Central Pivot Range (ta.cpr)

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Compute the pivot and support/resistance using only the previous input bar; no cross-timeframe aggregation is automatic.

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Run this example

This complete script uses bundled data. It observes the selected output without placing trades.

import numpy as np
from openbacktesting import Backtest, Strategy
from openbacktesting.test import GOOG

data = GOOG.copy()

class Example(Strategy):
    def init(self):
        self.value = self.ta.cpr()
        self.latest_value = None

    def next(self):
        channel = self.value.top
        if channel.valid[-1]:
            self.latest_value = float(channel[-1])

result = Backtest(data, Example).run()
print(result["_strategy"].latest_value)

Call and parameters

self.ta.cpr(*, inputs=None, backend=None, required_outputs=None)

Register in init(). Read the returned channel in next() after checking valid[-1].

Parameter	Meaning	Type	Default	Allowed values
—	No formula parameters.	—	—	—

source/named source arguments accept a column name or same-run single-channel handle. Alternatively, inputs maps each input below to a column or handle. backend selects a supported implementation; required_outputs selects channels for readiness diagnostics. See shared arguments and handles.

Inputs and outputs

Required inputs: open_, high, low, close, volume.

Channel	Meaning
top	Top central-pivot boundary
pivot	Central pivot level
bottom	Bottom central-pivot boundary
r1	Resistance level 1
r2	Resistance level 2
s1	Support level 1
s2	Support level 2
width	Absolute central-pivot width
width_percent	Central-pivot width relative to the pivot
width_class	Central-pivot width classification
position	Price position relative to the range

Reading values safely

Insufficient history or missing inputs can make a channel invalid. Check that channel's valid mask; ready is diagnostic and never suppresses next(). Multi-output results may have different valid channels on the same bar.

Indicator catalog · Custom calculations