plotDataScatter {MOFA} | R Documentation

## Scatterplots of feature values against latent factors

### Description

Function to do a scatterplot of the feature(s) values against the latent factor values.

### Usage

    plotDataScatter(object, view, factor, features = 10, color_by = NULL,
      name_color = "", shape_by = NULL, name_shape = "",
      showMissing = TRUE)

### Arguments

`object` | a `MOFAmodel` object.
`view` | character vector with a view name, or numeric vector with the index of the view.
`factor` | character vector with a factor name, or numeric vector with the index of the factor.
`features` | if an integer, the total number of features to plot (10 by default). If a character vector, a set of manually-defined features.
`color_by` | specifies groups or values used to color the samples. This can be either: (a) a character giving the name of a feature, (b) a character giving the name of a covariate (only if using MultiAssayExperiment as input), or (c) a vector of the same length as the number of samples specifying discrete groups or continuous numeric values.
`name_color` | name for the color legend
`shape_by` | specifies groups or values used to shape the samples. This can be either: (a) a character giving the name of a feature present in the training data, (b) a character giving the name of a covariate (only if using MultiAssayExperiment as input), or (c) a vector of the same length as the number of samples specifying discrete groups.
`name_shape` | name for the shape legend
`showMissing` | logical indicating whether to show samples with missing values for the color or the shape. Default is TRUE.

### Details

One of the first steps for the annotation of a given factor is to visualise the corresponding loadings, using for example `plotWeights` or `plotTopWeights`. These functions display the top features that are driving the heterogeneity captured by a factor.
However, one might also be interested in visualising the coordinated heterogeneity in the input data, rather than looking at "abstract" weights.
This function generates scatterplots of features against factors (each dot is a sample), so that you can observe the association between them.
A similar function for doing heatmaps rather than scatterplots is `plotDataHeatmap`.

### Value

a scatterplot of featurea against a factor

### Examples

    # Load CLL data
    filepath <- system.file("extdata", "CLL_model.hdf5", package = "MOFAdata")
    MOFA_CLL <- loadModel(filepath)
    # plot scatter for top 5 features on factor 1 in the view mRNA:
    plotDataScatter(MOFA_CLL, view="mRNA", factor=1, features=5)
    # coloring by the IGHV status (features in Mutations view), not showing samples with missing IGHV:
    plotDataScatter(MOFA_CLL, view="mRNA", factor=1, features=5, color_by="IGHV", showMissing=FALSE)

[Package MOFA version 1.6.2 Index]