@brandy 
To get value from another model in CodeIgniter, you can follow these steps:
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$this->load->model('Model_name');
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$value = $this->Model_name->method_name();  | 
Here is an example:
Controller:
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$this->load->model('User_model');
$user_name = $this->User_model->get_user_name();
$data['user_name'] = $user_name;
$this->load->view('view_name', $data);
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Model:
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public function get_user_name() {
    $user = $this->db->get('users')->row();
    return $user->name;
}
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View:
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<h1>Welcome, <?php echo $user_name; ?></h1>  | 
This is how you can get a value from another model in CodeIgniter.