Public Member Functions
def	__init__ (self, d=[], **attr)

def	__repr__ (self)

def	SVG (self, trans=None)

Public Attributes
	attr

	d

Static Public Attributes
dictionary	defaults = {"stroke-width":"0.25pt"}

Detailed Description

Draws x error bars at a set of points. This is usually used
before (under) a set of Dots at the same points.

XErrorBars(d, attribute=value)

d                       required        list of (x,y,xerr...) points
attribute=value pairs   keyword list    SVG attributes

If points in d have

    * 3 elements, the third is the symmetric error bar
    * 4 elements, the third and fourth are the asymmetric lower and
      upper error bar. The third element should be negative,
      e.g. (5, 5, -1, 2) is a bar from 4 to 7.
    * more than 4, a tick mark is placed at each value. This lets
      you nest errors from different sources, correlated and
      uncorrelated, statistical and systematic, etc.

Definition at line 3280 of file svgfig.py.

Constructor & Destructor Documentation

◆ init()

def svgfig.XErrorBars.__init__	(		self,
			d = `[]`,
		**	attr
	)

Definition at line 3304 of file svgfig.py.

   def __init__(self, d=[], **attr):
     self.d = list(d)
  
     self.attr = dict(self.defaults)
     self.attr.update(attr)
     

Member Function Documentation

◆ repr()

def svgfig.XErrorBars.__repr__ ( self )

Definition at line 3301 of file svgfig.py.

   def __repr__(self):
     return "<XErrorBars (%d nodes)>" % len(self.d)
  

References svgfig.Fig.d, svgfig.Plot.d, svgfig.Frame.d, svgfig.Path.d, svgfig.Poly.d, svgfig.Text.d, svgfig.TextGlobal.d, svgfig.Dots.d, and svgfig.XErrorBars.d.

Referenced by data_sources.json_file.__str__().

◆ SVG()

def svgfig.XErrorBars.SVG	(	self,
		trans = `None`
	)

Apply the transformation "trans" and return an SVG object.

Definition at line 3310 of file svgfig.py.

   def SVG(self, trans=None):
     """Apply the transformation "trans" and return an SVG object."""
     if isinstance(trans, str): trans = totrans(trans) # only once
  
     output = SVG("g")
     for p in self.d:
       x, y = p[0], p[1]
  
       if len(p) == 3: bars = [x - p[2], x + p[2]]
       else: bars = [x + pi for pi in p[2:]]
       
       start, end = min(bars), max(bars)
       output.append(LineAxis(start, y, end, y, start, end, bars, False, False, **self.attr).SVG(trans))
  
     return output
  