Add FuryFitMultiple python algorithm for indirect data analysis

Refs #7376

Code/Mantid/Framework/PythonInterface/plugins/algorithms/WorkflowAlgorithms/FuryFitMultiple.py

@@ -0,0 +1,50 @@
+from mantid import config, logger, mtd, AlgorithmFactory
+from mantid.api import *
+from mantid.kernel import *
+from mantid.simpleapi import *
+import os.path
+
+class FuryFitMultiple(PythonAlgorithm):
+
+    def category(self):
+        return "Workflow\\MIDAS;PythonAlgorithms"
+
+    def PyInit(self):
+        self.declareProperty(name="InputType", defaultValue="File",validator=StringListValidator(['File', 'Workspace']),
+                             doc='Origin of data input - File (_red.nxs) or Workspace')
+        self.declareProperty(name="Instrument", defaultValue="iris",validator=StringListValidator(['irs', 'iris', 'osi', 'osiris']),
+                             doc='Instrument')
+        self.declareProperty(name='Analyser', defaultValue='graphite002', validator=StringListValidator(['graphite002', 'graphite004']),
+                             doc='Analyser & reflection')
+        self.declareProperty(name="RunNumber",defaultValue=-1, validator=IntBoundedValidator(lower=0),
+                             doc="Sample run number")
+        self.declareProperty(name="TimeMax", defaultValue=0.2, validator=FloatMandatoryValidator(), 
+                             doc="Multiplicative scale factor")
+        self.declareProperty(name='Plot', defaultValue='None', validator=StringListValidator(['None', 'Intensity', 'Tau', 'Beta', 'All']),
+                             doc='Switch Plot Off/On')
+
+    def PyExec(self):
+        from IndirectDataAnalysis import furyfitMult
+
+        workdir = config['defaultsave.directory']
+        inType = self.getProperty('InputType').value
+        prefix = self.getProperty('Instrument').value
+        ana = self.getProperty('Analyser').value
+        RunNumb = self.getProperty('RunNumber').value
+        xMax = self.getProperty('TimeMax').value
+        file = prefix + str(RunNumb) + '_' + ana
+        plotOp = self.getProperty('Plot').value
+        inWS = file + '_iqt'
+        if inType == 'File':
+            spath = os.path.join(workdir, inWS + '.nxs')  # path name for sample nxs file
+            logger.notice('Input from File : ' + spath)
+            LoadNexusProcessed(Filename=spath, OutputWorkspace=inWS)
+        else:
+            logger.notice('Input from Workspace : ' + inWS)
+        CropWorkspace(InputWorkspace=inWS, OutputWorkspace=inWS, XMin=0.0, XMax=xMax)
+        function = 'name=LinearBackground,A0=0.02,A1=0,ties=(A1=0);'
+        function +=     'name=UserFunction,Formula=Intensity*exp(-(x/Tau)^Beta),Intensity=0.98,Tau=0.02,Beta=0.8'
+
+        furyfitMult(inWS, function, 'SSSS', 0.0, 0.2, False, plotOp, True)
+
+AlgorithmFactory.subscribe(FuryFitMultiple)