title: How can I get last value of STOCHRSI with Ta-Lib?
body: <p>I implemented it but it prints all.</p>
  <pre><code>print(ta.STOCHRSI(df[&quot;close&quot;], 14, 5, 3, 0)[-1])
  </code></pre>
  <pre><code>2022-04-20 17:00:00          NaN
  2022-04-20 18:00:00          NaN
  2022-04-20 19:00:00          NaN
  2022-04-20 20:00:00          NaN
  2022-04-20 21:00:00          NaN
                           ...    
  2022-04-28 20:00:00    79.700101
  2022-04-28 21:00:00     0.000000
  2022-04-28 22:00:00     0.000000
  2022-04-28 23:00:00    44.877738
  2022-04-29 00:00:00    65.792554
  Length: 200, dtype: float64
  </code></pre>
  <p>I just want to get recent value of STOCHRSI, just one float value. How can I get it?</p>
  <p>or if I want to get the avg of recent 3 values, How can I implement it?</p>