--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/unionBedGraphs.xml	Tue Nov 04 01:45:04 2014 -0500
@@ -0,0 +1,232 @@
+<tool id="bedtools_mergebedgraph" name="Merge BedGraph files" version="@WRAPPER_VERSION@.0">
+    <description></description>
+    <macros>
+        <import>macros.xml</import>
+    </macros>
+    <expand macro="requirements" />
+    <expand macro="stdio" />
+    <command>unionBedGraphs
+        $header
+        -filler '$filler'
+        #if $zero.value == True:
+            -empty
+            -g ${chromInfo}
+        #end if
+        
+        -i '$input1'
+        '$input2'
+        #for $q in $bedgraphs
+            '${q.input}'
+        #end for
+
+        -names
+        #if $name1.choice == "tag":
+            '${input1.name}'
+        #else
+            '${name1.custom_name}'
+        #end if
+
+        #if $name2.choice == "tag":
+            '${input2.name}'
+        #else
+            '${name2.custom_name}'
+        #end if
+
+        #for $q in $bedgraphs
+            #if $q.name.choice == "tag":
+                '${q.input.name}'
+            #else
+                '${q.input.custom_name}'
+            #end if
+        #end for
+        &gt; '$output'
+    </command>
+    <inputs>
+        <!-- Make it easy for the user, first two input files are always shown -->
+        <!-- INPUT 1 -->
+        <param name="input1" format="bedgraph" type="data" label="First BedGraph file" />
+        
+        <conditional name="name1">
+            <param name="choice" type="select" label="Sample name">
+                <option value="tag" selected="true">Use input's tag</option>
+                <option value="custom">Enter custom table name</option>
+            </param>
+            <when value="tag">
+            </when>
+            <when value="custom">
+                <param name="custom_name" type="text" area="false" label="Custom sample name"/>
+            </when>
+        </conditional>
+
+        <!-- INPUT 2 -->
+        <param name="input2" format="bedgraph" type="data" label="Second BedGraph file" />
+        
+        <conditional name="name2">
+            <param name="choice" type="select" label="Sample name">
+                <option value="tag" selected="true">Use input's tag</option>
+                <option value="custom">Enter custom table name</option>
+            </param>
+            <when value="tag">
+            </when>
+            <when value="custom">
+                <param name="custom_name" type="text" area="false" label="Custom sample name"/>
+            </when>
+        </conditional>
+
+        <!-- Additional files, if the user needs more -->
+        <repeat name="bedgraphs" title="Add'l BedGraph files" >
+            <param name="input" format="bedgraph" type="data" label="BedGraph file" />
+            <conditional name="name">
+                <param name="choice" type="select" label="Sample name">
+                    <option value="tag" selected="true">Use input's tag</option>
+                    <option value="custom">Enter custom table name</option>
+                </param>
+                <when value="tag">
+                </when>
+                <when value="custom">
+                    <param name="custom_name" type="text" area="false" label="Custom sample name"/>
+                </when>
+            </conditional>
+        </repeat>
+
+        <param name="header" type="boolean" checked="true" truevalue="-header" falsevalue="" label="Print header line" help="The first line will include the name of each sample." />
+
+        <param name="zero" type="boolean" checked="true" label="Report regions with zero coverage" help="If set, regions without any coverage will also be reported. Requires a valid organism key for all input datasets" />
+
+        <param name="filler" type="text" value="0" label="Text to use for no-coverage value" help="Can be 0.0, N/A, - or any other value." />
+    </inputs>
+
+    <outputs>
+        <data format="tabular" name="output"  metadata_source="input1" label="Merged BedGraphs of ${input1.name}, ${input2.name} and so on." />
+    </outputs>
+    <help>
+    
+**What it does**
+
+This tool merges multiple BedGraph files, allowing direct and fine-scale coverage comparisons among many samples/files. The BedGraph files need not represent the same intervals; the tool will identify both common and file-specific intervals. In addition, the BedGraph values need not be numeric: one can use any text as the BedGraph value and the tool will compare the values from multiple files.
+
+.. image:: http://people.virginia.edu/~arq5x/files/bedtools-galaxy/ubg.png
+
+
+.. class:: warningmark
+
+This tool requires that each BedGraph file is reference-sorted (chrom, then start) and contains non-overlapping intervals (within a given file).
+
+
+------
+
+**Example input**::
+
+    # 1.bedgraph
+    chr1  1000    1500    10
+    chr1  2000    2100    20
+
+    # 2.bedgraph
+    chr1  900       1600    60
+    chr1  1700    2050    50
+
+    # 3.bedgraph
+    chr1  1980    2070    80
+    chr1  2090    2100    20
+
+
+------
+
+**Examples using the Zero Coverage checkbox**
+
+Output example (*without* checking "Report regions with zero coverage")::
+    
+    chr1     900    1000     0    60     0
+    chr1    1000    1500    10    60     0
+    chr1    1500    1600     0    60     0
+    chr1    1700    1980     0    50     0
+    chr1    1980    2000     0    50    80
+    chr1    2000    2050    20    50    80
+    chr1    2050    2070    20     0    80
+    chr1    2070    2090    20     0     0
+    chr1    2090    2100    20     0    20
+
+
+Output example (*with* checking "Report regions with zero coverage"). The lines marked with (*) are not covered in any input file, but are still reported (The asterisk marking does not appear in the file).::
+    
+    chr1       0          900     0     0     0 (*)
+    chr1     900         1000     0    60     0
+    chr1    1000         1500    10    60     0
+    chr1    1500         1600     0    60     0
+    chr1    1600         1700     0     0     0 (*)
+    chr1    1700         1980     0    50     0
+    chr1    1980         2000     0    50    80
+    chr1    2000         2050    20    50    80
+    chr1    2050         2070    20     0    80
+    chr1    2070         2090    20     0     0
+    chr1    2090         2100    20     0    20
+    chr1    2100    247249719     0     0     0 (*) 
+
+
+------
+
+**Examples adjusting the "Filler value" for no-covered intervals**
+
+The default value is '0', but you can use any other value.
+
+Output example with **filler = N/A**::
+    
+    chr1     900    1000    N/A     60    N/A
+    chr1    1000    1500     10     60    N/A
+    chr1    1500    1600    N/A     60    N/A
+    chr1    1600    1700    N/A    N/A    N/A
+    chr1    1700    1980    N/A     50    N/A
+    chr1    1980    2000    N/A     50     80
+    chr1    2000    2050     20     50     80
+    chr1    2050    2070     20    N/A     80
+    chr1    2070    2090     20    N/A    N/A
+    chr1    2090    2100     20    N/A     20
+
+
+------
+
+**Examples using the "sample name" labels**::
+
+    chrom   start   end     WT-1    WT-2    KO-1
+    chr1    900     1000    N/A     60      N/A
+    chr1    1000    1500     10     60      N/A
+    chr1    1500    1600    N/A     60      N/A
+    chr1    1600    1700    N/A    N/A      N/A
+    chr1    1700    1980    N/A     50      N/A
+    chr1    1980    2000    N/A     50      80
+    chr1    2000    2050     20     50      80
+    chr1    2050    2070     20    N/A      80
+    chr1    2070    2090     20    N/A      N/A
+    chr1    2090    2100     20    N/A      20
+
+
+------
+
+**Non-numeric values**
+
+The input BedGraph files can contain any kind of value in the fourth column, not necessarily a numeric value.
+
+Input Example::
+        
+    File-1                           File-2 
+    chr1   200   300   Sample1       chr1   100   240   0.75
+    chr1   400   450   Sample1       chr1   250   700   0.43
+    chr1   530   600   Sample2
+
+Output Example::
+    
+    chr1   100    200    0         0.75
+    chr1   200    240    Sample1   0.75
+    chr1   240    250    Sample1   0
+    chr1   250    300    Sample1   0.43
+    chr1   300    400    0         0.43
+    chr1   400    450    Sample1   0.43
+    chr1   450    530    0         0.43
+    chr1   530    600    Sample2   0.43
+    chr1   600    700    0         0.43
+
+@REFERENCES@
+ 
+    </help>
+    <expand macro="citations" />
+</tool>