vidente: vidente: A package for parsing and preprocessing SEER data.
In mribeirodantas/vidente: Collection of functions to work with SEER Database
Description
Parsing data
Preprocessing data
Description
The vidente package provides two categories of important functions.
Functions to parse SEER data and functions to preprocess it.
Parsing data
The buildSEERParser function builds parsing instructions based on the
instructions in the downloaded folder (.sas file) or in the dictionary file
exported from SEER*Stat software.
The readSEER function reads the SEER data from ASCII text files
downloaded from SEER website or exported from SEER*Stat software based on
the instructions provided in the dictionary (.dic) or .sas file.
The listPrimarySites function provides a list of keywords recognized
recognized as primary site names in the terminology adopted by SEER so that
you know what primary sites you can provide as the primary_site parameter
for the readSEER function.
Preprocessing data
The plotHistNA function plots a histogram of the proportion of NA
values for every feature in the dataframe.
The removeFullNAFeatures function removes features whose all values
are NA (or along with some additional NA value such as "Blank(s)", as some
datasets exported from SEER*Stat software).
The findSingleValueFeatures function finds features with an unique
value for all rows in the dataframe. This can help you find features that
can be removed for they only add overhead to the analysis.
The getNormalizedEntropy function calculates the normalized entropy
by dividing the entropy by the information length (number of unique possible
values by feature). This ratio is also called metric entropy and is a measure
of randomness of the information.
mribeirodantas/vidente documentation built on May 15, 2019, 4:47 p.m.
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Description Parsing data Preprocessing data
Description
The vidente package provides two categories of important functions. Functions to parse SEER data and functions to preprocess it.
Parsing data
The buildSEERParser function builds parsing instructions based on the instructions in the downloaded folder (.sas file) or in the dictionary file exported from SEER*Stat software.
The readSEER function reads the SEER data from ASCII text files downloaded from SEER website or exported from SEER*Stat software based on the instructions provided in the dictionary (.dic) or .sas file.
The listPrimarySites function provides a list of keywords recognized recognized as primary site names in the terminology adopted by SEER so that you know what primary sites you can provide as the primary_site parameter for the readSEER function.
Preprocessing data
The plotHistNA function plots a histogram of the proportion of NA values for every feature in the dataframe.
The removeFullNAFeatures function removes features whose all values are NA (or along with some additional NA value such as "Blank(s)", as some datasets exported from SEER*Stat software).
The findSingleValueFeatures function finds features with an unique value for all rows in the dataframe. This can help you find features that can be removed for they only add overhead to the analysis.
The getNormalizedEntropy function calculates the normalized entropy by dividing the entropy by the information length (number of unique possible values by feature). This ratio is also called metric entropy and is a measure of randomness of the information.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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