Weighted Close Price

Function Prototype

/* Weighted Close Price */
/* Type: overlay */
/* Input arrays: 3    Options: 0    Output arrays: 1 */
/* Inputs: high, low, close */
/* Options: none */
/* Outputs: wcprice */
int ti_wcprice_start(TI_REAL const *options);
int ti_wcprice(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 weighted close price indicator calculates the mean of the high, low, and close of a bar, but the close price is weighted to count for double.

$$wcprice_{t} = \frac{high_{t}+low_{t}+2 close_{t}}{4}$$

Example Usage

Calling From C

/* Example usage of Weighted Close 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]; /* wcprice */

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

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

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


Calling From Lua (with Tulip Chart bindings)

-- Example usage of Weighted Close Price
wcprice = ti.wcprice(high, low, close)


Example Calculation

datehighlowclosewcprice
2005-11-0182.1581.2981.5981.66
2005-11-0281.8980.6481.0681.16
2005-11-0383.0381.3182.8782.52
2005-11-0483.3082.6583.0082.99
2005-11-0783.8583.0783.6183.54
2005-11-0883.9083.1183.1583.33
2005-11-0983.3382.4982.8482.88
2005-11-1084.3082.3083.9983.65
2005-11-1184.8484.1584.5584.52
2005-11-1485.0084.1184.3684.46
2005-11-1585.9084.0385.5385.25
2005-11-1686.5885.3986.5486.26
2005-11-1786.9885.7686.8986.63
2005-11-1888.0087.1787.7787.68
2005-11-2187.8787.0187.2987.37

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