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Author's title

Author

*Unverified author*

R Software Module

rwasp_fitdistrnorm.wasp

Title produced by software

ML Fitting and QQ Plot- Normal Distribution

Date of computation

Tue, 08 Sep 2020 23:16:48 +0200

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/2020/Sep/08/t1599599824dry9c6yatfamlck.htm/, Retrieved Wed, 29 Apr 2026 03:13:37 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=319237, Retrieved Wed, 29 Apr 2026 03:13:37 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

405

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

-       [ML Fitting and QQ Plot- Normal Distribution] [] [2020-09-08 21:16:48] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Histogram

Boxplots

1.8%

4.9%

16.9%

-7.0%

4.3%

-7.2%

8.3%

9.8%

-2.2%

-0.5%

-5.8%

1.0%

-1.2%

3.8%

1.8%

1.9%

5.8%

2.6%

5.6%

2.1%

0.2%

-4.0%

1.3%

-1.6%

-2.9%

-0.3%

3.2%

0.9%

-2.6%

0.5%

-7.2%

0.1%

-1.3%

3.5%

-0.1%

-2.2%

3.6%

1.5%

0.2%

2.5%

3.4%

-0.4%

0.0%

2.6%

-0.7%

1.3%

-2.6%

-0.5%

-3.6%

8.4%

1.4%

-0.4%

-7.1%

0.1%

-7.3%

3.4%

-5.3%

7.9%

0.5%

3.4%

-0.1%

0.8%

0.0%

1.1%

0.0%

0.1%

0.0%

-0.2%

-0.8%

-3.0%

0.5%

0.0%

-0.5%

-1.4%

-1.3%

-0.8%

-0.3%

-1.0%

1.9%

3.4%

0.0%

4.7%

-0.7%

0.0%

0.0%

0.1%

2.0%

2.5%

-0.2%

-1.1%

-1.4%

1.4%

2.6%

-1.1%

1.1%

0.3%

3.4%

-1.6%

-0.2%

3.4%

-2.7%

0.0%

0.4%

0.0%

0.5%

-1.1%

-0.9%

-0.8%

-1.1%

0.1%

5.5%

5.3%

-1.4%

-0.1%

1.7%

3.0%

-3.4%

-2.6%

-0.3%

-0.4%

-0.3%

-0.4%

1.0%

0.5%

-0.8%

0.3%

2.7%

3.7%

5.1%

4.4%

10.6%

-1.3%

3.5%

-2.9%

2.3%

1.2%

0.9%

1.7%

-1.0%

-0.4%

3.6%

-4.5%

-7.7%

2.9%

0.2%

0.1%

0.6%

0.9%

3.6%

-3.4%

1.9%

0.3%

-1.4%

-0.6%

-2.0%

-1.4%

1.4%

-3.9%

0.9%

-0.2%

1.9%

3.0%

-0.6%

9.7%

-0.8%

-1.3%

-1.3%

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	0 seconds
R Server	Big Analytics Cloud Computing Center
R Framework error message	Warning: there are blank lines in the 'Data' field. Please, use NA for missing data - blank lines are simply deleted and are NOT treated as missing values.

\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 time0 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
R Framework error message & Warning: there are blank lines in the 'Data' field.
Please, use NA for missing data - blank lines are simply
 deleted and are NOT treated as missing values. \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319237&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]

0 seconds[/C][/ROW] [ROW]

R Server[/C]

Big Analytics Cloud Computing Center[/C][/ROW] [ROW]

R Framework error message[/C][C]

Warning: there are blank lines in the 'Data' field.
Please, use NA for missing data - blank lines are simply
 deleted and are NOT treated as missing values.

[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=319237&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319237&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	0 seconds
R Server	Big Analytics Cloud Computing Center
R Framework error message	Warning: there are blank lines in the 'Data' field. Please, use NA for missing data - blank lines are simply deleted and are NOT treated as missing values.

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)
library(car)
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')
print(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$estimate[2])^2),min(x),max(x),add=T)
dev.off()
bitmap(file='test3.png')
qqPlot(x,dist='norm',main='QQ plot (Normal) with confidence intervals')
grid()
dev.off()
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Parameter',1,TRUE)
a<-table.element(a,'Estimated Value',1,TRUE)
a<-table.element(a,'Standard Deviation',1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'mean',header=TRUE)
a<-table.element(a,r$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')

Free Statistics

Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code