def formula(quantity):
""" returns error formula of quantity as latex code
Args:
quantity: Quantity object
Return:
latex code string of error formula
"""
assert isinstance(quantity, Quantity)
if quantity.error_formula is None:
raise ValueError("quantity '%s' doesn't have an error formula." % quantity.name)
formula = quantity.error_formula
if isinstance(formula,str):
return formula
else:
# replace "_err" by sigma function
sigma = Function("\sigma")
for var in formula.free_symbols:
if var.name[-4:] == "_err":
formula = formula.subs(var, sigma( Symbol(var.name[:-4], **var._assumptions)))
latex_code = latex(sigma(quantity)) + " = " + latex(formula)
form_button, form_code = pytex.hide_div('Formula', '$%s$' % (latex_code) , hide = False)
latex_button, latex_code = pytex.hide_div('LaTex', latex_code)
res = 'Error Formula for %s<div width=20px/>%s%s<hr/>%s<br>%s' % (
'$%s$' % latex(quantity), form_button, latex_button, form_code, latex_code)
return render_latex(res)
def qtable(*quantities, html=True, maxcols=5):
""" Represent quantites in a table.
Args:
quantities: List of quantity objects.
html: If True, output will be formatted to be displayable html.
Else, LaTeX and html code is returned in a tuple.
maxcols:
Maximum number of columns. Table will be split.
Returns:
String of html code (html=True) or tuple (LaTeX table, html table).
"""
if len(quantities) == 0:
return 'No quantities selected.'
cols = []
if html:
if not maxcols:
maxcols = len(quantities)
def chunks(l):
for i in range(0, len(quantities), maxcols):
yield l[i:i+maxcols]
html = []
ltx = []
for chunk in chunks(quantities):
l, h = qtable(*chunk, html=False, maxcols=None)
html.append(h)
ltx.append(l)
htmlb, htmlc = pytex.hide_div('Data', ''.join(html), hide = False)
ltxb, ltxc = pytex.hide_div('LaTeX', ''.join(ltx))
res = 'Displaying: %s<div width=20px/>%s%s<hr/>%s<br>%s' % (
', '.join('$%s$' % latex(q) for q in quantities),
htmlb, ltxb, htmlc, ltxc)
return res
for quant in quantities:
assert isinstance(quant, Quantity)
value, error, unit = adjust_to_unit(quant)
header = quant.longname + ' ' if quant.longname else ''
header += '$%s \\; \\mathrm{\\left[%s\\right]}$' % (
latex(quant), latex(unit))
column = [header]
if error is None:
if isinstance(value, np.ndarray):
column.extend(pytex.align_num_list(value))
else:
column.append(pytex.align_num(value))
else:
if isinstance(value, np.ndarray):
column.extend(pytex.format_valerr_list(value,error))
else:
column.append(pytex.format_valerr(value,error))
cols.append(column)
return (pytex.table_latex(cols), pytex.table_html(cols))