I'm investigating for a client feature and I didn't reach the right answer.
This is quite simple : the user edits a full table with datas ( numbers ), chooses which cells receive the sum of which cells and export it.
In Angular we can keep the calculation and hide it to show the result. But what I would like to do is to keep the calculation active when exporting on xls.
For ex.
Cell1 = 25 Cell2 = 45
Cell3 = 70 (Sum(Cell1,Cell2));
In the XLS file It should keep the Sum() function instead of a "flat" 70.
Am I clear enough ? Does someone know a library that can do this ? or the best process to succeed in this feature ?
Excel files are essentially XML Documents.
However building Excel using plain XML is a crazy job...
You can try using the library (ClosedXML) if you are using .NET. https://closedxml.codeplex.com/
It makes much easir to build Excel files.
var wb = new XLWorkbook();
var ws = wb.AddWorksheet("Sheet1");
ws.Cell("A1").SetValue(1).CellBelow().SetValue(1);
ws.Cell("B1").SetValue(1).CellBelow().SetValue(1);
ws.Cell("C1").FormulaA1 = "\"The total value is: \" & SUM(A1:B2)";
var r = ws.Cell("C1").Value;
Assert.AreEqual("The total value is: 4", r.ToString());
// It also works if you use: ws.Cell("C1").GetString()
Related
I am developing a sheet in google sheet that pulls data from coinmarketcap with a script i've been trying to write.
I am a f. noob # coding.
I use the function importxml (i need to refresh the latest price for each coin, like 100 coins) in this script:
function CryptoRefresher() {
var spreadsheet = SpreadsheetApp.getActive();
var queryString = Math.random();
var link1 = "C";
var xpath = "D";
var destination = "E";
var Direction=SpreadsheetApp.Direction;
var NumeroRighe =spreadsheet.getRange("B"+(spreadsheet.getLastRow()+1)).getNextDataCell(Direction.UP).getRow();
for (var i = 2; i <= NumeroRighe; i++) {
var cellFunction1 = '=IMPORTXML("' + SpreadsheetApp.getActiveSheet().getRange(link1+i).getValue() + '?' + queryString + '", "'+ SpreadsheetApp.getActiveSheet().getRange(xpath+i).getValue() + '")';
SpreadsheetApp.getActiveSheet().getRange(destination+i).setValue(cellFunction1);
}
};
Example Data:
Cell B2 = "bitcoin"
cell C2 = "https://coinmarketcap.com/currencies/Bitcoin"
Cell D2 = "//div[#class='priceValue___11gHJ']"
Cell E2 = is the destination and will receive the bitcoin price
The problem is that it's really slow because it calls 1 coin per time.
Question: Is there a way to send ALL THE COINS REQUESTS in 1 single importxml call?
Like I'd like to collect all the coin names in column C (1 cell of column C has 1 different and unique Coin Name) to collect all the coin names that i am watching and ask for 1 single call to speed up the process?
(Is there a way to create an array, a list of the coin names and do 1 single call to coinmarketcap?)
I really can't figure that out and i hope what i'm asking is clear!
Thank you!
Alessandro
Given the structure of the webpage, it is currently not possible to have a single IMPORTXML call to pull multiple arbitrary currencies from the CoinMarketCap site.
However, they have a convenient API that can do that exactly, please see references below:
CoinMarketCap API / Cryptocurrency
And this should get you started in pulling information from the API:
Pulling Currency Data to Google Sheets
I'd suggest using a dedicated service to retrieve the data, for instance this request will give you the data you need without any parsing or signing up to 3rd party services
=IMPORTDATA("https://cryptoprices.cc/BTC")
Trying to parse a complex web page under active development is just prone to fail at some point.
As alternative, go straight to the source, by signing up to the CoinMarketCap api to get more up to date data. (Already mentioned above) You can sign up for the free tier API (333 req/day) at https://pro.coinmarketcap.com/signup/
Wow! Сryptoprices.cc it’s a great service.
But some cryptocurrencies don’t read clearly.
If you change the formula, add / the price is updated and it is correct.
I am doing a dependant dropdown list in google sheets using a script.
The source sheet data is read into an array, The destination sheet pulls the dropdown options from the aray.
The numbers from the source sheet are formatted as degrees; 0°, 45°, 90°, 180°.
When the are displayed in the dropdown on the destination sheet the degree symbol is removed and the 0 option doesn't show as an option at all. so I get 45, 90, 180. If I format the destination cell as percent, the the chosen option doesn't match the validation. and I still can't get the 0°.
How can I pass the formatting with the numbers so everything works correctly?
I was thinking I need to do something with setNumberFormat('##0"°"'), but I don't know how.
This is how I am creating the data from the array:
var ws = SpreadsheetApp.getActiveSpreadsheet() .getSheetByName(mainWsName) ;
var wsOptions = SpreadsheetApp.getActiveSpreadsheet() .getSheetByName(optionsWsName) ;
var options = wsOptions.getRange(3, 2,wsOptions.getLastRow()-2, 5).getValues();
var optionsFormat = wsOptions.getRange(3, 2,wsOptions.getLastRow()-2, 5).getNumberFormat()
This is how the data is being retrieved from the array:
var filteredOptions = options.filter(function(o){ return o[0] === firstLevelColValue && o[1] === val });
var listToApply = filteredOptions.map(function(o){ return o[2] });
var cell = ws.getRange(r, thirdLevelColumn) ;
applyValidationToCell(listToApply,cell);
This is my first time asking a question here, I hope I have given the information necessary to solve my problem. Let me know if there is additional information needed.
Thanks
Use getDisplayValues() instead of getValues()
This will allows you to retrieve the values in exactly the same way as they are displayed in the spreadsheet.
I am relatively new to coding and I have a few issues I don't quite understand how to solve, yet. I'm trying to build code that will make graphs that will produce from a ticker list, with the data downloading from yahoo finance. Taking out of account manually assigning stock1 (and so forth) a ticker for a moment...
I want to figure out how to loop the data going into running the graph, so TSLA and MSFT in my code. So far I have the code below, which I already changed dfs and stocks. I just don't understand how to make the loop. If anyone has some good resources for loops, as well, let me know.
Later, I would like to save the graphs as a png with file names corresponding to the stock being pulled from yahoo, so extra points if someone knows how to change this code (savefig = dict(fname="tsla.png", bbox_inches= "tight") which goes after style = 'default'. Thanks for the help!
import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
import datetime as dt
import mplfinance as mpf
import yfinance as yf
#yahoo info
start = "2020-01-01"
end = dt.datetime.now()
stock1 = 'TSLA'
stock2 = 'MSFT'
df1 = yf.download(stock1, start, end)
df2 = yf.download(stock2, start, end)
stocks = [[stock1],[stock2]]
dfs = [[df1],[df2]]
changingvars = [[stocks],[dfs]]
#graph1
short_sma = 20
long_sma = 50
SMAs = [short_sma, long_sma]
for i in SMAs:
dfs["SMA_"+ str(i)] = dfs.iloc[:,4].rolling(window=i).mean()
graph1 = mpf.plot(dfs, type = 'candlestick',figratio=(16,6),
mav=(short_sma,long_sma),
volume=True, title= str(stocks),
style='default')
plt.show()
Not sure why you are calculating your own SMA's, and grouping your stocks and dataframes, if your goal is only to create multiple plots (one for each stock). Also, if you are using mplfinance, then there is no need to import and/or use matplotlib.pyplot (nor to call plt.show(); mplfinance does that for you).
That said, here is a suggestion for your code. I've added tickers for Apple and Alphabet (Google), just to demonstrate how this can be extended.
stocklist = ['TSLA','MSFT','AAPL','GOOGL']
start = "2020-01-01"
end = dt.datetime.now()
short_sma = 20
long_sma = 50
for stock in stocklist:
df = yf.download(stock, start, end)
filename = stock.lower() + '.png'
mpf.plot(df,type='candlestick',figratio=(16,6),
mav=(short_sma,long_sma),
volume=True, title=stock,style='default',
savefig=dict(fname=filename,bbox_inches="tight")
)
The above code will not display the plots for each stock, but will save each one in its own .png file locally (where you run the script) for you to view afterwards.
Note also that it does not save the actual data; only plots the data and then moves on to the next stock, reassigning the dataframe variable (which automatically deletes the previous stock's data). If you want to save the data for each stock in a separate csv file, that is easy to do as well with Pandas' .to_csv() method.
Also, I am assuming you are calling yf.download() correctly. I am not familiar with that API so I just left that part of the code as you had it.
HTH. Let me know. --Daniel
I want to display data from Parse in a list from GamesScores class using Container in Codename One, this is what I've tried so far and it's not showing anything nor giving any errors:
Container container = findListCont();
container.setLayout(BoxLayout.y());
container.setScrollableY(true);
ParseQuery<ParseObject> query = ParseQuery.getQuery("GameScore");
List<ParseObject> results = (List<ParseObject>) query.find();
System.out.println("Size: " + results.size());
container.addComponent(results, f);
Please help me out, I'm a new in Codename One. If there tutorials on it, please share or anything to help me achieve the desired results.
I'm actually shocked this isn't failing. You are using the add constraint to place the object result as a constraint and you add the form object into the container...
You need to loop over the results and convert them to components to add into the layout. It also seems that you are using the old GUI builder which I would recommend against.
Generally something like this rough pseudo code should work assuming you are using a box Y layout:
for(ParseObject o : results) {
MultiButton mb = new MultiButton(o.getDisplayValue());
f.add(mb);
}
f.revalidate();
Im trying to find a way to convert xls files to pdf, and gembox spreadsheet is great for this. But i need to be able to make it fit to one page as you can when printing to pdf via excel.
Try specifying FitWorksheetWidthToPages and FitWorksheetHeightToPages properties.
For example like the following:
ExcelFile workbook = ExcelFile.Load("Sample.xls");
ExcelWorksheet worksheet = workbook.Worksheets.ActiveWorksheet;
worksheet.PrintOptions.FitWorksheetWidthToPages = 1;
worksheet.PrintOptions.FitWorksheetHeightToPages = 1;
workbook.Save("Sample.pdf");
I hope this helps.