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Experts Exchange > Topics > Statistical Packages
Statistical Packages
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Statistical packages are software titles, such as JMP and GNU Octave, and programming languages, such as MATLAB, R and SAS, that are used to discover, explore and analyze data and suggest useful conclusions, either to learn something unexpected or to confirm a hypothesis. The field includes the design and analysis of techniques to give approximate but accurate solutions to hard problems in statistics, econometrics, time-series, optimization and 2D- and 3D-visualization. Data analysis has multiple facets and approaches, encompassing diverse techniques under a variety of names, in different business, science, and social science domains.
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I ran into a problem in R Studio. I am trying to run a t-test and it says "grouping data must have exactly 2 levels". Anyone know how to do this t-test with our values? We are trying to use bar charts showing means with error bars by presenting the results in Excel. Also need to know how to segment results using ANOVA.
rstudio.png
rstudio.png
Difficulty with one DC in a multi-site AD setup - Naming Context is in the process of being removed or is not replicated from the specified server
It appears that syncing FROM the master DC (schema, FSMO roles holder) TO the out-of-sync DC works without error, however the receiving DC cannot initiate a sync via GUI in AD Sites and Services nor can it via repadmin /replicate.
Promoted another server in the remote site to DC and was able to successfully get it working, so WAN / VPN / DNS appears to be working as expected.
Is there a way I can force the sync From the main to the out-of-sync DC and get it to pick back up again?
It appears that syncing FROM the master DC (schema, FSMO roles holder) TO the out-of-sync DC works without error, however the receiving DC cannot initiate a sync via GUI in AD Sites and Services nor can it via repadmin /replicate.
Promoted another server in the remote site to DC and was able to successfully get it working, so WAN / VPN / DNS appears to be working as expected.
Is there a way I can force the sync From the main to the out-of-sync DC and get it to pick back up again?
Hi there.
I have trouble how to do this in STATA: I have a dataset with response (BOR) for the patients. The variable BOR can be CR, PR, SD, PD or NE. Each patient can be in either arm A or B. I need to make a table in STATA with the distribution of BOR on arm A and B, and I also need to calculate a p-value (log-rank) and Hazard ratio for each value of BOR.
Anyone who can tell me how to do this in STATA? If not STATA, when maybe the codes in an altertative statistics software? It's probably very much alike.
Thank you in advance.
Best regards
Ulrich
I have trouble how to do this in STATA: I have a dataset with response (BOR) for the patients. The variable BOR can be CR, PR, SD, PD or NE. Each patient can be in either arm A or B. I need to make a table in STATA with the distribution of BOR on arm A and B, and I also need to calculate a p-value (log-rank) and Hazard ratio for each value of BOR.
Anyone who can tell me how to do this in STATA? If not STATA, when maybe the codes in an altertative statistics software? It's probably very much alike.
Thank you in advance.
Best regards
Ulrich
Are there any good machine learning libraries for .NET that may make it an alternative to Python and R? I've heard of ML.NET, but am not sure how good it is and how committed Microsoft are to it.
I am trying to find out a task that automatically starts an application when a user login to the computer running Windows Server 2012 R.
But I do not where it is located. With the Event Viewer, will we be able to find out how/where the task start from?
But I do not where it is located. With the Event Viewer, will we be able to find out how/where the task start from?
Hi Experts!
I am running into an error when using CPYFRMIMPF and numerics. When I run the CPYFRMIMPF command I get these errors.. The copy did not complete for reason code 9. When I have the DDS fields all alpha numeric it works.
This is my CPYFRMIMPF code:
0049.00 CPYFRMIMPF FROMSTMF('/ZIP/ZIPFILE.CSV
0050.00 TOFILE(*CURLIB/&EDTF) MBROPT(*REPLACE) +
0051.00 RCDDLM(*LF) STRDLM(*NONE) +
0052.00 RMVBLANK(*TRAILING) RPLNULLVAL(*FLDDFT) +
0052.01 RMVCOLNAM(*YES)
This is a sample of the data from the ZIPFILE.CSV
zip_code,distance,city,sta
15090,99.162,"Wexford","PA
15084,99.649,"Tarentum","P
15006,98.913,"Bairdford","
15015,98.329,"Bradfordwood
This is my DDS:
0001.00 0008 A R ZIPCREC TEXT('ZIP RADIUS')
0002.00 0000 A ZIP 5A COLHDG('ZIP CODE')
0003.00 0000 A ZDIST 4P 3 COLHDG('DISTANCE')
0004.00 0000 A ZCITY 30A COLHDG('CITY')
0005.00 0000 A ZSTATE 4A COLHDG('STATE')
Thanks for your help!!
I am running into an error when using CPYFRMIMPF and numerics. When I run the CPYFRMIMPF command I get these errors.. The copy did not complete for reason code 9. When I have the DDS fields all alpha numeric it works.
This is my CPYFRMIMPF code:
0049.00 CPYFRMIMPF FROMSTMF('/ZIP/ZIPFILE.CSV
0050.00 TOFILE(*CURLIB/&EDTF) MBROPT(*REPLACE) +
0051.00 RCDDLM(*LF) STRDLM(*NONE) +
0052.00 RMVBLANK(*TRAILING) RPLNULLVAL(*FLDDFT) +
0052.01 RMVCOLNAM(*YES)
This is a sample of the data from the ZIPFILE.CSV
zip_code,distance,city,sta
15090,99.162,"Wexford","PA
15084,99.649,"Tarentum","P
15006,98.913,"Bairdford","
15015,98.329,"Bradfordwood
This is my DDS:
0001.00 0008 A R ZIPCREC TEXT('ZIP RADIUS')
0002.00 0000 A ZIP 5A COLHDG('ZIP CODE')
0003.00 0000 A ZDIST 4P 3 COLHDG('DISTANCE')
0004.00 0000 A ZCITY 30A COLHDG('CITY')
0005.00 0000 A ZSTATE 4A COLHDG('STATE')
Thanks for your help!!
Hi,
I'm currently working in AWS and trying to use a Lambda function to automate the creation of my AMIs. I'm doing this via the use of the Python script below, but when I test it it returns an error. Can anyone shed any light on what I should be looking at please?
Script:
import boto3
import collections
import datetime
import sys
import pprint
ec = boto3.client('ec2')
#image = ec.Image('id')
def lambda_handler(event, context):
reservations = ec.describe_instances(
Filters=[
{'Name': 'tag-key', 'Values': ['backup', 'Backup']},
]
).get(
'Reservations', []
)
instances = sum(
[
[i for i in r['Instances']]
for r in reservations
], [])
print "Found %d instances that need backing up" % len(instances)
to_tag = collections.defaultdict(li
for instance in instances:
try:
retention_days = [
int(t.get('Value')) for t in instance['Tags']
if t['Key'] == 'Retention'][0]
except IndexError:
retention_days = 7
finally:
#for dev in instance['BlockDeviceMappi
# if dev.get('Ebs', None) is None:
# continue
# vol_id = dev['Ebs']['VolumeId']
# print "Found EBS volume %s on instance %s" % (
# vol_id, instance['InstanceId'])
#snap = ec.create_snapshot(
# VolumeId=vol_id,
…
I'm currently working in AWS and trying to use a Lambda function to automate the creation of my AMIs. I'm doing this via the use of the Python script below, but when I test it it returns an error. Can anyone shed any light on what I should be looking at please?
Script:
import boto3
import collections
import datetime
import sys
import pprint
ec = boto3.client('ec2')
#image = ec.Image('id')
def lambda_handler(event, context):
reservations = ec.describe_instances(
Filters=[
{'Name': 'tag-key', 'Values': ['backup', 'Backup']},
]
).get(
'Reservations', []
)
instances = sum(
[
[i for i in r['Instances']]
for r in reservations
], [])
print "Found %d instances that need backing up" % len(instances)
to_tag = collections.defaultdict(li
for instance in instances:
try:
retention_days = [
int(t.get('Value')) for t in instance['Tags']
if t['Key'] == 'Retention'][0]
except IndexError:
retention_days = 7
finally:
#for dev in instance['BlockDeviceMappi
# if dev.get('Ebs', None) is None:
# continue
# vol_id = dev['Ebs']['VolumeId']
# print "Found EBS volume %s on instance %s" % (
# vol_id, instance['InstanceId'])
#snap = ec.create_snapshot(
# VolumeId=vol_id,
…
How to calculate linear regression in oracle plsql.
Please see the file attached.
C--Tanuja-Lake_IL-BRDs-linear-regre.docx
Please see the file attached.
C--Tanuja-Lake_IL-BRDs-linear-regre.docx
How do i get the attached data "normalised" -- made into normal distribution ?
Worksheet "Data" = Full Data
"Filtered 25-65" = data with 25-65 s filtered by "Data" and copied in this worksheet.
If i use 25-65, it has the best result - ie, less skewness but stil not into normal distribution.
Any idea to use that range such that the data plotted is normal distribution ?
Data-25-65--Check-Normal--EE.xlsx
Worksheet "Data" = Full Data
"Filtered 25-65" = data with 25-65 s filtered by "Data" and copied in this worksheet.
If i use 25-65, it has the best result - ie, less skewness but stil not into normal distribution.
Any idea to use that range such that the data plotted is normal distribution ?
Data-25-65--Check-Normal--EE.xlsx
Hi,
I would like to prepare data for regression analysis.
I can prepare data in two forms.
a) values
b) rankings.
example:
values 60,30,25,90
rankings 2,3,4,1
Which format would be most suitable or does it not matter ?
many thanks
Ian
I would like to prepare data for regression analysis.
I can prepare data in two forms.
a) values
b) rankings.
example:
values 60,30,25,90
rankings 2,3,4,1
Which format would be most suitable or does it not matter ?
many thanks
Ian
OWASP Proactive Controls
Learn the most important control and control categories that every architect and developer should include in their projects.
Hello,
I have a list of lists. The lists in the list of lists are file names. I use lapply to read and merge the contents of each list in the list of lists (3 merged contents in this case which will be the content of 3 files). Then, I have to change the name of the 3 resulting files and finally I have to write the contents of the files to each file.
lc <- list("test.txt", "test.txt", "test.txt", "test.txt")
lc1 <- list("test.txt", "test.txt", "test.txt")
lc2 <- list("test.txt", "test.txt")
#list of lists. The lists contain file names
lc <- list(lc, lc1, lc2)
#new names for the three lists in the list of lists
new_dataFns <- list("name1", "name2", "name3")
file_paths <- NULL
new_path <- NULL
#add the file names to the path and read and merge the contents of each list in the list of lists
lapply(
lc,
function(lc) {
filenames <- file.path(dataFnsDir, lc)
dataList= lapply(filenames, function (x) read.table(file=x, header=TRUE))
Reduce(function(x,y) merge(x,y), dataList)
# print(dataList)
}
)
#add the new name of the file to the path total will be 3 paths/fille_newname.tsv.
lapply(new_path, function(new_path){new_pat
The statements above work because lc and new_dataFns are global and I can pass them to the lapply function
#Finally, I need to write the merged contents to the corresponding file (path/name.tsv). I tried the following statement, but this …
I have a list of lists. The lists in the list of lists are file names. I use lapply to read and merge the contents of each list in the list of lists (3 merged contents in this case which will be the content of 3 files). Then, I have to change the name of the 3 resulting files and finally I have to write the contents of the files to each file.
lc <- list("test.txt", "test.txt", "test.txt", "test.txt")
lc1 <- list("test.txt", "test.txt", "test.txt")
lc2 <- list("test.txt", "test.txt")
#list of lists. The lists contain file names
lc <- list(lc, lc1, lc2)
#new names for the three lists in the list of lists
new_dataFns <- list("name1", "name2", "name3")
file_paths <- NULL
new_path <- NULL
#add the file names to the path and read and merge the contents of each list in the list of lists
lapply(
lc,
function(lc) {
filenames <- file.path(dataFnsDir, lc)
dataList= lapply(filenames, function (x) read.table(file=x, header=TRUE))
Reduce(function(x,y) merge(x,y), dataList)
# print(dataList)
}
)
#add the new name of the file to the path total will be 3 paths/fille_newname.tsv.
lapply(new_path, function(new_path){new_pat
The statements above work because lc and new_dataFns are global and I can pass them to the lapply function
#Finally, I need to write the merged contents to the corresponding file (path/name.tsv). I tried the following statement, but this …
Hi
I have one PDC server 2008R2 (D2R03Q02) holding all FSMO roles and a second PDC server 2012R2 (PowerT130) who is not replicating any more since more than a month.
on PDC1 the command repadmin /showrepl shows no erros
on PDC2 the command repadmin /showrepl contains several errors
the netdom query FSMO shows all roles on PDC D2R03Q02
Connectivity: I can ping both servers
If I try to transfer FSMO to the second PDC PowerT130 I get the ERROR The current Operations master is offline. The role cannot be transferred.
But the PDC D2R03Q02 is up and running and I can ping it from the second PDC.
Dcdiag show many errors and warnings on both PDC
Errors related to Ldap for example
or warnings like :
Warning: DcGetDcName(PDC_REQUIRED) call failed, error 1355
Warning: DcGetDcName(TIME_SERVER) call failed, error 1355
A Time Server could not be located.
The server holding the PDC role is down.
Warning: DcGetDcName(GOOD_TIME_SERV
error 1355
A Good Time Server could not be located.
I attached The complet Dcdiag report dcdia.txt
DNSLINT command look good
DNSLint Report
System Date: Fri Jul 20 23:42:26 2018
Command run:
dnslint /ad 192.168.1.6 /s 192.168.1.7 /v
Root of Active Directory Forest:
Ecole.Schulz.Local
Active Directory Forest Replication GUIDs Found:
DC: D2R03Q02
GUID: 1a3677e0-7a77-413b-b70d-f0
DC: POWERT130
GUID: …
I have one PDC server 2008R2 (D2R03Q02) holding all FSMO roles and a second PDC server 2012R2 (PowerT130) who is not replicating any more since more than a month.
on PDC1 the command repadmin /showrepl shows no erros
on PDC2 the command repadmin /showrepl contains several errors
the netdom query FSMO shows all roles on PDC D2R03Q02
Connectivity: I can ping both servers
If I try to transfer FSMO to the second PDC PowerT130 I get the ERROR The current Operations master is offline. The role cannot be transferred.
But the PDC D2R03Q02 is up and running and I can ping it from the second PDC.
Dcdiag show many errors and warnings on both PDC
Errors related to Ldap for example
or warnings like :
Warning: DcGetDcName(PDC_REQUIRED) call failed, error 1355
Warning: DcGetDcName(TIME_SERVER) call failed, error 1355
A Time Server could not be located.
The server holding the PDC role is down.
Warning: DcGetDcName(GOOD_TIME_SERV
error 1355
A Good Time Server could not be located.
I attached The complet Dcdiag report dcdia.txt
DNSLINT command look good
DNSLint Report
System Date: Fri Jul 20 23:42:26 2018
Command run:
dnslint /ad 192.168.1.6 /s 192.168.1.7 /v
Root of Active Directory Forest:
Ecole.Schulz.Local
Active Directory Forest Replication GUIDs Found:
DC: D2R03Q02
GUID: 1a3677e0-7a77-413b-b70d-f0
DC: POWERT130
GUID: …
All, I am preparing for MFE (financial engineering). I could not thin of any other forum where i could seek help for clearing my doubts on financial products.
Dear experts, is my below understanding correct?
Is r>-1 coming from this statement?
&&&1 + r&&&
if 1+r>0, then r>-1
*****
Extract from Stochastic Calculus for Finance 1
We introduce also an interest rate 1^n. One dollar invested in the money
market at time zero will yield 1 + r dollars at time one. Conversely, one dollar
borrowed from the money market at time zero will result in a debt of &&&1 + r&&&
at time one. In particular, the interest rate for borrowing is the same as the
interest rate for investing. It is almost always true that r >= 0, and this is
the case to keep in mind. However, the mathematics we develop requires only
that r > -1.
Kindly guide
Dear experts, is my below understanding correct?
Is r>-1 coming from this statement?
&&&1 + r&&&
if 1+r>0, then r>-1
*****
Extract from Stochastic Calculus for Finance 1
We introduce also an interest rate 1^n. One dollar invested in the money
market at time zero will yield 1 + r dollars at time one. Conversely, one dollar
borrowed from the money market at time zero will result in a debt of &&&1 + r&&&
at time one. In particular, the interest rate for borrowing is the same as the
interest rate for investing. It is almost always true that r >= 0, and this is
the case to keep in mind. However, the mathematics we develop requires only
that r > -1.
Kindly guide
hi,
Anyone know how to scale out R server/service in MS SQL 2016 and later?
Anyone know how to scale out R server/service in MS SQL 2016 and later?
Trying to run
Dim RetVal As Long
RetVal = Shell("for %%i in (C D E F G H I J K L M N O P Q R S T U V W X Y Z) DO @if exist %%i: dir %%i:\*.* /s /b >E:\zzz\Zip-Bak\DayBkUp\Di
Get error run time error 53 file not found?
It runs fine in a dos batch file
Trying to create a series of text files with a list of all files on each drive on my computer
Thanks
DIR-ALL-Drives.txt
Dim RetVal As Long
RetVal = Shell("for %%i in (C D E F G H I J K L M N O P Q R S T U V W X Y Z) DO @if exist %%i: dir %%i:\*.* /s /b >E:\zzz\Zip-Bak\DayBkUp\Di
Get error run time error 53 file not found?
It runs fine in a dos batch file
Trying to create a series of text files with a list of all files on each drive on my computer
Thanks
DIR-ALL-Drives.txt
Enabling R commands on T-SQL of MS SQL Server
I have installed Microsoft SQL server 2017 and SQL server management studio on my laptop computer with windows 10 Professional. I am able to connect to the database from management studio. I have also installed R (version 3.5.0 (The R foundation for Statistical Computing).
I learnt that from SQL server 2016 onwards, MS SQL server permits R commands on T-SQL.
I am familiar with both T-SQL and R commands.
I want to know how to enable execution of R commands on T-SQL.
I have installed Microsoft SQL server 2017 and SQL server management studio on my laptop computer with windows 10 Professional. I am able to connect to the database from management studio. I have also installed R (version 3.5.0 (The R foundation for Statistical Computing).
I learnt that from SQL server 2016 onwards, MS SQL server permits R commands on T-SQL.
I am familiar with both T-SQL and R commands.
I want to know how to enable execution of R commands on T-SQL.
Hi,
Anyone know if the R server in SQL 2016 and R and Python feature in SQL 2017 need additional license?
Answer should be a no as MS always license everything SQL server by a single cost and ALL feature is charged already.
Anyone know if the R server in SQL 2016 and R and Python feature in SQL 2017 need additional license?
Answer should be a no as MS always license everything SQL server by a single cost and ALL feature is charged already.
As the administrator for our MS Server 2016 Essentials network, I sometimes need to view coworkers c drive.
I simply use WinKey R > \\JanesCpu\c$ and supply my network admin credentials.
For the rest of the day I can view JanesCpu without supplying the credentials.
Clearly the admin credentials are being saved somewhere, but where are they, and how can I delete them when I am done?
I simply use WinKey R > \\JanesCpu\c$ and supply my network admin credentials.
For the rest of the day I can view JanesCpu without supplying the credentials.
Clearly the admin credentials are being saved somewhere, but where are they, and how can I delete them when I am done?
I'm not able to send an image with a text message on my iPhone 6. After selecting the recipient from contacts I select the camera icon to the left of the text field and select an image from my local images. The image appears at the top of the screen. Then I enter a text message and and hit the green uparrow. In a second I see a red message: "Not Delivered." This all repeatable. The person I'm sending the message to has an Android. Also, I 'm in range of a WiFi signal so I assume this is all going through WiFi and not Cellular. Does anyone know what might be going on?
Thanks.
Thanks.
Introduction to Web Design
Develop a strong foundation and understanding of web design by learning HTML, CSS, and additional tools to help you develop your own website.
I am trying the code below so that if there is neither "/" nor "\" the output is an error and the application stops, but it does not work. I cannot see any thing wrong with the code. Does any one sees any thing wrong?
if (grepl("/", OUTpath, fixed=TRUE)) { # mac style
OUTpath<- paste(paste(unlist(strspli
} else
if (grepl("\\", OUTpath, fixed=TRUE)) { # windows style
OUTpath<- paste(paste(unlist(strspli
} else
if(!grepl("/", OUTpath, fixed=TRUE) || !grepl("\\", OUTpath, fixed=TRUE)){
trueFalse = FALSE
errorMessage("Unrecognized
You can edit your input file and save the changes. Afterwards, stop and restart glycoPipe and upload file again")
stop("Unrecognized path separator in OUTpath\n")
}
if (grepl("/", OUTpath, fixed=TRUE)) { # mac style
OUTpath<- paste(paste(unlist(strspli
} else
if (grepl("\\", OUTpath, fixed=TRUE)) { # windows style
OUTpath<- paste(paste(unlist(strspli
} else
if(!grepl("/", OUTpath, fixed=TRUE) || !grepl("\\", OUTpath, fixed=TRUE)){
trueFalse = FALSE
errorMessage("Unrecognized
You can edit your input file and save the changes. Afterwards, stop and restart glycoPipe and upload file again")
stop("Unrecognized path separator in OUTpath\n")
}
Hi Experts,
I have a Windows 7 Home 64bit machine that wont boot in normal or safe mode....
I have pulled the drive out & backed up the data, run all tests on memory and harddrive (all ok) while I had it out I ran chkdsk /r /f no issues found. I'm currently downloading a windows 7 disk so I can either attempt to repair from that or am best of with a W & R? or is there something that may assist in repairing.
Windows repair from boot up does not fix it although I did come across a message about a driver missing?
The user was hacked by some one who called and he let them on his PC one thing I noticed is that windows 7 is installed on the D drive
cheers.
I have a Windows 7 Home 64bit machine that wont boot in normal or safe mode....
I have pulled the drive out & backed up the data, run all tests on memory and harddrive (all ok) while I had it out I ran chkdsk /r /f no issues found. I'm currently downloading a windows 7 disk so I can either attempt to repair from that or am best of with a W & R? or is there something that may assist in repairing.
Windows repair from boot up does not fix it although I did come across a message about a driver missing?
The user was hacked by some one who called and he let them on his PC one thing I noticed is that windows 7 is installed on the D drive
cheers.
SQL Join Query.
I am trying to query 3 tables in a database and I am not getting the results back that I am expecting.
Here is the query:
SELECT DISTINCT m.ADName, i.FirstName, i.LastName, r.Description
FROM Membership AS m INNER JOIN
user_information AS i ON m.ADName = i.NT_Username INNER JOIN
RolesDescription AS r ON m.RoleID = r.RoleID
WHERE (m.ApplicationID = 6)
I think its because a record does not exist in the "User_Information" (I would like the result to show a blank field if this is the case)
I am expecting 120 records but I am getting only 106.
I am trying to query 3 tables in a database and I am not getting the results back that I am expecting.
Here is the query:
SELECT DISTINCT m.ADName, i.FirstName, i.LastName, r.Description
FROM Membership AS m INNER JOIN
user_information AS i ON m.ADName = i.NT_Username INNER JOIN
RolesDescription AS r ON m.RoleID = r.RoleID
WHERE (m.ApplicationID = 6)
I think its because a record does not exist in the "User_Information" (I would like the result to show a blank field if this is the case)
I am expecting 120 records but I am getting only 106.
hi,
any one tried to upgrade the R ( in database) of SQL 2016 ? I have a SQL server 2016 AOG group with 3 x nodes SQL nodes one by one and only one has R (In database) service can't upgrade, any idea?
any one tried to upgrade the R ( in database) of SQL 2016 ? I have a SQL server 2016 AOG group with 3 x nodes SQL nodes one by one and only one has R (In database) service can't upgrade, any idea?
I want to assign SSL Certificate to my exchagne server 2016 via certificate authority from active directory,
all of the steps, done in proper way, it show " invalid"
please help me
tnx
R. Rahimi
all of the steps, done in proper way, it show " invalid"
please help me
tnx
R. Rahimi
I need to know if there's a way in Excel to have only 3 colors for the "Conditional Formatting" > "3-Color Scale"
to be NOT a "Graded Color Scale".
I only need RED, YELLOW and GREEN, if values fall in between of R and Y, then they come as Orange (Graded Scale effect).
to be NOT a "Graded Color Scale".
I only need RED, YELLOW and GREEN, if values fall in between of R and Y, then they come as Orange (Graded Scale effect).
Statistical Packages
123
Solutions
294
Contributors
Statistical packages are software titles, such as JMP and GNU Octave, and programming languages, such as MATLAB, R and SAS, that are used to discover, explore and analyze data and suggest useful conclusions, either to learn something unexpected or to confirm a hypothesis. The field includes the design and analysis of techniques to give approximate but accurate solutions to hard problems in statistics, econometrics, time-series, optimization and 2D- and 3D-visualization. Data analysis has multiple facets and approaches, encompassing diverse techniques under a variety of names, in different business, science, and social science domains.
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