Update: As of Sept 3rd, 2010, this code or approach no longer works. Twitter has taken themselves too seriously to disable a working protocol in lieu of complicated oAuth. I am keeping the post intact for amusement and knowledge of xmlhttp works.
Twitter is fun. You can stay in touch with your friends and followers, 140 characters at a time.
Out of curiosity I opened the twitter api documentation today to see if it is possible to build an excel based desktop client to post messages to twitter.
It turns out that, doing this using twitter api is relatively simple. So I went ahead and built an excel sheet using which you can post messages to your twitter account. Interested? Read on
Create a new MS Excel file and make a data entry form like this
You can insert the button using form controls. Go to menu > view > toolbars and select “forms”.
Now select the button control and draw it on your sheet.
Excel will show a dailog asking which macro to run when that button is pressed. Enter the name as “tweetThis” or something cool.
Make sure you adjust the text color of password field same as background. That way your colleague (say hello to her from PHD) cannot look over your shoulder and know your twitter password.
PS: if you are using Excel 2007, form controls will be available in “Developer” tab of ribbon. If you don’t see developer tab, you must turn it on from “excel options”. Press office button and select excel options. I guess the option will be in “Advanced” area.
Create named ranges for your data
(this step is not mandatory)
We need just 3 fields of data to post a message to your twitter account. User name, Password and Message . Select each of the 3 cells and create named ranges for them. Name them something meaningful like “tusername”, “tpasswd” and “tmessage”. To create a name for selected cell, just press menu > insert > name > define (press the create name button in excel 2007)
Now, the fun part, writing macro code to post your message to twitter
The actual code is no geek stuff. We will use XMLHTTP object to do our work.
What is xmlhttp? it is the same object your browser uses to dynamically receive and send data from websites. It is the stuff behind all those cool AJAX powered sites.
First, right click on the “tweet” button you have created and select assign macro option. In the window it would show your macroname (tweetThis). Select it and click on edit button. This will open VBA Editor. Don’t freak out. 🙂
Our code needs to do the following stuff:
- Create an xmlhttp object
- Use twitter API’s post method and post the message
- Get the status and display it in debug window (just so that we would know if something went wrong)
- Close the xmlhttp object
I have written the below code, but I am sure you can write your own looking at how simple it is.
Sub tweetThis() Dim xml, tUsername, tPassword, tStatus, tResult Set xml = CreateObject("MSXML2.XMLHTTP") 'get the username entered by you in named range tusername tUsername = Range("tusername") 'get the password entered by you innamed rangetpasswd tPassword = Range("tpasswd") 'get the message entered by you innamed range tmessage tStatus = Range("tmessage")xml.Open "POST", "http://" & tUsername & ":" & tPassword & "@twitter.com/statuses/update.xml?status=" & tStatus, False xml.setRequestHeader "Content-Type", "content=text/html; charset=iso-8859-1" xml.Send tResult = xml.responsetext 'you can view Twitter’s response in debug window Debug.Print tResult Set xml = Nothing End Sub
Finally, enter your user name and password and a test message and test your code
If everything is fine, you should be able to tweet from that spreadsheet. Here is a sample message if you don’t know what to tweet:
Wow, http://chandoo.org/wp just posted a cool new way to make your own twitter client
You can easily extend this code to check someones status message, DM or message someone or analyze twitter stream. For processing twitter data you can use DOM parser objects from VBA.
Download Twitter from Excel Application and Play around with the code
Go ahead and download the twitter from excel app and learn by opening the code etc.
That is all. Do you like this ?
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12 Responses to “29 Excel Formula Tips for all Occasions [and proof that PHD readers truly rock]”
Some great contributions here.
Gotta love the Friday 13th formula 😀
Great tips from you all! Thanks a lot for sharing! bsamson, particularly you helped me on a terribly annoying task. 🙂
(BTW, Chandoo, it's not exactly "Find if a range is normally distributed" what my suggestion does. It checks if two proportions are statistically different. I probably gave you a bad explanation on twitter, but it'd be probably better if you fix it here... 🙂 )
Great compilation Chandoo
For the "Clean your text before you lookup"
=VLOOKUP(CLEAN(TRIM(E20)),F5:G18,2,0)
I would like to share a method to convert a number-stored-as-text before you lookup:
=VLOOKUP(E20+0,F5:G18,2,0)
@Peder, yeah, I loved that formula
@Aires: Sorry, I misunderstood your formula. Corrected the heading now.
@John.. that is a cool tip.
Hey Chandoo,
That p-value formula is really great for a statistics person like me.
What a p-value essentially is, is the probability that the results obtained from a statistical test aren't valid. So for example, if my p value is .05, there's a 5% probability that my results are wrong.
You can play with this if you install the Data Analysis Toolpak (which will perform some statistical tests for you AND provide the P Value.)
Let's say for example I've got two weeks of data (separated into columns) with the number of hours worked per day. I want to find out if the total number of hours I worked in week two were really all the different than week one.
Week1 Week2
10 11
12 9
9 10
7 8
5 8
Go to Data > Data Analysis > T-Test Assuming Unequal Variances > OK
In the Variable 1 Box, select the range of data for week 1.
In the Variable 2 Box, select the range of data for week 2.
Check "Labels"
In the Alpha box, select a value (in percentage terms) for how tolerant you are of error.
.05 is the general standard; that is to say I am willing to accept a 95% level of confidence that my result is accuarate.
Select a range output.
Excel calculates a number of results: Average (mean) for each week's data, etc.
You'll notice however that there are two P Values; one-tail and two-tail. (one tail tests are for > or .05), the number of hours I worked in week two is statistically equivalent to the number of hours I worked in week one.
So here’s a way you might want to use this. You put up a new entry on your blog. You think it’s the best entry ever! So you pull your webstats for this week and compare it to last week. You gather data for each week on the length of time a visitor spends on your website. The question you’re trying to prove statistically is whether there’s an average increase in the amount of time spent on your website this week as compared to last week (as a result of your fancy new blog post). You can run the same statistical test I illustrated above to find out. Incidentally, it matters very little to the stat test whether the quantity of visitors differs or not.
Anyhow, the Data Analysis toolpack doesn't perform a lot of stat tests that folks like me would like to have access to. In those cases I have to either use different software, or write some very complicated mathematical formulas. Having this p-value formula makes my life a LOT easier!
Thanks!
Eric~
Fantastic stuf..One line explanation is cool.
Thanks to all the contributors
OS
Take FirstName, MI, LastName in access (you can fix it to work in excel) capitalize first letter of each and lowercase the rest and add ". " if MI exists then same for last name:
Full Name: Format(Left([FirstName],1),">") & Format(Right([FirstName]),Len([FirstName])-1),"") & ". ","") & Format(Left([LastName],1),">") & Format(Right([LastName],Len([LastName])-1),"<")
I teach excel, access, etc etc for a living and i have my access students build this formula one step at a time from the inside out to show how formulas can be made even if it looks complicated. Yes I know I could just do IsNull([MI]) and reverse the order in the Iif() function but the point here is to nest as many functions as possible one by one (also I illustrate how it will fail without the Not() as it is)
Extract the month from a date
The easiest formula for this is =MONTH(a1)
It will return a 1 for January, 2 for February etc.
if in a column we write the value of total person for eg. 10 if we spent 1.33 paise each person then how we get total amount in next column and the result will in round form plzzzzz solve my problem sir................... thank u
@Anjali
If the value 10 is in B2 and 1.33 paise is in C2 the formula in D2 could be =B2*C2
If the values are a column of values you can copy the formula down by copy/paste or drag the small black handle at the bottom right corner of cell D2
kindly share with me new forumulas.
How to convert a figure like 870.70 into 870 but 871.70 into 880 using excel formula ? Please help.