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<div>Hi, (i&#39;m not good at Eng. sorry ... )</div>
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<blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;PADDING-LEFT:1ex" class="gmail_quote">
<div>I have a qustion of correlation significant test(function:rtest).</div>
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<div>I want to change the degree of freedom(df) which is already setted.</div>
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<div> I kowt that [rtest] funtion uses the t-value and df</div>
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<div>  tval   = r/<a href="https://www.ncl.ucar.edu/Document/Functions/Built-in/sqrt.shtml" target="_blank"><strong>sqrt</strong></a>((1.0-r^2)/(n-2))</div>
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<div>  df = n-2</div>
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<div>but, I want to change [df = n-2] into [my own degree of freedom.]  </div>
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<blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;PADDING-LEFT:1ex" class="gmail_quote">
<div>Is there any method to solve this problem?</div>
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<div>Thanks.</div></blockquote><br><br>