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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

Tue, 18 Dec 2007 14:13:48 -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/2007/Dec/18/t1198011403tjz6njwu356sn0b.htm/, Retrieved Sat, 04 May 2024 14:53:34 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=4617, Retrieved Sat, 04 May 2024 14:53:34 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

251

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

-       [Maximum-likelihood Fitting - Normal Distribution] [Paper - Normal di...] [2007-12-18 21:13:48] [e51d7ab0e549b3dc96ac85a81d9bd259] [Current]
-   PD    [Maximum-likelihood Fitting - Normal Distribution] [Paper - Normal di...] [2008-12-28 14:33:10] [c29178f7f550574a75dc881e636e0923] 

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2.61072861587664
-1.64151512748939
-5.53397130675664
-11.8684507675144
4.92307208512571
6.26712823161773
-2.76872599233773
-3.56312607919330
3.84610531691476
3.92414528449639
-2.60085355983359
-4.52415672464345
0.712363410392165
-3.83027221556495
1.64369314986718
5.1373157082981
-4.77891279135298
-0.543348509239105
10.7317442356705
-7.66239213978311
-6.30680235597392
-7.34729981849825
0.617800822224108
2.85035364935883
1.77740032934145
-3.90118201853709
4.6323076169406
-1.74030963922678
-3.27944132766354
1.09665938498306
7.05463838922537
2.50775091630909
-4.16477564673257
-3.97156359496111
-4.61876313016936
-1.80864980481552
-0.236907168104795
-3.15041173459177
3.37110805438328
-2.30793345402054
2.737897737493
-1.58208769004317
-2.47767476900079
0.167763916859109
1.76974633325578
0.440544884754961
-2.45008188331654
4.47063460393658
-6.94943202424074
8.91682112964061
-0.296516314946182
2.40580572796091
-1.75212202583747
5.39306701500983
6.30609401440519
7.82784320522538
-2.60554495964265
1.29269020570918
1.09083902934299
0.640809564220057
-0.654553416503333
3.45822878067978
1.27021269162882
-1.88415061828193
0.908614567669563

Summary of compuational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	1 seconds
R Server	'Gwilym Jenkins' @ 72.249.127.135

\begin{tabular}{lllllllll}
\hline
Summary of compuational transaction \tabularnewline
Raw Input & view raw input (R code)  \tabularnewline
Raw Output & view raw output of R engine  \tabularnewline
Computing time & 1 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ 72.249.127.135 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=4617&T=0

[TABLE]
[ROW][C]Summary of compuational 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]1 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Gwilym Jenkins' @ 72.249.127.135[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=4617&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=4617&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 compuational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	1 seconds
R Server	'Gwilym Jenkins' @ 72.249.127.135

Parameter	Estimated Value	Standard Deviation
mean	1.55255249094911e-16	0.533364435723322
standard deviation	4.30012155457724	0.377145609343698

\begin{tabular}{lllllllll}
\hline
Parameter & Estimated Value & Standard Deviation \tabularnewline
mean & 1.55255249094911e-16 & 0.533364435723322 \tabularnewline
standard deviation & 4.30012155457724 & 0.377145609343698 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=4617&T=1

[TABLE]
[ROW][C]Parameter[/C][C]Estimated Value[/C][C]Standard Deviation[/C][/ROW]
[ROW][C]mean[/C][C]1.55255249094911e-16[/C][C]0.533364435723322[/C][/ROW]
[ROW][C]standard deviation[/C][C]4.30012155457724[/C][C]0.377145609343698[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=4617&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=4617&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	1.55255249094911e-16	0.533364435723322
standard deviation	4.30012155457724	0.377145609343698

Figure 1

PNG link

Postscript link

PDF link

Parameters (Session):

par1 = 8 ; par2 = 10 ;

Parameters (R input):

par1 = 8 ; par2 = 10 ;

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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Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code