diff --git a/Framework/DataHandling/CMakeLists.txt b/Framework/DataHandling/CMakeLists.txt
index 0371fc1ba0dbc27720273eaae80e552a2555f77e..15810963635c4e923a63dbbfcd47144927d55872 100644
--- a/Framework/DataHandling/CMakeLists.txt
+++ b/Framework/DataHandling/CMakeLists.txt
@@ -183,6 +183,7 @@ set(SRC_FILES
src/SaveReflCustomAscii.cpp
src/SaveReflThreeColumnAscii.cpp
src/SaveReflectometryAscii.cpp
+ src/SaveRMCProfile.cpp
src/SaveSESANS.cpp
src/SaveSPE.cpp
src/SaveSampleEnvironmentAndShape.cpp
@@ -382,6 +383,7 @@ set(INC_FILES
inc/MantidDataHandling/SaveReflCustomAscii.h
inc/MantidDataHandling/SaveReflThreeColumnAscii.h
inc/MantidDataHandling/SaveReflectometryAscii.h
+ inc/MantidDataHandling/SaveRMCProfile.h
inc/MantidDataHandling/SaveSESANS.h
inc/MantidDataHandling/SaveSPE.h
inc/MantidDataHandling/SaveSampleEnvironmentAndShape.h
@@ -567,6 +569,7 @@ set(TEST_FILES
SaveReflCustomAsciiTest.h
SaveReflThreeColumnAsciiTest.h
SaveReflectometryAsciiTest.h
+ SaveRMCProfileTest.h
SaveSESANSTest.h
SaveSPETest.h
SaveSampleEnvironmentAndShapeTest.h
diff --git a/Framework/DataHandling/inc/MantidDataHandling/SaveRMCProfile.h b/Framework/DataHandling/inc/MantidDataHandling/SaveRMCProfile.h
new file mode 100644
index 0000000000000000000000000000000000000000..32c887b768df7e379255a8a14dc5bd99f5b4b0a0
--- /dev/null
+++ b/Framework/DataHandling/inc/MantidDataHandling/SaveRMCProfile.h
@@ -0,0 +1,48 @@
+// Mantid Repository : https://github.com/mantidproject/mantid
+//
+// Copyright © 2020 ISIS Rutherford Appleton Laboratory UKRI,
+// NScD Oak Ridge National Laboratory, European Spallation Source
+// & Institut Laue - Langevin
+// SPDX - License - Identifier: GPL - 3.0 +
+#ifndef MANTID_DATAHANDLING_SAVERMCPROFILE_H_
+#define MANTID_DATAHANDLING_SAVERMCPROFILE_H_
+
+#include "MantidAPI/Algorithm.h"
+#include "MantidKernel/System.h"
+
+namespace Mantid {
+namespace DataHandling {
+
+/** SaveRMCProfile : Saves a workspace containing a spectral density in
+a format readable by the RMCProfile package.
+
+Required Properties:
+<UL>
+<LI> InputWorkspace - An input workspace with units of Q </LI>
+<LI> Filename - The filename to use for the saved data </LI>
+</UL>
+ */
+class DLLExport SaveRMCProfile : public API::Algorithm {
+public:
+ const std::string name() const override;
+ int version() const override;
+ const std::vector<std::string> seeAlso() const override {
+ return {"SaveRMCProfile"};
+ }
+ const std::string category() const override;
+ const std::string summary() const override;
+ std::map<std::string, std::string> validateInputs() override;
+
+private:
+ void init() override;
+ void exec() override;
+ void writeMetaData(std::ofstream &out,
+ API::MatrixWorkspace_const_sptr inputWS);
+ void writeWSData(std::ofstream &out,
+ API::MatrixWorkspace_const_sptr inputWS);
+};
+
+} // namespace DataHandling
+} // namespace Mantid
+
+#endif /* MANTID_DATAHANDLING_SAVERMCPROFILE_H_ */
diff --git a/Framework/DataHandling/src/SaveRMCProfile.cpp b/Framework/DataHandling/src/SaveRMCProfile.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ee9c5d5d22d991fe85dec6313028ed8b885769fe
--- /dev/null
+++ b/Framework/DataHandling/src/SaveRMCProfile.cpp
@@ -0,0 +1,120 @@
+// Mantid Repository : https://github.com/mantidproject/mantid
+//
+// Copyright © 2020 ISIS Rutherford Appleton Laboratory UKRI,
+// NScD Oak Ridge National Laboratory, European Spallation Source
+// & Institut Laue - Langevin
+// SPDX - License - Identifier: GPL - 3.0 +
+#include "MantidDataHandling/SaveRMCProfile.h"
+
+#include "MantidAPI/Axis.h"
+#include "MantidAPI/FileProperty.h"
+#include "MantidAPI/MatrixWorkspace.h"
+#include "MantidAPI/Run.h"
+#include "MantidKernel/MantidVersion.h"
+#include "MantidKernel/Unit.h"
+
+#include <fstream>
+
+namespace Mantid {
+namespace DataHandling {
+
+using Mantid::API::WorkspaceProperty;
+using Mantid::Kernel::Direction;
+
+// Register the algorithm into the AlgorithmFactory
+DECLARE_ALGORITHM(SaveRMCProfile)
+
+/// Algorithm's name for identification. @see Algorithm::name
+const std::string SaveRMCProfile::name() const { return "SaveRMCProfile"; }
+
+/// Algorithm's version for identification. @see Algorithm::version
+int SaveRMCProfile::version() const { return 1; }
+
+/// Algorithm's category for identification. @see Algorithm::category
+const std::string SaveRMCProfile::category() const { return "DataHandling\\Text"; }
+
+/// Algorithm's summary for use in the GUI and help. @see Algorithm::summary
+const std::string SaveRMCProfile::summary() const {
+ return "Save files readable by RMCProfile";
+}
+
+/** Initialize the algorithm's properties.
+ */
+void SaveRMCProfile::init() {
+ declareProperty(std::make_unique<WorkspaceProperty<>>("InputWorkspace", "",
+ Direction::Input),
+ "An input workspace with units of Q.");
+ declareProperty(std::make_unique<API::FileProperty>(
+ "Filename", "", API::FileProperty::Save, ".gr"),
+ "The filename to use for the saved data");
+}
+
+/// @copydoc Algorithm::validateInputs
+std::map<std::string, std::string> SaveRMCProfile::validateInputs() {
+ std::map<std::string, std::string> result;
+
+ // check for null pointers - this is to protect against workspace groups
+ API::MatrixWorkspace_const_sptr inputWS = getProperty("InputWorkspace");
+ if (!inputWS) {
+ return result;
+ }
+
+ const auto nHist = static_cast<int>(inputWS->getNumberHistograms());
+ if (nHist != 1) {
+ result["InputWorkspace"] = "Workspace must contain only one spectrum";
+ } else if (std::string(inputWS->getAxis(0)->unit()->label()) != "Angstrom^-1") {
+ result["InputWorkspace"] = "Expected x-units of Angstrom^-1";
+ }
+
+ return result;
+}
+
+/** Execute the algorithm.
+ */
+void SaveRMCProfile::exec() {
+ API::MatrixWorkspace_const_sptr inputWS = getProperty("InputWorkspace");
+ const std::string filename = getProperty("Filename");
+
+ // --------- open the file
+ std::ofstream out;
+ out.open(filename.c_str(), std::ios_base::out);
+
+ // --------- write the header in the style of required metadata
+ writeMetaData(out, inputWS);
+
+ // --------- write the data
+ writeWSData(out, inputWS);
+
+ // --------- close the file
+ out.close();
+}
+
+void SaveRMCProfile::writeMetaData(std::ofstream& out,
+ API::MatrixWorkspace_const_sptr inputWS) {
+ out << "#example comment";
+}
+
+void SaveRMCProfile::writeWSData(std::ofstream& out,
+ API::MatrixWorkspace_const_sptr inputWS) {
+ const auto &x = inputWS->x(0);
+ const auto &y = inputWS->y(0);
+ const auto &dy = inputWS->e(0);
+ HistogramData::HistogramDx dx(y.size(), 0.0);
+ if (inputWS->sharedDx(0))
+ dx = inputWS->dx(0);
+ const size_t length = x.size();
+ if (x.size() == y.size()) {
+ for (size_t i = 0; i < length; ++i) {
+ out << " " << x[i] << " " << y[i] << " " << dx[i] << " " << dy[i]
+ << "\n";
+ }
+ } else {
+ for (size_t i = 0; i < length - 1; ++i) {
+ out << " " << (x[i] + x[i + 1]) / 2.0 << " " << y[i] << " " << dx[i]
+ << " " << dy[i] << "\n";
+ }
+ }
+}
+
+} // namespace DataHandling
+} // namespace Mantid
diff --git a/docs/source/algorithms/SaveRCMProfile-v1.rst b/docs/source/algorithms/SaveRCMProfile-v1.rst
new file mode 100644
index 0000000000000000000000000000000000000000..aa97aa61a6a3a66c488da5966058ba51f243ab19
--- /dev/null
+++ b/docs/source/algorithms/SaveRCMProfile-v1.rst
@@ -0,0 +1,59 @@
+
+.. algorithm::
+
+.. summary::
+
+.. relatedalgorithms::
+
+.. properties::
+
+Description
+-----------
+
+This algorithm saves S(Q)-1 files consistent with `RMCProfile <http://www.rmcprofile.org/Main_Page>`_.
+The body of the file is of the form ``Q SQ-1 dQ dSQ``.
+
+Usage
+-----
+.. Try not to use files in your examples,
+ but if you cannot avoid it then the (small) files must be added to
+ autotestdata\UsageData and the following tag unindented
+ .. include:: ../usagedata-note.txt
+
+**Example - SaveRMCProfile**
+
+.. testcode:: SaveRMCProfileExample
+
+ # Create a host workspace
+ ws = CreateWorkspace(DataX=range(0,3), DataY=range(0,3), UnitX="Angstrom^-1")
+
+ # Create a filename
+ import os
+ path = os.path.join(os.path.expanduser("~"), "savermcprofile.gr")
+
+ # Save as S(Q)-1 file
+ SavePDFGui(ws, path)
+
+ # Check that the file exists
+ print(os.path.isfile(path))
+
+Output:
+
+.. testoutput:: SaveRMCProfileExample
+
+ True
+
+.. testcleanup:: SaveRMCProfileExample
+
+ DeleteWorkspace(ws)
+ import os
+ try:
+ path = os.path.join(os.path.expanduser("~"), "savermcprofile.gr")
+ os.remove(path)
+ except:
+ pass
+
+.. categories::
+
+.. sourcelink::
+