transfer p value to z value
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Hello! I have p values (i.e. accuracy in %), how can I transfer these p values to corresponding Z values in standard normal distribution ? is there any function I can use?
for example, p = 0.95, Z = 1.645 in POZ conversion table.
Thanks a lot in advance!
best!
Arya
回答 (2 件)
David Hill
2019 年 6 月 20 日
If you have the Statistics and Machine Learning Toolbox the function is norminv(). If you don't, the documentation for the norminv function gives you enough information to write your own function.
z = norminv(.95);
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Star Strider
2019 年 6 月 20 日
If you do not have the Statistics and Machine Learning Toolbox, y9ou can use this anonymous function:
ZV = @(pv) -sqrt(2) * erfcinv(2*pv); % Equivalent to ‘norminv’
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