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DATA SCIENCE WITH R : Feb 3,4,10,11,17,18,24,25 Batch

Priyanka_Mehta

Well-Known Member
Simplilearn Support
Hello All,

Greetings from Simplilearn!!

Let us have a discussion about the course, explore the course here and try to resolve all our queries related to the same.

Happy Learning!!

Regards,
Priyanka
GTA - Simplilearn
 

Ashutosh_Trainer

Active Member
Alumni
Trainer
Hi Guys,

Here is the R script file for 2nd session dated 4 Feb 2018.

Thanks
Ashutosh Kumar
(Faculty)
 

Attachments

  • 2. Lesson 2 & 3.txt
    5.5 KB · Views: 44

Ashutosh_Trainer

Active Member
Alumni
Trainer
as per Aravind attached some more functions in R, some of them might be there in other file that is shared. Also I will be sharing additional material/examples on statistics that will be covered
 

Attachments

  • 2. Some Commonly used R functions1.txt
    2.4 KB · Views: 38

Shinu V Ignatious

Member
Alumni
i have a doubt;
I am not able to execute x = 1+1 in r script window--- its showing error "
Error: object 'x' not found
but if i excute this in console it is working,, what is the actual problem?
 

Ashutosh_Trainer

Active Member
Alumni
Trainer
Hi Team,

Attached is code and hsb data file for Day 3 - Lesson 4 & 5.

Thanks
Ashutosh
 

Attachments

  • 3. Lesson 4 & 5.txt
    6 KB · Views: 37
  • hsb.zip
    2 KB · Views: 34

Sachin Jain(4239)

Member
Alumni
Hi Ashutosh,
I have a question on Hypothesis, in text file H0 is equality and Ha is inequality, then in smoke vs exer example, why we have taken H0 as inequality and Ha as equality ?
 

Shinu V Ignatious

Member
Alumni
what does
Pr(>|t|) means in the below result of summary function
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 31.193216 6.451059 4.835 1.99e-06 ***
crim -0.111468 0.044284 -2.517 0.01227 *
zn 0.039318 0.016852 2.333 0.02020 *
indus 0.030617 0.072480 0.422 0.67298
chas 2.630225 1.027130 2.561 0.01086 *
nox -18.258055 4.463830 -4.090 5.34e-05 ***
also what (***) means in the summary ?
 

Ashutosh_Trainer

Active Member
Alumni
Trainer
Hi Ashutosh,
I have a question on Hypothesis, in text file H0 is equality and Ha is inequality, then in smoke vs exer example, why we have taken H0 as inequality and Ha as equality ?
Here H0 means no relation. Whenever we are testing relationship b/w variables. H0 means no relation and Ha means relationship
 

_19284

Member
Alumni
Hi Priyanka,

Please provide me with the test link (took place today) . I could not appear for some reason.

Thanks,
Payal
 

Sachin Jain(4239)

Member
Alumni
Hi Priyanka,
I have already attended 9 out of 10 classes, 24 Feb it is not showing because it was short class of 1 hour. It should show me as completion of course ? Please comment
 

s_sounder(2081156)

Member
Alumni
Hi Ashutosh,

Can you help me on this issue?

iam getting the following error when i ran the confusionMatrix function.

Error in confusionMatrix(table(svm_predictData$Is_Diabetic, svm_predictData$svm_predict)) :
could not find function "confusionMatrix"

Code :

SVM_Diabetic = svm(Is_Diabetic~.,Diab_Train)
svm_predict = predict(SVM_Diabetic,Diab_Test)
View(svm_predict)
svm_predictData = cbind(Diab_Test,svm_predict)
View(svm_predictData)
confusionMatrix(table(svm_predictData$Is_Diabetic,svm_predictData$svm_predict))

I installed the following packages as well as library. but, still iam getting error.

library(e1071)
library(caret)

Could you please let me know the reason for this error? did i miss anything?

Regards,
Soundar.
 

_18334

New Member
Alumni
Hello All,

Greetings from Simplilearn!!

Let us have a discussion about the course, explore the course here and try to resolve all our queries related to the same.

Happy Learning!!

Regards,
Priyanka
GTA - Simplilearn
Hi Guys,

Here is the R script file for 2nd session dated 4 Feb 2018.

Thanks
Ashutosh Kumar
(Faculty)
Hello Ashutosh,

Please help me out on how to open the R studio even after the installation done on the OS. For R studio I can see the program files in my c disk but not sure on which icon to click to access it further.

Please check and let me know ASAP.

Best Regards,
Rohith
 

Priyanka_Mehta

Well-Known Member
Simplilearn Support
Hello Ashutosh,

Please help me out on how to open the R studio even after the installation done on the OS. For R studio I can see the program files in my c disk but not sure on which icon to click to access it further.

Please check and let me know ASAP.

Best Regards,
Rohith
HI Rohith,

I would like to inform you that, you have to open your start menu and in search bar, type "RStudio" and if you have successfully installed R and RStudio on your system then you will be able to open the same and practice.

However, you can also use the R Lab provided in your LMS account which doesn't require any installation. Kindly find the path mentioned below to locate the same:
LMS account > Course icon > Projects > Lab Access

Kindly use the username and password provided on this page to access your Cloud Lab for the respective courses.

Also, when you will open this very first time, it will show you a message that it will take 2 minutes to setup your Lab. So kindly wait for approximately 30 minutes then re-login in your account and you will be able to access the cloud lab.

I hope this will help you. If still, you are stuck while doing the same, kindly reach us with a screenshot of the issue faced by you, so that we can guide you more accurately.
 
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