3.2.2.0 tableplot.iterplotstart

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tableplot.iterplotstart - Function

3.2.2 Initialize plotting with an iteration axis
Description

Begin a series of plots using subtables constructed via an iteration axes. In addition to plotdata parameters, set a list of iteration axes (Table column names) and use iterplotnext() to step through. Only forward step through is allowed.

Arguments


Inputs
poption	Record of plot options default is nxpanels=1, nypanels=1, windowsize=6, aspectratio=0.8, fontsize=1.0
	allowed:	any
	Default:	record 1 1 6 0.8 1.0
labels	List of strings : Title,Xlabel,Ylabel
	allowed:	stringArray
	Default:
datastr	List of TaQL strings : X,Y
	allowed:	stringArray
	Default:
iteraxes	List of strings : Iteration axes
	allowed:	stringArray
	Default:

Returns
bool

Example

# Open a list of MS tables to plot from,
# and initialize a plot of Amplitude vs UV distance for
# channel 1 and stokes 1, iterating over Antenna1
tp.open(tabnames=[’3c273.ms’,’3c48.ms’])
pop = { ’nrows’:3, ’ncols’:1,’panel’:1, ’plotcolour’:1,
’aspectratio’:1.6}
iteraxes = [’ANTENNA1’]
labels = [’Amplitude vs UVdist’,’uvdist’,’amplitude’]
xystr = [’SQRT(SUMSQUARE(UVW[1:2]))’,’AMPLITUDE(DATA[1,1:2])’]
tp.iterplotstart(poption=pop, labels=labels, datastr=xystr,
iteraxes=iteraxes)
tp.iterplotnext()

Example

To iterate over baseline and plot Amplitude vs time, for stokes 1, channel 1.

pop = { ’nrows’:4, ’ncols’:1 }
labels = [’Amplitude vs UVdist (iterating over Baseline)’,
’uvdist’,’amplitude’]
xystr = [’SQRT(SUMSQUARE(UVW[1:2]))’,’AMPLITUDE(DATA[1,1])’]
iteraxes = [’ANTENNA1’,’ANTENNA2’]
tp.iterplotstart(poption=plotopts,labels=labels,
datastr=xystr,iteraxes=iteraxes)

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