lubuntu.me/plugins/wp-statistics/includes/settings/tabs/wps-access-level.php

<?php
global $wp_roles;

$role_list = $wp_roles->get_names();

if ( $wps_nonce_valid ) {

	$wps_option_list = array_merge( $wps_option_list, array( 'wps_read_capability', 'wps_manage_capability' ) );

	foreach ( $wps_option_list as $option ) {
		$new_option = str_replace( "wps_", "", $option );

		if ( array_key_exists( $option, $_POST ) ) {
			$value = $_POST[ $option ];
		} else {
			$value = '';
		}
		$WP_Statistics->store_option( $new_option, $value );
	}
}

?>

    <table class="form-table">
        <tbody>
        <tr valign="top">
            <th scope="row" colspan="2"><h3><?php _e( 'Access Levels', 'wp-statistics' ); ?></h3></th>
        </tr>
		<?php
		global $wp_roles;

		$role_list = $wp_roles->get_names();

		foreach ( $wp_roles->roles as $role ) {

			$cap_list = $role['capabilities'];

			foreach ( $cap_list as $key => $cap ) {
				if ( substr( $key, 0, 6 ) != 'level_' ) {
					$all_caps[ $key ] = 1;
				}
			}
		}

		ksort( $all_caps );

		$read_cap    = $WP_Statistics->get_option( 'read_capability', 'manage_options' );
		$option_list = '';

		foreach ( $all_caps as $key => $cap ) {
			if ( $key == $read_cap ) {
				$selected = " SELECTED";
			} else {
				$selected = "";
			}
			$option_list .= "<option value='{$key}'{$selected}>{$key}</option>";
		}
		?>
        <tr valign="top">
            <th scope="row">
                <label for="wps_read_capability"><?php _e(
						'Required user level to view WP Statistics',
						'wp-statistics'
					) ?>:</label>
            </th>
            <td>
                <select dir="ltr" id="wps_read_capability" name="wps_read_capability"><?php echo $option_list; ?></select>
            </td>
        </tr>

		<?php
		$manage_cap = $WP_Statistics->get_option( 'manage_capability', 'manage_options' );

		foreach ( $all_caps as $key => $cap ) {
			if ( $key == $manage_cap ) {
				$selected = " SELECTED";
			} else {
				$selected = "";
			}
			$option_list .= "<option value='{$key}'{$selected}>{$key}</option>";
		}
		?>
        <tr valign="top">
            <th scope="row">
                <label for="wps_manage_capability"><?php _e(
						'Required user level to manage WP Statistics',
						'wp-statistics'
					) ?>:</label>
            </th>
            <td>
                <select dir="ltr" id="wps_manage_capability" name="wps_manage_capability"><?php echo $option_list; ?></select>
            </td>
        </tr>

        <tr valign="top">
            <th scope="row" colspan="2">
                <p class="description"><?php echo sprintf(
						__(
							'See the %sWordPress Roles and Capabilities page%s for details on capability levels.',
							'wp-statistics'
						),
						'<a target=_blank href="http://codex.wordpress.org/Roles_and_Capabilities">',
						'</a>'
					); ?></p>

                <p class="description"><?php echo __(
						'Hint: manage_network = Super Admin Network, manage_options = Administrator, edit_others_posts = Editor, publish_posts = Author, edit_posts = Contributor, read = Everyone.',
						'wp-statistics'
					); ?></p>

                <p class="description"><?php echo __(
						'Each of the above casscades the rights upwards in the default WordPress configuration.  So for example selecting publish_posts grants the right to Authors, Editors, Admins and Super Admins.',
						'wp-statistics'
					); ?></p>

                <p class="description"><?php echo sprintf(
						__(
							'If you need a more robust solution to delegate access you might want to look at %s in the WordPress plugin directory.',
							'wp-statistics'
						),
						'<a href="http://wordpress.org/plugins/capability-manager-enhanced/" target=_blank>Capability Manager Enhanced</a>'
					); ?></p>
            </th>
        </tr>

        </tbody>
    </table>

<?php submit_button( __( 'Update', 'wp-statistics' ), 'primary', 'submit' );