# Typical Price

## Function Prototype

/* Typical Price */
/* Type: overlay */
/* Input arrays: 3    Options: 0    Output arrays: 1 */
/* Inputs: high, low, close */
/* Options: none */
/* Outputs: typprice */
int ti_typprice_start(TI_REAL const *options);
int ti_typprice(int size,
TI_REAL const *const *inputs,
TI_REAL const *options,
TI_REAL *const *outputs);

## Description

This documentation is still a work in progress. It has omissions, and it probably has errors too. If you see any issues, or have any general feedback, please get in touch.

The Typical Price calculates the arithmetic mean of the high, low, and close of a bar.

$$typprice_{t} = \frac{high_{t}+low_{t}+close_{t}}{3}$$

## Example Usage

### Calling From C

/* Example usage of Typical Price */
/* Assuming that 'high', 'low', and 'close' are pre-loaded arrays of size 'in_size'. */
TI_REAL *inputs[] = {high, low, close};
TI_REAL options[] = {}; /* No options */
TI_REAL *outputs[1]; /* typprice */

/* Determine how large the output size is for our options. */
const int out_size = in_size - ti_typprice_start(options);

/* Allocate memory for output. */
outputs[0] = malloc(sizeof(TI_REAL) * out_size); assert(outputs[0] != 0); /* typprice */

/* Run the actual calculation. */
const int ret = ti_typprice(in_size, inputs, options, outputs);
assert(ret == TI_OKAY);


### Calling From Lua (with Tulip Chart bindings)

-- Example usage of Typical Price
typprice = ti.typprice(high, low, close)


## Example Calculation

datehighlowclosetypprice
2005-11-0182.1581.2981.5981.68
2005-11-0281.8980.6481.0681.20
2005-11-0383.0381.3182.8782.40
2005-11-0483.3082.6583.0082.98
2005-11-0783.8583.0783.6183.51
2005-11-0883.9083.1183.1583.39
2005-11-0983.3382.4982.8482.89
2005-11-1084.3082.3083.9983.53
2005-11-1184.8484.1584.5584.51
2005-11-1485.0084.1184.3684.49
2005-11-1585.9084.0385.5385.15
2005-11-1686.5885.3986.5486.17
2005-11-1786.9885.7686.8986.54
2005-11-1888.0087.1787.7787.65
2005-11-2187.8787.0187.2987.39

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