R: Accessor function for the 'mim' information in a mRMRe.Data,...

mim {mRMRe} | R Documentation

## Accessor function for the 'mim' information in a mRMRe.Data, mRMRe.Filter and mRMRe.Network object

### Description

In both mRMRe.Filter and mRMRe.Network objects, a sparse mutual information matrix is computed for the mRMRe procedure and this lazy-evaluated matrix is returned. In the context of a a mRMRe.Data 'mim', the full pairwise mutual information matrix is computed and returned.

### Usage

    ## S4 method for signature 'mRMRe.Data'
    mim(object, prior_weight, continuous_estimator, outX, bootstrap_count)
    ## S4 method for signature 'mRMRe.Filter'
    mim(object, method)
    ## S4 method for signature 'mRMRe.Network'
    mim(object)

### Arguments

`object` | a `mRMRe.Data, mRMRe.Filter or mRMRe.Network` object.
`prior_weight` | a numeric value [0,1] of indicating the impact of priors (mRMRe.Data only).
`continuous_estimator` | an estimator of the mutual information between features: either "pearson", "spearman", "kendall", "frequency" (mRMRe.Data only).
`outX` | a boolean used in the concordance index estimator to keep or throw out ties (mRMRe.Data only).
`bootstrap_count` | an integer indicating the number of bootstrap resampling used in estimation (mRMRe.Data only).
`method` | either "mi" or "cor"; the latter will return the correlation coefficients (rho) while the former will return the mutual information (-0.5 * log(1 - (rho^2))).

### Author(s)

Nicolas De Jay, Simon Papillon-Cavanagh, Benjamin Haibe-Kains

### Examples

    set.thread.count(2)
    data(cgps)
    feature_data <- mRMR.data(data =  data.frame(cgps.ge))

    # Calculate the pairwise mutual information matrix
    mim(feature_data)
    filter <- mRMR.classic("mRMRe.Filter", data = feature_data, target_indices = 3:5,
    						feature_count = 2)

    # Obtain the sparse (lazy-evaluated) mutual information matrix.
    mim(filter)

[Package mRMRe version 2.0.9 Index]