Examples with StringColumn tech.tablesaw.api.StringColumn used on opensource projects

Example 11 with StringColumn

use of tech.tablesaw.api.StringColumn in project symja_android_library by axkr.

the class StringMapFunctions method lowerCase.

default StringColumn lowerCase() {
    StringColumn newColumn = StringColumn.create(name() + "[lcase]");
    for (int r = 0; r < size(); r++) {
        String value = getString(r);
        newColumn.append(value.toLowerCase());
    }
    return newColumn;
}

Example 12 with StringColumn

use of tech.tablesaw.api.StringColumn in project symja_android_library by axkr.

the class StringMapFunctions method replaceAll.

/**
 * Creates a new column, replacing each string in this column with a new string formed by
 * replacing any substring that matches the regex
 *
 * @param regexArray the regex array to replace
 * @param replacement the replacement array
 * @return the new column
 */
default StringColumn replaceAll(String[] regexArray, String replacement) {
    StringColumn newColumn = StringColumn.create(name() + "[repl]", this.size());
    for (int r = 0; r < size(); r++) {
        String value = getString(r);
        for (String regex : regexArray) {
            value = value.replaceAll(regex, replacement);
        }
        newColumn.set(r, value);
    }
    return newColumn;
}

Example 13 with StringColumn

use of tech.tablesaw.api.StringColumn in project symja_android_library by axkr.

the class StringMapFunctions method trim.

default StringColumn trim() {
    StringColumn newColumn = StringColumn.create(name() + "[trim]");
    for (int r = 0; r < size(); r++) {
        String value = getString(r);
        newColumn.append(value.trim());
    }
    return newColumn;
}

Example 14 with StringColumn

use of tech.tablesaw.api.StringColumn in project symja_android_library by axkr.

the class StringMapFunctions method padEnd.

default StringColumn padEnd(int minLength, char padChar) {
    StringColumn newColumn = StringColumn.create(name() + "[pad]");
    for (int r = 0; r < size(); r++) {
        String value = getString(r);
        newColumn.append(Strings.padEnd(value, minLength, padChar));
    }
    return newColumn;
}

Example 15 with StringColumn

use of tech.tablesaw.api.StringColumn in project symja_android_library by axkr.

the class StringMapFunctions method tokenizeAndSort.

/**
 * Splits on Whitespace and returns the lexicographically sorted result.
 *
 * @return a {@link StringColumn}
 */
default StringColumn tokenizeAndSort() {
    StringColumn newColumn = StringColumn.create(name() + "[sorted]", this.size());
    for (int r = 0; r < size(); r++) {
        String value = getString(r);
        Splitter splitter = Splitter.on(CharMatcher.whitespace());
        splitter = splitter.trimResults();
        splitter = splitter.omitEmptyStrings();
        List<String> tokens = new ArrayList<>(splitter.splitToList(value));
        Collections.sort(tokens);
        value = String.join(" ", tokens);
        newColumn.set(r, value);
    }
    return newColumn;
}