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_fitdistrchisq1.wasp
Title produced by softwareMaximum-likelihood Fitting - Chi-squared Distribution
Date of computationTue, 21 Nov 2017 15:01:02 +0100
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2017/Nov/21/t1511272886tw6xhoy21yohgrj.htm/, Retrieved Sat, 18 May 2024 10:48:29 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=308145, Retrieved Sat, 18 May 2024 10:48:29 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact121

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 - Chi-squared Distribution] [Chi squared inten...] [2017-11-21 14:01:02] [1fb90e819e5b19aec9e872ea972cd63e] [Current]
Feedback Forum

Post a new message

Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
7
8
8
10
8
9
8
10
7
10
8
8
6
7
9
9
8
8
10
7
7
7
6
9
7
8
10
9
8
8
10
8
4
6
7
7
3
8
8
6
10
8
4
8
7
6
9
10
9
7
10
7
10
9
7
10
8
8
6
9
7
8
8
9
5
9
6
8
10
7
5
4
9
10
8
6
6
9
3
7
9
7
8
9
9
8
9
6
7
8
7
9
9
5
6
8
10
5
8
8
10
7
9
8
8
10
9
9
6
8
5
3
6
6
10
9
9
5
6
7
8
9
3
5
5
9
10
7
8
6
5
8
7
5
6
10
10
6
4
8
5
7
10
8
7
2
7
9
8
5
8
6
7
10
8
10
9
8
10
4
6
9
4
6
7
9
8
6
4
8
8
9
6
5
5
8
8
9
7
9
8
6
7
8
8
7
7
8
8
9
9
9
8
2
8
8
8
7
10
8
10
5
4
10
8
7
5
7
9
8
8
2
9
8
5
7
8
7
5
10
6
6
5
7
8
8
4
9
4
10
6
6
8
8
8
8
8
8
7
7
8
10
10
3
8
2
4
4
9
10
6
10
10
3
9
9
6
5
4
4
6
6
8
8
5
7
6
10
8
8
9
5
10
8
9
8
7
10
10
9
4
4
8
9
10
8
5
10
8
7
8
8
9
8
6
8
8
5
9
8
8
8
6
6
9
8
9
10
8
8
7
7
10
8
7
10
7
7
9
9
8
6
8
9
2
6
8
8
7
8
6
10
10
10
8
8
7
10
5
3
2
3
4
2
6
8
8
5
10
9
8
9
8
5
7
9
8
4
7
8
7
7
9
6
7
4
6
10
9
10
8
4
8
5
8
9
8
4
8
10
6
7
10
9
8
3
8
7
7
8
8
7
7
9
9
9
4
6
6
6
8
3
8
8
6
10
2
9
6
6
5
4
7
5
8
6
9
6
4
7
2
8
9
6
5
7
8
4
9
9
9
7
5
7
9
8
6
9
8
7
7
7
8
10
6
6

Tables (Output of Computation)





Summary of computational transaction
Raw Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time3 seconds
R ServerBig Analytics Cloud Computing Center

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input view raw input (R code)  \tabularnewline
Raw Outputview raw output of R engine  \tabularnewline
Computing time3 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=308145&T=0

[TABLE]
[ROW]
Summary of computational transaction[/C][/ROW] [ROW]Raw Input[/C] view raw input (R code) [/C][/ROW] [ROW]Raw Output[/C]view raw output of R engine [/C][/ROW] [ROW]Computing time[/C]3 seconds[/C][/ROW] [ROW]R Server[/C]Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=308145&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=308145&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 Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time3 seconds
R ServerBig Analytics Cloud Computing Center






ParameterEstimated ValueStandard Deviation
df7.982874452070280.177547197126144

\begin{tabular}{lllllllll}
\hline
Parameter & Estimated Value & Standard Deviation \tabularnewline
df & 7.98287445207028 & 0.177547197126144 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=308145&T=1

[TABLE]
[ROW][C]Parameter[/C][C]Estimated Value[/C][C]Standard Deviation[/C][/ROW]
[ROW][C]df[/C][C]7.98287445207028[/C][C]0.177547197126144[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=308145&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=308145&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
df7.982874452070280.177547197126144


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 1 ; par2 = 2 ; par3 = TRUE ;
Parameters (R input):
R code (references can be found in the software module):
library(MASS)
library(car)
chii <- x
chi_df <- fitdistr(chii,'chi-squared',start=list(df=3), method='Brent',lower=0.1,upper=100)
chi_k <- chi_df[[1]][1]
bitmap(file='test1.png')
chi_hist <- hist(chii,breaks=50,col='gray',freq=FALSE,main='Histogram scaled to density',xlab='x')
curve(dchisq(x,df=chi_k),add=TRUE,col='red')
dev.off()
f<-chi_df
f$estimate
f$sd
xlab <- paste('Chisq(df = ',round(f$estimate[[1]],2),sep='')
xlab <- paste(xlab,')',sep='')
xlab
bitmap(file='test2.png')
qqPlot(x, dist='chisq', df=f$estimate[[1]], ncp=0, main='QQ plot (Chi-squared 1 param.)', 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,'df',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')