Vector Radian Conversion

Technical Analysis Indicator: torad

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Function Prototype

/* Vector Radian Conversion */
/* Type: simple */
/* Input arrays: 1    Options: 0    Output arrays: 1 */
/* Inputs: real */
/* Options: none */
/* Outputs: radians */
int ti_torad_start(TI_REAL const *options);
int ti_torad(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.

Vector Radian Conversion converts an input array of degrees into an array of radians.

$$torad_{t} = input_{t} \cdot \frac{\pi}{180}$$

See Also

References

Example Usage

Calling From C

/* Example usage of Vector Radian Conversion */
/* Assuming that 'input' is a pre-loaded array of size 'in_size'. */
TI_REAL *inputs[] = {input};
TI_REAL options[] = {}; /* No options */
TI_REAL *outputs[1]; /* radians */

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

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

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

Calling From Lua (with Tulip Chart bindings)

-- Example usage of Vector Radian Conversion
radians = ti.torad(input)

Example Calculation

dateinputradians
2005-11-0181.591.42
2005-11-0281.061.42
2005-11-0382.871.45
2005-11-0483.001.45
2005-11-0783.611.46
2005-11-0883.151.45
2005-11-0982.841.45
2005-11-1083.991.47
2005-11-1184.551.48
2005-11-1484.361.47
2005-11-1585.531.49
2005-11-1686.541.51
2005-11-1786.891.52
2005-11-1887.771.53
2005-11-2187.291.52

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