Repository 'ml_visualization_ex'
hg clone https://toolshed.g2.bx.psu.edu/repos/bgruening/ml_visualization_ex

Changeset 7:05143043ca13 (2020-10-02)
Previous changeset 6:222c02df5d55 (2020-03-11) Next changeset 8:6cf6f27547cb (2021-04-13)
Commit message:
"planemo upload for repository https://github.com/bgruening/galaxytools/tree/master/tools/sklearn commit 2afb24f3c81d625312186750a714d702363012b5"
added:
pca.py
test-data/pca_classical_header_names_output.dat
test-data/pca_classical_output.dat
test-data/pca_incremental_header_names_output.dat
test-data/pca_incremental_output.dat
test-data/pca_input.dat
test-data/pca_input_with_headers.dat
b
diff -r 222c02df5d55 -r 05143043ca13 pca.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/pca.py Fri Oct 02 08:55:27 2020 +0000
[
@@ -0,0 +1,99 @@
+import argparse
+import numpy as np
+from sklearn.decomposition import PCA, IncrementalPCA, KernelPCA
+from galaxy_ml.utils import read_columns
+
+def main():
+    parser = argparse.ArgumentParser(description='RDKit screen')
+    parser.add_argument('-i', '--infile',
+                        help="Input file")
+    parser.add_argument('--header', action='store_true', help="Include the header row or skip it")
+    parser.add_argument('-c', '--columns', type=str.lower, default='all', choices=['by_index_number', 'all_but_by_index_number',\
+                        'by_header_name', 'all_but_by_header_name', 'all_columns'],
+                        help="Choose to select all columns, or exclude/include some")
+    parser.add_argument('-ci', '--column_indices', type=str.lower,
+                        help="Choose to select all columns, or exclude/include some")
+    parser.add_argument('-n', '--number', nargs='?', type=int, default=None,\
+                        help="Number of components to keep. If not set, all components are kept")
+    parser.add_argument('--whiten', action='store_true', help="Whiten the components")
+    parser.add_argument('-t', '--pca_type', type=str.lower, default='classical', choices=['classical', 'incremental', 'kernel'],
+                        help="Choose which flavour of PCA to use")
+    parser.add_argument('-s', '--svd_solver', type=str.lower, default='auto', choices=['auto', 'full', 'arpack', 'randomized'],
+                        help="Choose the type of svd solver.")
+    parser.add_argument('-b', '--batch_size', nargs='?', type=int, default=None,\
+                        help="The number of samples to use for each batch")
+    parser.add_argument('-k', '--kernel', type=str.lower, default='linear',\
+                        choices=['linear', 'poly', 'rbf', 'sigmoid', 'cosine', 'precomputed'],
+                        help="Choose the type of kernel.")
+    parser.add_argument('-g', '--gamma', nargs='?', type=float, default=None,
+                        help='Kernel coefficient for rbf, poly and sigmoid kernels. Ignored by other kernels')
+    parser.add_argument('-tol', '--tolerance', type=float, default=0.0,
+                        help='Convergence tolerance for arpack. If 0, optimal value will be chosen by arpack')
+    parser.add_argument('-mi', '--max_iter', nargs='?', type=int, default=None,\
+                        help="Maximum number of iterations for arpack")
+    parser.add_argument('-d', '--degree', type=int, default=3,\
+                        help="Degree for poly kernels. Ignored by other kernels")
+    parser.add_argument('-cf', '--coef0', type=float, default=1.0,
+                        help='Independent term in poly and sigmoid kernels')
+    parser.add_argument('-e', '--eigen_solver', type=str.lower, default='auto', choices=['auto', 'dense', 'arpack'],
+                        help="Choose the type of eigen solver.")
+    parser.add_argument('-o', '--outfile',
+                        help="Base name for output file (no extension).")
+    args = parser.parse_args()
+
+    usecols = None
+    cols = []
+    pca_params = {}
+
+    if args.columns == 'by_index_number' or args.columns == 'all_but_by_index_number':
+        usecols = [int(i) for i in args.column_indices.split(',')]
+    elif args.columns == 'by_header_name' or args.columns == 'all_but_by_header_name':
+        usecols = args.column_indices
+
+    header = 'infer' if args.header else None
+
+    pca_input = read_columns(
+        f=args.infile,
+        c=usecols,
+        c_option=args.columns,
+        sep='\t',
+        header=header,
+        parse_dates=True,
+        encoding=None,
+        index_col=None)
+
+    pca_params.update({'n_components': args.number})
+
+    if args.pca_type == 'classical':
+        pca_params.update({'svd_solver': args.svd_solver, 'whiten': args.whiten})
+        if args.svd_solver == 'arpack':
+            pca_params.update({'tol': args.tolerance})
+        pca = PCA()
+
+    elif args.pca_type == 'incremental':
+        pca_params.update({'batch_size': args.batch_size, 'whiten': args.whiten})
+        pca = IncrementalPCA()
+
+    elif args.pca_type == 'kernel':
+        pca_params.update({'kernel': args.kernel, 'eigen_solver': args.eigen_solver, 'gamma': args.gamma})
+
+        if args.kernel == 'poly':
+            pca_params.update({'degree': args.degree, 'coef0': args.coef0})
+        elif args.kernel == 'sigmoid':
+            pca_params.update({'coef0': args.coef0})
+        elif args.kernel == 'precomputed':
+            pca_input = np.dot(pca_input, pca_input.T)
+
+        if args.eigen_solver == 'arpack':
+            pca_params.update({'tol': args.tolerance, 'max_iter': args.max_iter})
+
+        pca = KernelPCA()
+
+    print(pca_params)
+    pca.set_params(**pca_params)
+    pca_output = pca.fit_transform(pca_input)
+    np.savetxt(fname=args.outfile, X=pca_output, fmt='%.4f', delimiter='\t')
+
+
+if __name__ == "__main__":
+    main()
b
diff -r 222c02df5d55 -r 05143043ca13 test-data/pca_classical_header_names_output.dat
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/pca_classical_header_names_output.dat Fri Oct 02 08:55:27 2020 +0000
b
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b
diff -r 222c02df5d55 -r 05143043ca13 test-data/pca_classical_output.dat
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/pca_classical_output.dat Fri Oct 02 08:55:27 2020 +0000
b
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b
diff -r 222c02df5d55 -r 05143043ca13 test-data/pca_incremental_header_names_output.dat
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/pca_incremental_header_names_output.dat Fri Oct 02 08:55:27 2020 +0000
b
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b
diff -r 222c02df5d55 -r 05143043ca13 test-data/pca_incremental_output.dat
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/pca_incremental_output.dat Fri Oct 02 08:55:27 2020 +0000
b
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b
diff -r 222c02df5d55 -r 05143043ca13 test-data/pca_input.dat
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/pca_input.dat Fri Oct 02 08:55:27 2020 +0000
b
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b
diff -r 222c02df5d55 -r 05143043ca13 test-data/pca_input_with_headers.dat
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/pca_input_with_headers.dat Fri Oct 02 08:55:27 2020 +0000
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