TTR (version 0.13-1)

EMV: Arms' Ease of Movement Value

Description

Arms' Ease of Movement Value (EMV) emphasizes days where the security moves easily and minimizes days where the security does not move easily. Developed by Richard W. Arms, Jr.

Usage

EMV(HL, volume, ma=list("SMA", n=9), vol.divisor=10000)

Arguments

HL

Object able to be coerced to a matrix, which contains a High-Low price series.

volume

Vector or matrix of volume observations corresponding to the HL object.

ma

A list whose first component is a string containing the moving average function name; additional parameters may also be specified as named components.

vol.divisor

An increment to make the results larger and easier to work with.

Value

• A matrix containing the columns:
• emv
  The ease of movement values.
• ma.emv
  The smoothed (as specified by ma) ease of movement values.

Details

The EMV is calculated by dividing the midpoint ([high + low]/2) move by the Box Ratio (volume divided by the high minus low).

References

The following site(s) were used to code/document this indicator: http://www.fmlabs.com/reference/ArmsEMV.htm http://www.equis.com/Customer/Resources/TAAZ/?c=3&p=51 http://linnsoft.com/tour/techind/arms.htm

See Also

See EMA, SMA, etc. for moving average options; and note Warning section.

Examples

data(ttrc)
  emv <- EMV(ttrc[,c("High","Low")], ttrc[,"Volume"])