Python data and runfile modules - Revision history

Dvw at 03:21, 1 March 2018

2018-03-01T03:21:08Z

Dvw at 00:46, 31 August 2016

2016-08-31T00:46:03Z

Dvw at 23:08, 30 August 2016

2016-08-30T23:08:26Z

Mhasse at 20:33, 27 June 2012

2012-06-27T20:33:34Z

Mhasse: /* MCEButterworth class */

2012-06-27T20:22:04Z

‎MCEButterworth class

Mhasse: /* MCEFile / SmallMCEFile classes */

2012-01-27T21:45:43Z

‎MCEFile / SmallMCEFile classes

Mhasse: /* MCEButterworth class */

2012-01-27T21:40:29Z

‎MCEButterworth class

Mhasse at 21:23, 27 January 2012

2012-01-27T21:23:09Z

174.6.181.2 at 22:10, 5 April 2009

2009-04-05T22:10:50Z

174.6.181.2 at 22:10, 5 April 2009

2009-04-05T22:10:18Z

@@ Line 6: / Line 6: @@
 = mce_data.py =
 The module mce_data.py provide roughly the same functionality that [[ mas_data.pro ]] and [[ mas_runfile.pro and mas_runparam.pro | mas_runfile.pro ]] provide for IDL.
 == System setup ==

← Older revision		Revision as of 00:46, 31 August 2016
Line 227:		Line 227:
	The application of the FIR to fully sampled data can be simulated with the apply_filter_fir method. See source for documentation.		The application of the FIR to fully sampled data can be simulated with the apply_filter_fir method. See source for documentation.

−	[[Category:~~Software~~]]	+	[[Category:MCE Script]]
		+	[[Category:Python]]

← Older revision		Revision as of 23:08, 30 August 2016
Line 226:		Line 226:

	The application of the FIR to fully sampled data can be simulated with the apply_filter_fir method. See source for documentation.		The application of the FIR to fully sampled data can be simulated with the apply_filter_fir method. See source for documentation.
		+
		+	[[Category:Software]]

@@ Line 1: / Line 1: @@
 Recent changes:
-* mce_script/trunk r408: Merged mce_runfile.py into mce_data.py.  Use mce_data.py for everything.
+* mce_script/trunk r960: MCEButterworth class can be used to filter/unfilter data arrays.
-* mce_script/trunk r407: SmallMCEFile is smarter about frame counts, and less verbose unless challenged.
+* mce_script/trunk r902: MCEFile has options to automatically "unwrap" data bit-windowing effects; also can compute and remove DC filter gain.
 The interfaces described here are based on mce_script/trunk r408.
-= mce_data.py and mce_runfile.py =
+= mce_data.py =
 == Notes ==
 The module mce_data.py provide roughly the same functionality that [[ mas_data.pro ]] and [[ mas_runfile.pro and mas_runparam.pro | mas_runfile.pro ]] provide for IDL.

@@ Line 214: / Line 214: @@
 .3620800781277
-Or get a whole spectrum (this will get the filter gain at frequencies up to 400 Hz, assuming a 15kHz readout):
+You can also get the whole complex filter transfer function.  This example gets the filter gain at frequencies up to 400 Hz, assuming a 15kHz readout:
   >>> f = numpy.arange(0., 400)
-  >>> y = filt.spectrum(f, f_samp=15151.)
+  >>> y = filt.transfer(f, f_samp=15151.)

@@ Line 65: / Line 65: @@
    [False, True, False, False], 'address0_ctr': 23142826, 'num_rows': 41,
    'ramp_value': 0, 'frame_counter': 0, 'sync_box_num': 0, 'ramp_addr': 0}
 == Raw frame data ==

← Older revision		Revision as of 21:40, 27 January 2012
Line 185:		Line 185:

	= MCEButterworth class =		= MCEButterworth class =
		+
		+	In newer readout card firmware the [[Digital 4-pole Butterworth Low-pass filter \| low pass filter]] is configurable. The filter parameters can be loaded directly, or parsed from runfiles using the MCEButterworth class.
		+
		+	Parameters may be specified in the constructor; e.g. for a type 1 filter:
		+	>>> import mce_data
		+	>>> filt = mce_data.MCEButterworth([ 32092, 15750, 31238, 14895, 0, 11])
		+	or you can get them from a runfile:
		+	>>> filt = mce_data.MCEButterworth.from_runfile('data_1203.run')
		+
		+	Then you can see the DC response:
		+	>>> filt.gain()
		+	1217.8583042973287
		+
		+	The f3dB frequency:
		+	>>> filt.f3dB(f_samp=15151.)
		+	122.3620800781277
		+
		+	Or get a whole spectrum (this will get the filter gain at frequencies up to 400 Hz, assuming a 15kHz readout):
		+	>>> f = numpy.arange(0., 400)
		+	>>> y = filt.spectrum(f, f_samp=15151.)

← Older revision		Revision as of 21:23, 27 January 2012
Line 183:		Line 183:
	>>> len(a[0])		>>> len(a[0])
	41		41
		+
		+	= MCEButterworth class =

@@ Line 125: / Line 125: @@
   >>> d = f.Read(data_mode=10, field='fb_filt')
-= mce_runfile.py =
+= MCERunfile class =
 Note that in older versions of mce_script, the MCERunfile class is contained in the file mce_runfile.py.  In that case, replace "from mce_data import ..." with "from mce_runfile import ..." in what follows.

@@ Line 1: / Line 1: @@
-Python. Way of the future.
+Recent changes:
-The python modules mce_data.py and mce_runfile.py provide roughly the same functionality that [[ mas_data.pro ]] and [[ mas_runfile.pro and mas_runparam.pro | mas_runfile.pro ]] provide for IDL.
+The interfaces described here are based on mce_script/trunk r408.
-The interfaces described here are based on mce_script/trunk r392.
+= mce_data.py and mce_runfile.py =
-= mce_data.py =
+== Notes ==
-This provides a way to load SMALL frame data files into python.  SMALL means less than 50000 frames.
+The module mce_data.py provide roughly the same functionality that [[ mas_data.pro ]] and [[ mas_runfile.pro and mas_runparam.pro | mas_runfile.pro ]] provide for IDL.
-== Basic usage ==
+In the latest versions of the scripts, mce_runfile.py is no longer needed as the MCERunfile class has been merged into mce_data.py
-Make sure python can find mce_data.py and mce_runfile.py.  $MAS_PYTHON should be in your PYTHONPATH environment variable.
+Make sure python can find mce_data.py (and possibly mce_runfile.py).  $MAS_PYTHON should be in your PYTHONPATH environment variable.
   mce@mce-ubc-2:~$ export PYTHONPATH=$PYTHONPATH:$MAS_PYTHON
 In python, import the 'mce_data' module and create a SmallMCEFile object:
@@ Line 25: / Line 38: @@
 Then load the data like this:
   >>> d = f.Read()
 The data member of d is a 2d array, [n_detectors, n_frames]:
@@ Line 59: / Line 71: @@
   >>> raw = f.Read(raw_frames=True)
   >>> raw.shape
   (100, 1100)
@@ Line 116: / Line 127: @@
 = mce_runfile.py =
-Note that in some cases (and this is the way things are going), the MCERunfile class is contained in mce_data.py.  In that case, replace "mce_runfile" with "mce_data" in what follows.
+Note that in older versions of mce_script, the MCERunfile class is contained in the file mce_runfile.py.  In that case, replace "from mce_data import ..." with "from mce_runfile import ..." in what follows.
 == Load a runfile ==