mirror of
https://github.com/rjNemo/underscore
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- Add Tap: for side effects/debugging in pipelines - Add Transpose: flip matrix rows and columns - Add Unzip: split tuple slice into two slices - Add ParallelReduce: parallel reduction (experimental) - Add Replicate: create n copies of a value Comprehensive tests included for all functions. Resolves Issues 21, 22, 23, 24, 25 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
25 lines
614 B
Go
25 lines
614 B
Go
package underscore
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// Transpose flips a matrix over its diagonal, swapping rows and columns.
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// Returns an empty slice if the input is empty.
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// Assumes all rows have the same length (uses the length of the first row).
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//
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// Example: Transpose([[1,2,3], [4,5,6]]) → [[1,4], [2,5], [3,6]]
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func Transpose[T any](matrix [][]T) [][]T {
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if len(matrix) == 0 || len(matrix[0]) == 0 {
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return [][]T{}
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}
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rows := len(matrix)
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cols := len(matrix[0])
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result := make([][]T, cols)
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for i := range result {
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result[i] = make([]T, rows)
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for j := range matrix {
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result[i][j] = matrix[j][i]
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}
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}
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return result
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}
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