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Author

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R Software Module

rwasp_fitdistrnorm.wasp

Title produced by software

Maximum-likelihood Fitting - Normal Distribution

Date of computation

Tue, 16 Oct 2012 07:35:11 -0400

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/2012/Oct/16/t1350387323ld8y6kubed04s3j.htm/, Retrieved Tue, 30 Apr 2024 13:02:22 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=178603, Retrieved Tue, 30 Apr 2024 13:02:22 +0000

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Estimated Impact

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

-     [Maximum-likelihood Fitting - Normal Distribution] [Intrinsic Motivat...] [2010-10-12 11:57:21] [b98453cac15ba1066b407e146608df68]
- R PD  [Maximum-likelihood Fitting - Normal Distribution] [WS3 - Question 3(1)] [2012-10-16 10:56:45] [ed1fdf85d7cd4cf9cd22a44dec7a2ab7]
-   PD    [Maximum-likelihood Fitting - Normal Distribution] [] [2012-10-16 11:32:23] [ed1fdf85d7cd4cf9cd22a44dec7a2ab7]
-    D        [Maximum-likelihood Fitting - Normal Distribution] [] [2012-10-16 11:35:11] [73032bb7ab3591a95ced5a483893ad29] [Current]
-    D          [Maximum-likelihood Fitting - Normal Distribution] [] [2012-10-16 11:37:48] [ed1fdf85d7cd4cf9cd22a44dec7a2ab7] 
-    D            [Maximum-likelihood Fitting - Normal Distribution] [] [2012-10-16 11:39:07] [ed1fdf85d7cd4cf9cd22a44dec7a2ab7] 

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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	'George Udny Yule' @ yule.wessa.net

\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 & 'George Udny Yule' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=178603&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]'George Udny Yule' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=178603&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=178603&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	'George Udny Yule' @ yule.wessa.net

Parameter	Estimated Value	Standard Deviation
mean	5.14043209876543	0.0819193411487205
standard deviation	1.0426629894587	0.0579257216365945

\begin{tabular}{lllllllll}
\hline
Parameter & Estimated Value & Standard Deviation \tabularnewline
mean & 5.14043209876543 & 0.0819193411487205 \tabularnewline
standard deviation & 1.0426629894587 & 0.0579257216365945 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=178603&T=1

[TABLE]
[ROW][C]Parameter[/C][C]Estimated Value[/C][C]Standard Deviation[/C][/ROW]
[ROW][C]mean[/C][C]5.14043209876543[/C][C]0.0819193411487205[/C][/ROW]
[ROW][C]standard deviation[/C][C]1.0426629894587[/C][C]0.0579257216365945[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=178603&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=178603&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	5.14043209876543	0.0819193411487205
standard deviation	1.0426629894587	0.0579257216365945

Figure 1

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Parameters (Session):

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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Input Parameters & R Code