changeset 1:7edbe5ae8b72 draft

"planemo upload for repository https://github.com/galaxyecology/tools-ecology/tree/master/tools/data_manipulation/xarray/ commit f1455c158011dc4aab0fd469cf794be6f4142992"
author ecology
date Fri, 22 May 2020 05:18:55 -0400
parents 965fcab0cd9f
children e8650cdf092f
files README.md test-data/Test1.tabular test-data/Test2.tabular test-data/var_tab_dataset-ibi xarray_tool.py
diffstat 5 files changed, 488 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/README.md	Fri May 22 05:18:55 2020 -0400
@@ -0,0 +1,8 @@
+# Xarray tools for netCDF
+## netCDF metadata information
+
+The first tool `xarray_metadata_info ` uses xarray to provide users with general information about variable names, dimensions
+and attributes.
+Variables that can be extracted and dimensions available are printed in a tabular file.
+
+The tool also print a general information file. It's the result of the xarray method info().
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/Test1.tabular	Fri May 22 05:18:55 2020 -0400
@@ -0,0 +1,146 @@
+	time	depth	longitude	latitude	phy
+0	2002-12-15	0.5057600140571594	-2.0000007	44.0	1.0500183
+1	2003-01-15	0.5057600140571594	-2.0000007	44.0	1.25
+2	2003-02-15	0.5057600140571594	-2.0000007	44.0	1.3000183
+3	2003-03-15	0.5057600140571594	-2.0000007	44.0	6.0599976
+4	2003-04-15	0.5057600140571594	-2.0000007	44.0	2.25
+5	2003-05-15	0.5057600140571594	-2.0000007	44.0	0.6499939
+6	2003-06-15	0.5057600140571594	-2.0000007	44.0	0.42999268
+7	2003-07-15	0.5057600140571594	-2.0000007	44.0	0.42999268
+8	2003-08-15	0.5057600140571594	-2.0000007	44.0	0.480011
+9	2003-09-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+10	2003-10-15	0.5057600140571594	-2.0000007	44.0	0.5
+11	2003-11-15	0.5057600140571594	-2.0000007	44.0	0.9299927
+12	2003-12-15	0.5057600140571594	-2.0000007	44.0	1.3900146
+13	2004-01-15	0.5057600140571594	-2.0000007	44.0	1.7400208
+14	2004-02-15	0.5057600140571594	-2.0000007	44.0	4.5
+15	2004-03-15	0.5057600140571594	-2.0000007	44.0	5.5500183
+16	2004-04-15	0.5057600140571594	-2.0000007	44.0	5.3099976
+17	2004-05-15	0.5057600140571594	-2.0000007	44.0	3.75
+18	2004-06-15	0.5057600140571594	-2.0000007	44.0	0.77001953
+19	2004-07-15	0.5057600140571594	-2.0000007	44.0	0.5
+20	2004-08-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+21	2004-09-15	0.5057600140571594	-2.0000007	44.0	0.4500122
+22	2004-10-15	0.5057600140571594	-2.0000007	44.0	0.480011
+23	2004-11-15	0.5057600140571594	-2.0000007	44.0	0.83999634
+24	2004-12-15	0.5057600140571594	-2.0000007	44.0	1.7400208
+25	2005-01-15	0.5057600140571594	-2.0000007	44.0	1.7700195
+26	2005-02-15	0.5057600140571594	-2.0000007	44.0	1.5500183
+27	2005-03-15	0.5057600140571594	-2.0000007	44.0	7.149994
+28	2005-04-15	0.5057600140571594	-2.0000007	44.0	3.649994
+29	2005-05-15	0.5057600140571594	-2.0000007	44.0	2.5200195
+30	2005-06-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+31	2005-07-15	0.5057600140571594	-2.0000007	44.0	0.6700134
+32	2005-08-15	0.5057600140571594	-2.0000007	44.0	0.4500122
+33	2005-09-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+34	2005-10-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+35	2005-11-15	0.5057600140571594	-2.0000007	44.0	0.6199951
+36	2005-12-15	0.5057600140571594	-2.0000007	44.0	1.1499939
+37	2006-01-15	0.5057600140571594	-2.0000007	44.0	3.5299988
+38	2006-02-15	0.5057600140571594	-2.0000007	44.0	7.1799927
+39	2006-03-15	0.5057600140571594	-2.0000007	44.0	6.5599976
+40	2006-04-15	0.5057600140571594	-2.0000007	44.0	3.8000183
+41	2006-05-15	0.5057600140571594	-2.0000007	44.0	0.95999146
+42	2006-06-15	0.5057600140571594	-2.0000007	44.0	1.5
+43	2006-07-15	0.5057600140571594	-2.0000007	44.0	1.0299988
+44	2006-08-15	0.5057600140571594	-2.0000007	44.0	0.480011
+45	2006-09-15	0.5057600140571594	-2.0000007	44.0	0.49002075
+46	2006-10-15	0.5057600140571594	-2.0000007	44.0	0.480011
+47	2006-11-15	0.5057600140571594	-2.0000007	44.0	0.9299927
+48	2006-12-15	0.5057600140571594	-2.0000007	44.0	1.2099915
+49	2007-01-15	0.5057600140571594	-2.0000007	44.0	1.1499939
+50	2007-02-15	0.5057600140571594	-2.0000007	44.0	1.7000122
+51	2007-03-15	0.5057600140571594	-2.0000007	44.0	5.230011
+52	2007-04-15	0.5057600140571594	-2.0000007	44.0	3.8600159
+53	2007-05-15	0.5057600140571594	-2.0000007	44.0	0.83999634
+54	2007-06-15	0.5057600140571594	-2.0000007	44.0	0.6799927
+55	2007-07-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+56	2007-08-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+57	2007-09-15	0.5057600140571594	-2.0000007	44.0	0.5
+58	2007-10-15	0.5057600140571594	-2.0000007	44.0	0.89001465
+59	2007-11-15	0.5057600140571594	-2.0000007	44.0	2.0299988
+60	2007-12-15	0.5057600140571594	-2.0000007	44.0	1.8399963
+61	2008-01-15	0.5057600140571594	-2.0000007	44.0	1.3399963
+62	2008-02-15	0.5057600140571594	-2.0000007	44.0	3.149994
+63	2008-03-15	0.5057600140571594	-2.0000007	44.0	4.5899963
+64	2008-04-15	0.5057600140571594	-2.0000007	44.0	5.080017
+65	2008-05-15	0.5057600140571594	-2.0000007	44.0	1.0
+66	2008-06-15	0.5057600140571594	-2.0000007	44.0	1.5299988
+67	2008-07-15	0.5057600140571594	-2.0000007	44.0	0.55999756
+68	2008-08-15	0.5057600140571594	-2.0000007	44.0	0.42999268
+69	2008-09-15	0.5057600140571594	-2.0000007	44.0	0.42999268
+70	2008-10-15	0.5057600140571594	-2.0000007	44.0	0.42999268
+71	2008-11-15	0.5057600140571594	-2.0000007	44.0	0.64001465
+72	2008-12-15	0.5057600140571594	-2.0000007	44.0	2.4200134
+73	2009-01-15	0.5057600140571594	-2.0000007	44.0	2.3900146
+74	2009-02-15	0.5057600140571594	-2.0000007	44.0	6.2099915
+75	2009-03-15	0.5057600140571594	-2.0000007	44.0	4.6799927
+76	2009-04-15	0.5057600140571594	-2.0000007	44.0	1.1100159
+77	2009-05-15	0.5057600140571594	-2.0000007	44.0	2.649994
+78	2009-06-15	0.5057600140571594	-2.0000007	44.0	1.4900208
+79	2009-07-15	0.5057600140571594	-2.0000007	44.0	0.5
+80	2009-08-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+81	2009-09-15	0.5057600140571594	-2.0000007	44.0	0.5800171
+82	2009-10-15	0.5057600140571594	-2.0000007	44.0	0.6499939
+83	2009-11-15	0.5057600140571594	-2.0000007	44.0	0.8999939
+84	2009-12-15	0.5057600140571594	-2.0000007	44.0	1.3099976
+85	2010-01-15	0.5057600140571594	-2.0000007	44.0	1.5299988
+86	2010-02-15	0.5057600140571594	-2.0000007	44.0	2.9599915
+87	2010-03-15	0.5057600140571594	-2.0000007	44.0	5.450012
+88	2010-04-15	0.5057600140571594	-2.0000007	44.0	7.5899963
+89	2010-05-15	0.5057600140571594	-2.0000007	44.0	1.8000183
+90	2010-06-15	0.5057600140571594	-2.0000007	44.0	0.480011
+91	2010-07-15	0.5057600140571594	-2.0000007	44.0	0.5
+92	2010-08-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+93	2010-09-15	0.5057600140571594	-2.0000007	44.0	0.49002075
+94	2010-10-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+95	2010-11-15	0.5057600140571594	-2.0000007	44.0	0.9299927
+96	2010-12-15	0.5057600140571594	-2.0000007	44.0	1.1499939
+97	2011-01-15	0.5057600140571594	-2.0000007	44.0	2.4900208
+98	2011-02-15	0.5057600140571594	-2.0000007	44.0	5.1799927
+99	2011-03-15	0.5057600140571594	-2.0000007	44.0	7.029999
+100	2011-04-15	0.5057600140571594	-2.0000007	44.0	2.4900208
+101	2011-05-15	0.5057600140571594	-2.0000007	44.0	0.6499939
+102	2011-06-15	0.5057600140571594	-2.0000007	44.0	0.52001953
+103	2011-07-15	0.5057600140571594	-2.0000007	44.0	0.5
+104	2011-08-15	0.5057600140571594	-2.0000007	44.0	0.75
+105	2011-09-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+106	2011-10-15	0.5057600140571594	-2.0000007	44.0	0.480011
+107	2011-11-15	0.5057600140571594	-2.0000007	44.0	0.730011
+108	2011-12-15	0.5057600140571594	-2.0000007	44.0	1.0299988
+109	2012-01-15	0.5057600140571594	-2.0000007	44.0	3.149994
+110	2012-02-15	0.5057600140571594	-2.0000007	44.0	2.3099976
+111	2012-03-15	0.5057600140571594	-2.0000007	44.0	5.5200195
+112	2012-04-15	0.5057600140571594	-2.0000007	44.0	3.399994
+113	2012-05-15	0.5057600140571594	-2.0000007	44.0	3.7000122
+114	2012-06-15	0.5057600140571594	-2.0000007	44.0	2.5899963
+115	2012-07-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+116	2012-08-15	0.5057600140571594	-2.0000007	44.0	0.4500122
+117	2012-09-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+118	2012-10-15	0.5057600140571594	-2.0000007	44.0	0.61001587
+119	2012-11-15	0.5057600140571594	-2.0000007	44.0	2.0299988
+120	2012-12-15	0.5057600140571594	-2.0000007	44.0	1.4200134
+121	2013-01-15	0.5057600140571594	-2.0000007	44.0	2.2700195
+122	2013-02-15	0.5057600140571594	-2.0000007	44.0	7.0
+123	2013-03-15	0.5057600140571594	-2.0000007	44.0	10.550018
+124	2013-04-15	0.5057600140571594	-2.0000007	44.0	5.8399963
+125	2013-05-15	0.5057600140571594	-2.0000007	44.0	1.2400208
+126	2013-06-15	0.5057600140571594	-2.0000007	44.0	4.1700134
+127	2013-07-15	0.5057600140571594	-2.0000007	44.0	3.2099915
+128	2013-08-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+129	2013-09-15	0.5057600140571594	-2.0000007	44.0	0.480011
+130	2013-10-15	0.5057600140571594	-2.0000007	44.0	0.49002075
+131	2013-11-15	0.5057600140571594	-2.0000007	44.0	0.7799988
+132	2013-12-15	0.5057600140571594	-2.0000007	44.0	1.4500122
+133	2014-01-15	0.5057600140571594	-2.0000007	44.0	0.95999146
+134	2014-02-15	0.5057600140571594	-2.0000007	44.0	1.3900146
+135	2014-03-15	0.5057600140571594	-2.0000007	44.0	5.779999
+136	2014-04-15	0.5057600140571594	-2.0000007	44.0	5.4299927
+137	2014-05-15	0.5057600140571594	-2.0000007	44.0	1.1799927
+138	2014-06-15	0.5057600140571594	-2.0000007	44.0	0.730011
+139	2014-07-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+140	2014-08-15	0.5057600140571594	-2.0000007	44.0	0.45999146
+141	2014-09-15	0.5057600140571594	-2.0000007	44.0	0.5
+142	2014-10-15	0.5057600140571594	-2.0000007	44.0	0.6199951
+143	2014-11-15	0.5057600140571594	-2.0000007	44.0	0.480011
+144	2014-12-15	0.5057600140571594	-2.0000007	44.0	0.55999756
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/Test2.tabular	Fri May 22 05:18:55 2020 -0400
@@ -0,0 +1,25 @@
+	time	depth	latitude	longitude	nh4
+0	2003-12-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	81.27
+1	2003-12-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	78.08
+2	2003-12-15	0.5057600140571594	45.5	-0.9166674017906189	55.149998
+3	2004-01-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	65.2
+4	2004-01-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	64.11
+5	2004-02-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	51.0
+6	2004-02-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	51.32
+7	2004-05-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	54.53
+8	2004-06-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	79.79
+9	2004-06-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	61.52
+10	2004-07-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	99.159996
+11	2004-07-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	77.93
+12	2004-08-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	110.149994
+13	2004-08-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	86.759995
+14	2004-09-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	112.369995
+15	2004-09-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	91.979996
+16	2004-10-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	109.63
+17	2004-10-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	95.509995
+18	2004-11-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	98.45
+19	2004-11-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	93.11
+20	2004-11-15	0.5057600140571594	45.5	-0.9166674017906189	56.78
+21	2004-12-15	0.5057600140571594	45.166664123535156	-0.6666674017906189	84.25
+22	2004-12-15	0.5057600140571594	45.416664123535156	-0.8333340883255005	81.83
+23	2004-12-15	0.5057600140571594	45.5	-0.9166674017906189	57.07
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/var_tab_dataset-ibi	Fri May 22 05:18:55 2020 -0400
@@ -0,0 +1,7 @@
+time	1	time	145	 	 	 	 	 	 
+chl	4	time	145	depth	1	latitude	97	longitude	103
+nh4	4	time	145	depth	1	latitude	97	longitude	103
+longitude	1	longitude	103	 	 	 	 	 	 
+latitude	1	latitude	97	 	 	 	 	 	 
+depth	1	depth	1	 	 	 	 	 	 
+phy	4	time	145	depth	1	latitude	97	longitude	103
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xarray_tool.py	Fri May 22 05:18:55 2020 -0400
@@ -0,0 +1,302 @@
+# xarray tool for:
+# - getting metadata information
+# - select data and save results in csv file for further post-processing
+
+import argparse
+import csv
+import warnings
+
+import geopandas as gdp
+
+import pandas as pd
+
+from shapely.geometry import Point
+from shapely.ops import nearest_points
+
+import xarray as xr
+
+
+class XarrayTool ():
+    def __init__(self, infile, outfile_info="", outfile_summary="",
+                 select="", outfile="", outputdir="", latname="",
+                 latvalN="", latvalS="", lonname="", lonvalE="",
+                 lonvalW="", filter_list="", coords="", time="",
+                 verbose=False
+                 ):
+        self.infile = infile
+        self.outfile_info = outfile_info
+        self.outfile_summary = outfile_summary
+        self.select = select
+        self.outfile = outfile
+        self.outputdir = outputdir
+        self.latname = latname
+        if latvalN != "" and latvalN is not None:
+            self.latvalN = float(latvalN)
+        else:
+            self.latvalN = ""
+        if latvalS != "" and latvalS is not None:
+            self.latvalS = float(latvalS)
+        else:
+            self.latvalS = ""
+        self.lonname = lonname
+        if lonvalE != "" and lonvalE is not None:
+            self.lonvalE = float(lonvalE)
+        else:
+            self.lonvalE = ""
+        if lonvalW != "" and lonvalW is not None:
+            self.lonvalW = float(lonvalW)
+        else:
+            self.lonvalW = ""
+        self.filter = filter_list
+        self.time = time
+        self.coords = coords
+        self.verbose = verbose
+        # initialization
+        self.dset = None
+        self.gset = None
+        if self.verbose:
+            print("infile: ", self.infile)
+            print("outfile_info: ", self.outfile_info)
+            print("outfile_summary: ", self.outfile_summary)
+            print("outfile: ", self.outfile)
+            print("select: ", self.select)
+            print("outfile: ", self.outfile)
+            print("outputdir: ", self.outputdir)
+            print("latname: ", self.latname)
+            print("latvalN: ", self.latvalN)
+            print("latvalS: ", self.latvalS)
+            print("lonname: ", self.lonname)
+            print("lonvalE: ", self.lonvalE)
+            print("lonvalW: ", self.lonvalW)
+            print("filter: ", self.filter)
+            print("time: ", self.time)
+            print("coords: ", self.coords)
+
+    def info(self):
+        f = open(self.outfile_info, 'w')
+        ds = xr.open_dataset(self.infile)
+        ds.info(f)
+        f.close()
+
+    def summary(self):
+        f = open(self.outfile_summary, 'w')
+        ds = xr.open_dataset(self.infile)
+        writer = csv.writer(f, delimiter='\t')
+        header = ['VariableName', 'NumberOfDimensions']
+        for idx, val in enumerate(ds.dims.items()):
+            header.append('Dim'+str(idx)+'Name')
+            header.append('Dim'+str(idx)+'Size')
+        writer.writerow(header)
+        for name, da in ds.data_vars.items():
+            line = [name]
+            line.append(len(ds[name].shape))
+            for d, s in zip(da.shape, da.sizes):
+                line.append(s)
+                line.append(d)
+            writer.writerow(line)
+        for name, da in ds.coords.items():
+            line = [name]
+            line.append(len(ds[name].shape))
+            for d, s in zip(da.shape, da.sizes):
+                line.append(s)
+                line.append(d)
+            writer.writerow(line)
+        f.close()
+
+    def rowfilter(self, single_filter):
+        split_filter = single_filter.split('#')
+        filter_varname = split_filter[0]
+        op = split_filter[1]
+        ll = float(split_filter[2])
+        if (op == 'bi'):
+            rl = float(split_filter[3])
+        if filter_varname == self.select:
+            # filter on values of the selected variable
+            if op == 'bi':
+                self.dset = self.dset.where((self.dset <= rl) &
+                                            (self.dset >= ll))
+            elif op == 'le':
+                self.dset = self.dset.where(self.dset <= ll)
+            elif op == 'ge':
+                self.dset = self.dset.where(self.dset >= ll)
+            elif op == 'e':
+                self.dset = self.dset.where(self.dset == ll)
+        else:  # filter on other dimensions of the selected variable
+            if op == 'bi':
+                self.dset = self.dset.sel({filter_varname: slice(ll, rl)})
+            elif op == 'le':
+                self.dset = self.dset.sel({filter_varname: slice(None, ll)})
+            elif op == 'ge':
+                self.dset = self.dset.sel({filter_varname: slice(ll, None)})
+            elif op == 'e':
+                self.dset = self.dset.sel({filter_varname: ll},
+                                          method='nearest')
+
+    def selection(self):
+        if self.dset is None:
+            self.ds = xr.open_dataset(self.infile)
+            self.dset = self.ds[self.select]  # select variable
+            if self.time:
+                self.datetime_selection()
+            if self.filter:
+                self.filter_selection()
+
+        self.area_selection()
+        # convert to dataframe
+        self.gset = self.gset.to_dataframe().dropna(how='all').reset_index()
+        self.gset.to_csv(self.outfile, header=True, sep='\t')
+
+    def datetime_selection(self):
+        split_filter = self.time.split('#')
+        time_varname = split_filter[0]
+        op = split_filter[1]
+        ll = split_filter[2]
+        if (op == 'sl'):
+            rl = split_filter[3]
+            self.dset = self.dset.sel({time_varname: slice(ll, rl)})
+        elif (op == 'to'):
+            self.dset = self.dset.sel({time_varname: slice(None, ll)})
+        elif (op == 'from'):
+            self.dset = self.dset.sel({time_varname: slice(ll, None)})
+        elif (op == 'is'):
+            self.dset = self.dset.sel({time_varname: ll}, method='nearest')
+
+    def filter_selection(self):
+        for single_filter in self.filter:
+            self.rowfilter(single_filter)
+
+    def area_selection(self):
+        if self.latvalS != "" and self.lonvalW != "":
+            # Select geographical area
+            self.gset = self.dset.sel({self.latname:
+                                       slice(self.latvalS, self.latvalN),
+                                       self.lonname:
+                                       slice(self.lonvalW, self.lonvalE)})
+        elif self.latvalN != "" and self.lonvalE != "":
+            # select nearest location
+            self.nearest_location()  # find nearest location without NaN values
+            self.gset = self.dset.sel({self.latname: self.nearest_latvalN,
+                                       self.lonname: self.nearest_lonvalE},
+                                      method='nearest')
+        else:
+            self.gset = self.dset
+
+    def nearest_location(self):
+        # Build a geopandas dataframe with all first elements in each dimension
+        # so we assume null values correspond to a mask that is the same for
+        # all dimensions in the dataset.
+        dsel_frame = self.dset
+        for dim in self.dset.dims:
+            if dim != self.latname and dim != self.lonname:
+                dsel_frame = dsel_frame.isel({dim: 0})
+        # transform to pandas dataframe
+        dff = dsel_frame.to_dataframe().dropna().reset_index()
+        # transform to geopandas to collocate
+        gdf = gdp.GeoDataFrame(dff,
+                               geometry=gdp.points_from_xy(dff[self.lonname],
+                                                           dff[self.latname]))
+        # Find nearest location where values are not null
+        point = Point(self.lonvalE, self.latvalN)
+        multipoint = gdf.geometry.unary_union
+        queried_geom, nearest_geom = nearest_points(point, multipoint)
+        self.nearest_latvalN = nearest_geom.y
+        self.nearest_lonvalE = nearest_geom.x
+
+    def selection_from_coords(self):
+        fcoords = pd.read_csv(self.coords, sep='\t')
+        for row in fcoords.itertuples():
+            self.latvalN = row[0]
+            self.lonvalE = row[1]
+            self.outfile = (self.outputdir + '/' + self.select + '_'
+                            + str(row.Index) + '.tabular')
+            self.selection()
+
+
+if __name__ == '__main__':
+    warnings.filterwarnings("ignore")
+    parser = argparse.ArgumentParser()
+
+    parser.add_argument(
+        'infile',
+        help='netCDF input filename'
+    )
+    parser.add_argument(
+        '--info',
+        help='Output filename where metadata information is stored'
+    )
+    parser.add_argument(
+        '--summary',
+        help='Output filename where data summary information is stored'
+    )
+    parser.add_argument(
+        '--select',
+        help='Variable name to select'
+    )
+    parser.add_argument(
+        '--latname',
+        help='Latitude name'
+    )
+    parser.add_argument(
+        '--latvalN',
+        help='North latitude value'
+    )
+    parser.add_argument(
+        '--latvalS',
+        help='South latitude value'
+    )
+    parser.add_argument(
+        '--lonname',
+        help='Longitude name'
+    )
+    parser.add_argument(
+        '--lonvalE',
+        help='East longitude value'
+    )
+    parser.add_argument(
+        '--lonvalW',
+        help='West longitude value'
+    )
+    parser.add_argument(
+        '--coords',
+        help='Input file containing Latitude and Longitude'
+             'for geographical selection'
+    )
+    parser.add_argument(
+        '--filter',
+        nargs="*",
+        help='Filter list variable#operator#value_s#value_e'
+    )
+    parser.add_argument(
+        '--time',
+        help='select timeseries variable#operator#value_s[#value_e]'
+    )
+    parser.add_argument(
+        '--outfile',
+        help='csv outfile for storing results of the selection'
+             '(valid only when --select)'
+    )
+    parser.add_argument(
+        '--outputdir',
+        help='folder name for storing results with multiple selections'
+             '(valid only when --select)'
+    )
+    parser.add_argument(
+        "-v", "--verbose",
+        help="switch on verbose mode",
+        action="store_true"
+    )
+    args = parser.parse_args()
+
+    p = XarrayTool(args.infile, args.info, args.summary, args.select,
+                   args.outfile, args.outputdir, args.latname,
+                   args.latvalN, args.latvalS, args.lonname,
+                   args.lonvalE, args.lonvalW, args.filter,
+                   args.coords, args.time, args.verbose)
+    if args.info:
+        p.info()
+    if args.summary:
+        p.summary()
+    if args.coords:
+        p.selection_from_coords()
+    elif args.select:
+        p.selection()