Nitin Solanki

java net connectexception connection refused no further information - what do I do?

Regarding java net connectexception connection refused no further information - 1) Client and Server, either or both of them are not in the network. Yes it's possible that they are not connected to LAN or internet or any other network, in that case, Java will throw a "java.net.ConnectException: Connection refused"…

Java

Answered Oct 12, 2022 · 1.8K Views Read answer →

I can't connect to SQL server database via an IP Address

This is a network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. The name of the computer hosting the SQL Server. Your SQL…

Salesforce

Answered Aug 23, 2021 · 6.1K Views Read answer →

Open Mapping app like Waze, Google Maps, and Apple Maps (iOS only) From Salesforce1

1.) Waze Map: var address = "{!Account.ShippingStreet}, " + "{!Account.ShippingCity}, " + "{!Account.ShippingPostalCode}, " + "{!Account.ShippingCountry}"; var encodedAddress = encodeURIComponent(address); sforce.one.navigateToURL("waze://?q="+encodedAddress +"navigate=yes");2.) Apple Maps (iOS only):…

Salesforce

Answered Aug 5, 2021 · 1.8K Views Read answer →

How can we create multiple linear models at once and put the coefficients into a new matrix. Is it a good choice?

No it’s not a good choice. Suppose we have many columns and we would like to create multiple linear regression models at once secondly extracting the coefficients and put them into a new matrix. This is possible to do but statistically this might not be the best possible approach to analyses temporal data. Below is…

Data Science

Answered Feb 1, 2020 · 1.5K Views Read answer →

How to install and import packages?

Once you install pip in your system then installing new packages becomes very simple for you. You just need to run below command in your command prompt and it will install the package at default location of your system where python setup is installed. pip install package-name For example, if you want to install…

Data Science

Answered Jan 29, 2020 · 1.7K Views Read answer →

How to use Putty, and access launched instances via SSH.

Once the instance is launched (assuming default VPC is used) then the only way to access the machine/instance is via public IP. Download the private key pair to a location on your windows machine and access it via Cygwin, via putty just save it within the SSH keys dir and enter below command. #ssh -i .pem @ If…

AWS

Answered Jan 27, 2020 · 1.6K Views Read answer →

What is the assignment operator and how it works in python?

In python we ‘=’ sign to assign any value to a variable and this operator assigns right-hand side value to the variable written on the left side. But If the Arithmetic expression is written on the right-hand side of this operator then it will evaluate first that expression then assigns the value to a variable. The…

Data Science

Answered Jan 19, 2020 · 1.9K Views Read answer →

How to perform a mathematical operation on python variables?

In python you can perform arithmetic like addition, subtraction, multiplication, division, exponential, modulus, floor division on variables. To understand better please see below: Addition (+): Adds value at either side of the value #Declaring a variable a = 20 b = 30 #Addition c = a+b print(c) Subtracti

Data Science

Answered Jan 19, 2020 · 2.5K Views Read answer →

What do you understand by multiple assignments?

Multiple assignments mean assigning multiple or same values to multiple variables at the same. In python, you can assign values to multiple variables in one go. For example- a = b = c = d = 20 If you run above code in python variable a, b, c, d will be assigned value 20. Here an integer object is created with the…

Data Science

Answered Jan 9, 2020 · 1.7K Views Read answer →

Explore the various matrix operations using R.

A matrix is a representation of an array of numbers in n dimensional format that are again represented as rows and columns. From a matrix, we can perform any type of operations such as indexing, slicing, changing the data types, etc. Let us create a vector for matrix operation v

Data Science

Answered Jan 7, 2020 · 1.6K Views Read answer →

How to set our own segmentation rules to break up docs into sentences based on our own rules?

For adding rules, Spacy's built-in sentencizer relies on the dependency parse and end-of-sentence punctuation to determine segmentation rules. We can add rules of our own, but they have to be added before the creation of the Doc object, as that is where the parsing of segment start tokens happens Let's add a semicolon…

Data Science

Answered Jan 6, 2020 · 2.2K Views Read answer →

A user was going to fit a knn model with faithful data in R. The code is given below:

smp_size

Data Science

Answered Dec 20, 2019 · 2.6K Views Read answer →