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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_fitdistrexp.wasp
Title produced by softwareMaximum-likelihood Fitting - Exponential Distribution
Date of computationSat, 25 Oct 2008 06:54:39 -0600
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2008/Oct/25/t1224939676ueqtr9bv6pg6dmq.htm/, Retrieved Wed, 22 May 2024 11:10:57 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=18709, Retrieved Wed, 22 May 2024 11:10:57 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact165

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
F       [Maximum-likelihood Fitting - Exponential Distribution] [QQ Plot (exponent...] [2008-10-25 12:54:39] [63db34dadd44fb018112addcdefe949f] [Current]
Feedback Forum
2008-10-31 15:00:13 [Matthieu Blondeau] [reply] 
Deze grafiek werd door de studente goed geïnterpreteerd maar ik vraag mij af een dergelijke vergelijking tussen 2 datsets hier veel nut heeft.
2008-11-02 13:54:08 [Ciska Tanghe] [reply] 
De student gebruikt hier een QQ-plot, waarbij er maar 1 tijdreeks wordt bekeken. Ik vraag me af of dit enig nut heeft en een verbetering van het model in Q3 is, aangezien op de grafiek maar 1 tijdreeks weergegeven wordt en deze niet vergeleken kan worden met andere.

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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
109,20
88,60
94,30
98,30
86,40
80,60
104,10
108,20
93,40
71,90
94,10
94,90
96,40
91,10
84,40
86,40
88,00
75,10
109,70
103,00
82,10
68,00
96,40
94,30
90,00
88,00
76,10
82,50
81,40
66,50
97,20
94,10
80,70
70,50
87,80
89,50
99,60
84,20
75,10
92,00
80,80
73,10
99,80
90,00
83,10
72,40
78,80
87,30
91,00
80,10
73,60
86,40
74,50
71,20
92,40
81,50
85,30
69,90
84,20
90,70
100,30

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R Server'Gwilym Jenkins' @ 72.249.127.135

\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 & 1 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ 72.249.127.135 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=18709&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]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=18709&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=18709&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 time1 seconds
R Server'Gwilym Jenkins' @ 72.249.127.135






ParameterEstimated ValueStandard Deviation
rate0.01150834826903120.00147349300554790

\begin{tabular}{lllllllll}
\hline
Parameter & Estimated Value & Standard Deviation \tabularnewline
rate & 0.0115083482690312 & 0.00147349300554790 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=18709&T=1

[TABLE]
[ROW][C]Parameter[/C][C]Estimated Value[/C][C]Standard Deviation[/C][/ROW]
[ROW][C]rate[/C][C]0.0115083482690312[/C][C]0.00147349300554790[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=18709&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=18709&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
rate0.01150834826903120.00147349300554790


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
Parameters (R input):
R code (references can be found in the software module):
library(MASS)
(f<-fitdistr(x, 'exponential'))
xlab <- paste('Exponential(rate=',round(f$estimate[[1]],2))
xlab <- paste(xlab,')')
bitmap(file='test2.png')
qqplot(qlnorm(ppoints(x), meanlog=f$estimate[[1]]), x, main='QQ plot (Exponential)', xlab=xlab )
grid()
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,'rate',header=TRUE)
a<-table.element(a,f$estimate[1])
a<-table.element(a,f$sd[1])
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable.tab')