data Using the Import Tool xls as a table in MATLAB. Open the file using the Import Tool and select options such as the range of data and the output type. Then, click the Import Selection button to import the data into the MATLAB workspace.

### How do I use Matplotlib to csv file?

Plot data from CSV file with Matplotlib

- Make a list of columns that have to be extracted.
- Use read_csv() method to extract the CSV file data into a data frame.
- Print the exracted data.
- Plot the data frame using plot() method.
- To display the figure, use show() method.

**How do I import data into Matplotlib?**

Approach of the program:

- Import required libraries, matplotlib library for visualization and importing csv library for reading CSV data.
- Open the file using open( ) function with ‘r’ mode (read-only) from CSV library and read the file using csv.
- Read each line in the file using for loop.

**How do I plot data from Excel to MATLAB?**

Direct link to this answer

- You can simply read data in an Excel file using the readtable function.
- Then, read the column data as X and Y variables into Matlab. ( Use the column header names in the Excel file to extract values. Please see the example below)
- Use the plot function to create a plot.

## How read data from Excel to MATLAB?

**How do you use FFT in octave?**

The FFT is calculated along the first non-singleton dimension of the array. Thus if x is a matrix, fft ( x ) computes the FFT for each column of x . If called with two arguments, n is expected to be an integer specifying the number of elements of x to use, or an empty matrix to specify that its value should be ignored.