ynbind | R Documentation |

`ynbind`

column binds a series of related yes/no variables,
allowing for a final argument `label`

used to label the panel
created for the group. `label`

s for individual variables are
collected into a vector attribute `"labels"`

for the result;
original variable names are used in place of labels for those variables
without labels. A positive response is taken to be ```
y, yes,
present
```

(ignoring case) or a `logical`

`TRUE`

value. By
default, the columns are sorted be ascending order or the overall
proportion of positives. A subsetting method is provided for objects of
class `"ynbind"`

.

`pBlock`

creates a matrix similarly labeled, from a general set of
variables (without special handling of binaries), and sets to `NA`

any observation not in `subset`

so that when that block of
variables is analyzed it will be only for that subset.

```
ynbind(..., label = deparse(substitute(...)),
asna = c("unknown", "unspecified"), sort = TRUE)
pBlock(..., subset=NULL, label = deparse(substitute(...)))
```

`...` |
a series of vectors |

`label` |
a label for the group, to be attached to the resulting
matrix as a |

`asna` |
a vector of character strings specifying levels that are
to be treated the same as |

`sort` |
set to |

`subset` |
subset criteria - either a vector of logicals or subscripts |

a matrix of class `"ynbind"`

or
`"pBlock"`

with `"label"`

and `"labels"`

attributes.
For `"pBlock"`

, factor input vectors will have values converted
to `character`

.

Frank Harrell

`summaryP`

```
x1 <- c('yEs', 'no', 'UNKNOWN', NA)
x2 <- c('y', 'n', 'no', 'present')
label(x2) <- 'X2'
X <- ynbind(x1, x2, label='x1-2')
X[1:3,]
pBlock(x1, x2, subset=2:3, label='x1-2')
```

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