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PLearn 0.1
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#include <AddMissingVMatrix.h>


Public Member Functions | |
| AddMissingVMatrix () | |
| Default constructor. | |
| virtual void | build () |
| Simply calls inherited::build() then build_(). | |
| virtual void | makeDeepCopyFromShallowCopy (CopiesMap &copies) |
| Transforms a shallow copy into a deep copy. | |
| virtual PP< Dictionary > | getDictionary (int col) const |
| Return the Dictionary object for a certain field, or a null pointer if there isn't one. | |
| virtual void | getValues (int row, int col, Vec &values) const |
| Gives the possible values for a certain field in the VMatrix. | |
| virtual void | getValues (const Vec &input, int col, Vec &values) const |
| Gives the possible values of a certain field (column) given the input. | |
| virtual string | getValString (int col, real val) const |
| Returns the string associated with value val for field# col. | |
| virtual real | getStringVal (int col, const string &str) const |
| Returns value associated with a string (or MISSING_VALUE if there's no association for this string). | |
| virtual string | classname () const |
| virtual OptionList & | getOptionList () const |
| virtual OptionMap & | getOptionMap () const |
| virtual RemoteMethodMap & | getRemoteMethodMap () const |
| virtual AddMissingVMatrix * | deepCopy (CopiesMap &copies) const |
Static Public Member Functions | |
| static string | _classname_ () |
| Declares name and deepCopy methods. | |
| static OptionList & | _getOptionList_ () |
| static RemoteMethodMap & | _getRemoteMethodMap_ () |
| static Object * | _new_instance_for_typemap_ () |
| static bool | _isa_ (const Object *o) |
| static void | _static_initialize_ () |
| static const PPath & | declaringFile () |
Public Attributes | |
| bool | add_missing_target |
| real | missing_prop |
| int | only_on_first |
| int32_t | seed |
| TVec< int > | missing_values_columns |
| Columns which will be filled with missing values. | |
Static Public Attributes | |
| static StaticInitializer | _static_initializer_ |
Protected Member Functions | |
| virtual void | getNewRow (int i, const Vec &v) const |
| Fill the vector 'v' with the content of the i-th row. | |
Static Protected Member Functions | |
| static void | declareOptions (OptionList &ol) |
| Declares this class' options. | |
Protected Attributes | |
| PP< PRandom > | random_gen |
Private Types | |
| typedef SourceVMatrix | inherited |
Private Member Functions | |
| void | build_ () |
| This does the actual building. | |
Definition at line 52 of file AddMissingVMatrix.h.
typedef SourceVMatrix PLearn::AddMissingVMatrix::inherited [private] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 57 of file AddMissingVMatrix.h.
| PLearn::AddMissingVMatrix::AddMissingVMatrix | ( | ) |
Default constructor.
Definition at line 52 of file AddMissingVMatrix.cc.
:
random_gen(new PRandom()),
add_missing_target(true),
missing_prop(0),
only_on_first(-1),
seed(-1)
{}
| string PLearn::AddMissingVMatrix::_classname_ | ( | ) | [static] |
Declares name and deepCopy methods.
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
| OptionList & PLearn::AddMissingVMatrix::_getOptionList_ | ( | ) | [static] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
| RemoteMethodMap & PLearn::AddMissingVMatrix::_getRemoteMethodMap_ | ( | ) | [static] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
| Object * PLearn::AddMissingVMatrix::_new_instance_for_typemap_ | ( | ) | [static] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
| StaticInitializer AddMissingVMatrix::_static_initializer_ & PLearn::AddMissingVMatrix::_static_initialize_ | ( | ) | [static] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
| void PLearn::AddMissingVMatrix::build | ( | ) | [virtual] |
Simply calls inherited::build() then build_().
Reimplemented from PLearn::SourceVMatrix.
Definition at line 100 of file AddMissingVMatrix.cc.
References PLearn::SourceVMatrix::build(), and build_().
Referenced by PLearn::add_missing().
{
// ### Nothing to add here, simply calls build_
inherited::build();
build_();
}


| void PLearn::AddMissingVMatrix::build_ | ( | ) | [private] |
This does the actual building.
Reimplemented from PLearn::SourceVMatrix.
Definition at line 110 of file AddMissingVMatrix.cc.
References PLearn::fast_exact_is_equal(), PLearn::TVec< T >::isEmpty(), missing_prop, missing_values_columns, PLERROR, random_gen, seed, PLearn::SourceVMatrix::setMetaInfoFromSource(), PLearn::SourceVMatrix::source, and PLearn::VMatrix::updateMtime().
Referenced by build().
{
updateMtime(source);
// Ensure we are not using both a missing values proportion and
// user-specified missing columns.
if (!fast_exact_is_equal(missing_prop, 0) &&
!missing_values_columns.isEmpty())
PLERROR("In AddMissingVMatrix::build_ - You may only use one of these "
"two options: 'missing_prop' or 'missing_values_columns'");
random_gen->manual_seed(seed);
setMetaInfoFromSource();
}


| string PLearn::AddMissingVMatrix::classname | ( | ) | const [virtual] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
| void PLearn::AddMissingVMatrix::declareOptions | ( | OptionList & | ol | ) | [static, protected] |
Declares this class' options.
Reimplemented from PLearn::SourceVMatrix.
Definition at line 74 of file AddMissingVMatrix.cc.
References add_missing_target, PLearn::OptionBase::buildoption, PLearn::declareOption(), PLearn::SourceVMatrix::declareOptions(), missing_prop, missing_values_columns, only_on_first, and seed.
{
declareOption(ol, "missing_prop", &AddMissingVMatrix::missing_prop, OptionBase::buildoption,
"Percentage of missing values.");
declareOption(ol, "only_on_first", &AddMissingVMatrix::only_on_first, OptionBase::buildoption,
"Only add missing values in the first 'only_on_first' samples (ignored if < 0).");
declareOption(ol, "seed", &AddMissingVMatrix::seed, OptionBase::buildoption,
"Random numbers seed.");
declareOption(ol, "missing_values_columns", &AddMissingVMatrix::missing_values_columns, OptionBase::buildoption,
"Columns which will be filled with missing values.");
declareOption(ol, "add_missing_target",
&AddMissingVMatrix::add_missing_target,
OptionBase::buildoption,
"Whether or not to add missing values in the target part.");
// Now call the parent class' declareOptions
inherited::declareOptions(ol);
}

| static const PPath& PLearn::AddMissingVMatrix::declaringFile | ( | ) | [inline, static] |
| AddMissingVMatrix * PLearn::AddMissingVMatrix::deepCopy | ( | CopiesMap & | copies | ) | const [virtual] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
| PP< Dictionary > PLearn::AddMissingVMatrix::getDictionary | ( | int | col | ) | const [virtual] |
Return the Dictionary object for a certain field, or a null pointer if there isn't one.
Reimplemented from PLearn::SourceVMatrix.
Definition at line 181 of file AddMissingVMatrix.cc.
References PLERROR, PLearn::SourceVMatrix::source, and PLearn::VMatrix::width_.
Fill the vector 'v' with the content of the i-th row.
v is assumed to be the right size.
Reimplemented from PLearn::SourceVMatrix.
Definition at line 127 of file AddMissingVMatrix.cc.
References add_missing_target, j, PLearn::TVec< T >::length(), missing_prop, MISSING_VALUE, missing_values_columns, n, only_on_first, random_gen, and PLearn::SourceVMatrix::source.
{
source->getRow(i, v);
if (only_on_first >= 0 && i >= only_on_first)
return;
int n = v.length();
if (missing_values_columns.length()>0)
{
for (int j = 0; j < missing_values_columns.length(); j++)
v[missing_values_columns[j]] = MISSING_VALUE;
}
else
{
for (int j = 0; j < n; j++) {
bool is_target = (j >= source->inputsize() &&
j < source->inputsize() + source->targetsize());
if ((add_missing_target || !is_target) &&
random_gen->uniform_sample() < missing_prop)
{
v[j] = MISSING_VALUE;
}
}
}
}

| OptionList & PLearn::AddMissingVMatrix::getOptionList | ( | ) | const [virtual] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
| OptionMap & PLearn::AddMissingVMatrix::getOptionMap | ( | ) | const [virtual] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
| RemoteMethodMap & PLearn::AddMissingVMatrix::getRemoteMethodMap | ( | ) | const [virtual] |
Reimplemented from PLearn::SourceVMatrix.
Definition at line 69 of file AddMissingVMatrix.cc.
Returns value associated with a string (or MISSING_VALUE if there's no association for this string).
Reimplemented from PLearn::VMatrix.
Definition at line 163 of file AddMissingVMatrix.cc.
References PLERROR, PLearn::SourceVMatrix::source, and PLearn::VMatrix::width_.
Returns the string associated with value val for field# col.
Or returns "" if no string is associated.
Reimplemented from PLearn::VMatrix.
Definition at line 172 of file AddMissingVMatrix.cc.
References PLERROR, PLearn::SourceVMatrix::source, and PLearn::VMatrix::width_.
Gives the possible values for a certain field in the VMatrix.
Reimplemented from PLearn::SourceVMatrix.
Definition at line 191 of file AddMissingVMatrix.cc.
References PLERROR, PLearn::SourceVMatrix::source, and PLearn::VMatrix::width_.
| void PLearn::AddMissingVMatrix::getValues | ( | const Vec & | input, |
| int | col, | ||
| Vec & | values | ||
| ) | const [virtual] |
Gives the possible values of a certain field (column) given the input.
Reimplemented from PLearn::SourceVMatrix.
Definition at line 200 of file AddMissingVMatrix.cc.
References PLERROR, PLearn::SourceVMatrix::source, and PLearn::VMatrix::width_.
| void PLearn::AddMissingVMatrix::makeDeepCopyFromShallowCopy | ( | CopiesMap & | copies | ) | [virtual] |
Transforms a shallow copy into a deep copy.
Reimplemented from PLearn::SourceVMatrix.
Definition at line 156 of file AddMissingVMatrix.cc.
References PLearn::deepCopyField(), PLearn::SourceVMatrix::makeDeepCopyFromShallowCopy(), missing_values_columns, and random_gen.
{
inherited::makeDeepCopyFromShallowCopy(copies);
deepCopyField(random_gen, copies);
deepCopyField(missing_values_columns, copies);
}

Reimplemented from PLearn::SourceVMatrix.
Definition at line 127 of file AddMissingVMatrix.h.
Definition at line 73 of file AddMissingVMatrix.h.
Referenced by declareOptions(), and getNewRow().
Definition at line 74 of file AddMissingVMatrix.h.
Referenced by build_(), declareOptions(), and getNewRow().
Columns which will be filled with missing values.
Definition at line 78 of file AddMissingVMatrix.h.
Referenced by PLearn::add_missing(), build_(), declareOptions(), getNewRow(), and makeDeepCopyFromShallowCopy().
Definition at line 75 of file AddMissingVMatrix.h.
Referenced by declareOptions(), and getNewRow().
PP<PRandom> PLearn::AddMissingVMatrix::random_gen [protected] |
Definition at line 61 of file AddMissingVMatrix.h.
Referenced by build_(), getNewRow(), and makeDeepCopyFromShallowCopy().
| int32_t PLearn::AddMissingVMatrix::seed |
Definition at line 76 of file AddMissingVMatrix.h.
Referenced by build_(), and declareOptions().
1.7.4