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Author's title

Author

*Unverified author*

R Software Module

rwasp_fitdistrnorm.wasp

Title produced by software

Maximum-likelihood Fitting - Normal Distribution

Date of computation

Thu, 12 Nov 2009 07:26:43 -0700

Cite this page as follows

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2009/Nov/12/t1258036033cuipfok10s1oh7b.htm/, Retrieved Fri, 03 May 2024 23:57:35 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=56030, Retrieved Fri, 03 May 2024 23:57:35 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

130

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)

-     [Maximum-likelihood Fitting - Normal Distribution] [3/11/2009] [2009-11-02 22:18:38] [b98453cac15ba1066b407e146608df68]
-   PD    [Maximum-likelihood Fitting - Normal Distribution] [] [2009-11-12 14:26:43] [cb3e966d7bf80cd999a0432e97d174a7] [Current]

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Dataseries X:

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Histogram

Boxplots

2.97
3.04
3.12
3.21
3.34
3.45
3.74
4.02
4.24
4.87
5.62
6.02
5.98
5.89
5.76
5.58
5.39
5.19
5.16
5.2
5.25
5.26
5.21
5.18
5.13
5.03
5.01
4.87
4.86
4.82
4.69
4.65
4.61
4.47
4.37
4.29
4.2
4.19
4.09
3.88
3.87
3.74
3.61
3.43
3.29
3.18
3.07
3.02
2.97
2.98
3.01
3.06
3.12
3.16
3.19
3.21
3.27
3.36
3.45
3.52
3.58
3.62
3.5
3.43
3.41
3.48
3.63
3.76
3.8
3.72
3.67
3.58
3.47
3.43
3.55
3.65
3.7
3.7
3.93
4.15
4.24

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'Sir Ronald Aylmer Fisher' @ 193.190.124.24

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input & view raw input (R code)  \tabularnewline
Raw Output & view raw output of R engine  \tabularnewline
Computing time & 2 seconds \tabularnewline
R Server & 'Sir Ronald Aylmer Fisher' @ 193.190.124.24 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=56030&T=0

[TABLE]
[ROW][C]Summary of computational transaction[/C][/ROW]
[ROW][C]Raw Input[/C][C]view raw input (R code) [/C][/ROW]
[ROW][C]Raw Output[/C][C]view raw output of R engine [/C][/ROW]
[ROW][C]Computing time[/C][C]2 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Sir Ronald Aylmer Fisher' @ 193.190.124.24[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=56030&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=56030&T=0

As an alternative you can also use a QR Code:

The GUIDs for individual cells are displayed in the table below:

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'Sir Ronald Aylmer Fisher' @ 193.190.124.24

Parameter	Estimated Value	Standard Deviation
mean	4.05382716049383	0.094916285707583
standard deviation	0.854246571368247	0.0671159492688718

\begin{tabular}{lllllllll}
\hline
Parameter & Estimated Value & Standard Deviation \tabularnewline
mean & 4.05382716049383 & 0.094916285707583 \tabularnewline
standard deviation & 0.854246571368247 & 0.0671159492688718 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=56030&T=1

[TABLE]
[ROW][C]Parameter[/C][C]Estimated Value[/C][C]Standard Deviation[/C][/ROW]
[ROW][C]mean[/C][C]4.05382716049383[/C][C]0.094916285707583[/C][/ROW]
[ROW][C]standard deviation[/C][C]0.854246571368247[/C][C]0.0671159492688718[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=56030&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=56030&T=1

As an alternative you can also use a QR Code:

The GUIDs for individual cells are displayed in the table below:

Parameter	Estimated Value	Standard Deviation
mean	4.05382716049383	0.094916285707583
standard deviation	0.854246571368247	0.0671159492688718

Figure 1

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Postscript link

PDF link

Parameters (Session):

par1 = 12 ;

Parameters (R input):

par1 = 8 ; par2 = 0 ;

R code (references can be found in the software module):

library(MASS)
par1 <- as.numeric(par1)
if (par2 == '0') par2 = 'Sturges' else par2 <- as.numeric(par2)
x <- as.ts(x) #otherwise the fitdistr function does not work properly
r <- fitdistr(x,'normal')
r
bitmap(file='test1.png')
myhist<-hist(x,col=par1,breaks=par2,main=main,ylab=ylab,xlab=xlab,freq=F)
curve(1/(r$estimate[2]*sqrt(2*pi))*exp(-1/2*((x-r$estimate[1])/r$estimate[2])^2),min(x),max(x),add=T)
dev.off()
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Parameter',1,TRUE)
a<-table.element(a,'Estimated Value',1,TRUE)
a<-table.element(a,'Standard Deviation',1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'mean',header=TRUE)
a<-table.element(a,r$estimate[1])
a<-table.element(a,r$sd[1])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'standard deviation',header=TRUE)
a<-table.element(a,r$estimate[2])
a<-table.element(a,r$sd[2])
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable.tab')

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Figures (Output of Computation)

Input Parameters & R Code