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+--- Thread: (11C) The Four Means (/thread-11627.html)
(11C) The Four Means - Eddie W. Shore - 10-21-2018 08:27 PM
The following program uses the statistical registers to calculate four types of mean:
Arithmetic Mean: μ = Σx / n
Harmonic Mean: HM = n / Σ(1/x)
Geometric Mean: GM = (Πx) ^ (1/n)
Root Mean Square: RMS = √(Σx^2 / n)
The HP 11C uses the following registers in statistical analysis. Be sure to clear registers by pressing [ f ] [ x<>y ] (CLEAR REG) before beginning.
R0 = n
R1 = Σx
R2 = Σx^2
R3 = Σy
R4 = Σy^2
R5 = Σxy
LBL A: Enter data
LBL B: Analysis: μ [R/S], HM [R/S], GM [R/S], RMS
HP 11C Program: The Four Means
Code:
001 42, 21, 11 LBL A
002 49 Σ+
003 43, 36 LAST x
004 44, 20, 7 STO× 7
005 15 1/x
006 44, 40, 6 STO+ 6
007 43, 32 RTN
008 42, 21, 12 LBL B
009 43, 0 x-bar
010 32 R/S
011 45, 6 RCL 6
012 15 1/x
013 45, 0 RCL 0
014 20 *
015 31 R/S
016 45, 7 RCL 7
017 45, 0 RCL 0
018 15 1/x
019 14 y^x
020 31 R/S
021 45, 2 RCL 2
022 45, 0 RCL 0
023 10 ÷
024 11 √
025 43, 32 RTNLink to blog entry: https://edspi31415.blogspot.com/2018/10/hp-11c-and-emulators-four-means.html
RE: (11C) The Four Means - Carsen - 10-22-2018 01:47 AM
Good work Eddie! I had a lot of fun with your program for finding the 4 different means and I can see you put a lot of work into your blog. It's like a form of retreat for me.
I ran your program and I got every mean except the geometric mean. I checked all my inputs as well as checked my program for any errors and detected none. After entering your example into my 11C emulator, my register 7 has a 0.0000 in it, which leads me to believe that the STO * 7 is not working as intended.
RE: (11C) The Four Means - Eddie W. Shore - 10-22-2018 12:30 PM
(10-22-2018 01:47 AM)Carsen Wrote: Good work Eddie! I had a lot of fun with your program for finding the 4 different means and I can see you put a lot of work into your blog. It's like a form of retreat for me.
I ran your program and I got every mean except the geometric mean. I checked all my inputs as well as checked my program for any errors and detected none. After entering your example into my 11C emulator, my register 7 has a 0.0000 in it, which leads me to believe that the STO * 7 is not working as intended.
I forgot to say store 1 in register 7 first before running the program. Thanks for reminding me!