FreeStatistics.org

Free Statistics

of Irreproducible Research!

Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_fitdistrnorm.wasp
Title produced by softwareMaximum-likelihood Fitting - Normal Distribution
Date of computationMon, 17 Oct 2011 15:05:57 -0400
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2011/Oct/17/t1318878370xrpnanm84byheqb.htm/, Retrieved Wed, 26 Aug 2026 22:46:02 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=131039, Retrieved Wed, 26 Aug 2026 22:46:02 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact397

Tree of Dependent Computations

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] [] [2011-10-17 19:05:57] [43f1c1fe5c2aaa4d7bd6f731e1a494da] [Current]
-    D      [Maximum-likelihood Fitting - Normal Distribution] [] [2011-10-17 19:14:01] [1dc3906a3b5a6ec06dc921f387100c9e]
-   PD      [Maximum-likelihood Fitting - Normal Distribution] [] [2011-10-17 19:18:49] [1dc3906a3b5a6ec06dc921f387100c9e]
Feedback Forum

Post a new message

Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
20
20
18
18
24
22
21
15
22
22
26
27
21
24
23
20
28
28
26
24
13
28
21
22
27
9
9
28
18
20
21
21
13
22
24
17
28
23
27
20
27
26
20
18
16
24
17
24
20
28
19
24
28
7
22
20
20
22
22
23
23
22
21
13
17
25
24
19
23
18
28
26
20
20
25
16
16
24
27
13
10
20
22
21
21
24
26
22
28
26
6
16
20
15
24
22
20
20
22
23
22
16
24
24
18
20
18
15
27
22
24
18
16
21
23
21
26
24
19
26
20
24
19
15
22
25
19
24
21
21
22
18
19
20
24
22
16
22
26
19
24
24
24
19
25
20
24
21
22
15
25
28
17
23
21
21
16
25
20
19
13
19

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time0 seconds
R Server'Gertrude Mary Cox' @ cox.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 & 0 seconds \tabularnewline
R Server & 'Gertrude Mary Cox' @ cox.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=131039&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]0 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Gertrude Mary Cox' @ cox.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=131039&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=131039&T=0

As an alternative you can also use a QR Code:  
QR Code


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

Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time0 seconds
R Server'Gertrude Mary Cox' @ cox.wessa.net






ParameterEstimated ValueStandard Deviation
mean21.12345679012350.338636983001819
standard deviation4.310145126740510.23945250704114

\begin{tabular}{lllllllll}
\hline
Parameter & Estimated Value & Standard Deviation \tabularnewline
mean & 21.1234567901235 & 0.338636983001819 \tabularnewline
standard deviation & 4.31014512674051 & 0.23945250704114 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=131039&T=1

[TABLE]
[ROW][C]Parameter[/C][C]Estimated Value[/C][C]Standard Deviation[/C][/ROW]
[ROW][C]mean[/C][C]21.1234567901235[/C][C]0.338636983001819[/C][/ROW]
[ROW][C]standard deviation[/C][C]4.31014512674051[/C][C]0.23945250704114[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=131039&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=131039&T=1

As an alternative you can also use a QR Code:  
QR Code


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

ParameterEstimated ValueStandard Deviation
mean21.12345679012350.338636983001819
standard deviation4.310145126740510.23945250704114


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 8 ; par2 = 0 ;
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')