convolve array in r

To convolve an array in R, we can use the convolve() function from the base package stats.

The general syntax of convolve() function is as follows:

convolve(x, y, type = c("open", "closed"))
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Where:

• x and y are the input arrays that need to be convolved.
• type specifies the type of convolution. Default is "open". This argument can take two values "open" or "closed". "open" indicates that no correction for unequal edges should be applied, and "closed" indicates that the convolution should be corrected for unequal edges.

Here's an example:

# generating input arrays
x <- c(1, 2, 3, 4) 
y <- c(3, 2, 1)

# convolving arrays
conv_res <- convolve(x, y)

# print results
print(conv_res) # [1] 3 8 14 20 11  4
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The output above shows the result of convolution of input arrays x and y. The result is a vector of length (length(x) + length(y) - 1).