I have the following list:
File_name_list=['A','B','C','D','E']
I am trying to save an excel file named as each of the elements contained in the list. I'm not sure how to accomplish this. I tried:
for e in File_name_list:
print (e)
df.to_excel('C:/Users/user/Desktop/'%File_name_list)
So at the end I want to end up with five different files.
Thank you for your help.
When you do a for (a) in (b): loop, (b) describes the list you want to loop through, while (a) describes the element that each iteration of the loop is looking at. In your case, each iteration of the loop looks at either 'A' or 'B' or 'C', and stores that into your variable "e". To use this variable, all you have to do is:
for e in File_name_list:
print (e)
df.to_excel('C:/Users/user/Desktop/'+e)
It'd also be a good idea to append the file type on the end of your file name like so:
df.to_excel('C:/Users/user/Desktop/'+e+'.xls')
you can use:
df.to_excel('C:/Users/user/Desktop_/'+e+'_.xlsx')
Or:
df.to_excel('C:/Users/user/Desktop_/{}_.xlsx'.format(str(e)))
Related
i wrote a python program in order to list all the tweets in a Excel file which contains the word "grammy", but it didn't work, and i don't know how to modify it.
In this case, line contains a list of strings. You can iterate over each cell value in line and search for your keyword as follows:
for line in csvdata:
for cell in line:
if 'grammy' in cell:
print('this line contains my word:', line)
The problem with your approach is you initialize the counter variable i, then increment that variable, but you never reset the value of i to zero. If you want to use your approach, you'd need to reset the i counter variables to 0 for each line:
for line in csvdata:
i = 0
t = t + 1
i = i + 1
... [ rest of your code ]
If you don't reset i for each line, then the first line will increase i by 1, and all subsequent lines will just keep increasing the value of i. Eventually this will cause the index error that you're wisely catching!
Another problem with this approach is each line only checks a single value for i. So for each row, you're only checking a single cell's value. One way around this is to use the for loop approach I list above (for cell in line). Another way would be to use a while loop, but if you're new to programming I'd start by mastering the for loop before you move on to while loops.
I hope this helps!
I have a program which sets a variable "x" to the length of a random dictionary word, and then should put "a" into a field x amount of times. However I am unsure whether my syntax is right or wrong. The variable randomword is already defined and works. My non-working code is as follows:
global x
on mouseUp
put length(randomword) into x
put repeatedString("a",x) into field "wordDisplay"
end mouseUp
However, when I look at wordDisplay after clicking my button, it is blank. An explanation of why, and code to fix this would be really beneficial.
Cheers.
You don't say if 'repeatedString' is a function you're calling from somewhere else, but if I understand what you're trying to do, you can try something like this, where you place 'a' into temporary variable:
put length(randomword) into x
repeat x
put "a" after temp
end repeat
set text of field "wordDisplay" to temp
Also, am guessing this is the case, but the only reason to use the global is if you plan to use the value of x across the scripts of multiple objects. If you're just using 'x' in this script, you don't need the variable declaration.
Page 227 of my book "Programming LiveCode for the Real Beginner" contains the following useful function, which does exactly what you want:
function repeatChar theChar,theAmount
local myLongString
set the itemDel to theChar
put theChar into item theAmount of myLongString
return myLongString
end repeatChar
Note that a repeat loop is not necessary.
Use the function in your script like this:
global randomWord
on mouseUp
local x
put length(randomWord) into x
put repeatChar("a",x) into field "wordDisplay"
end mouseUp
I am creating a program which opens an image, and uses the MATLAB ginput command to store x and y coordinates, which are operated on in the loop to fulfill requirements of an if statement and output a number or string corresponding to the region clicked during the ginput session. At the same time, I am using the input command to input a string from the command window relating to these numbers. The ginput session is placed in a while loop so a click in a specific area will end the input session. For each session (while loop), only one or two inputs from the command window are needed. Finally, I am trying to store all the data in a csv or txt file, but I would like it to be tabulated so it is easy to read, i.e. rows and columns with headers. I am including some sample code. My questions are: 1, how can an input of x and y coordinates be translated to a string? It is simple to do this for a number, but I cannot get it to work with a string. 2, any help on printing the strings and number to a tabulated text or cdv file would be appreciated.
Command line input:
prompt='Batter:';
Batter=input(prompt,'s');
While Loop:
count=1;
flag=0;
while(flag==0)
[x,y]= ginput(1);
if (y>539)
flag=1;
end
if x<594 && x>150 && y<539 && y>104
%it's in the square
X=x;
Y=y;
end
if x<524 && x>207 && y<480 && y>163
result='strike'
else
result='ball'
end
[x,y]= ginput(1);
pitch=0;
if x<136 && x>13
%its' pitch column
if y<539
pitch=6;
end
if y<465
pitch=5;
end
if y<390
pitch=4;
end
if y<319
pitch=3;
end
if y<249
pitch=2;
end
if y<175
pitch=1;
end
end
if pitch==0
else
plot(X,Y,'o','MarkerFaceColor',colors(pitch),'MarkerSize',25);
text(X,Y,mat2str(count));
end
count=count+1
M(count,:)=[X,Y,pitch];
end
For the above series of if statements, I would prefer a string output rather than the numbers 1-6 if the condition is satisfied.
The fprintf function is used to print to a file, but I have issues combining the strings and numbers using it:
fileID = fopen('pitches.csv','w');
fid = fopen('gamedata.txt','w');
fmtString = [repmat('%s\t',1,size(Batter,2)-1),'%s\n'];
fprintf(fid,fmtString,Batter,result);
fclose(fid);
for i=1:length(M)
fprintf(fileID,'%6.2f %6.2f %d\n',M(i,1),M(i,2),M(i,3));
end
fclose(fileID);
I have tried adding the string handles to the fprintf command along with the columns of M, but get errors. I either need to store them in an array (How?) and print all the array columns to the file, or use some other method. I also tried a version of the writetable method:
writetable(T,'tabledata2.txt','Delimiter','\t','WriteRowNames',true)
but I can't get everything to work right. Thanks very much for any help.
Let's tackle your questions one at a time:
1, how can an input of x and y coordinates be translated to a string?
You can use the sprintf command in MATLAB. This takes exactly the same syntax as fprintf, but the output of this function will give you a string / character array of whatever you desire.
2, any help on printing the strings and number to a tabulated text or cdv file would be appreciated.
You can still use fprintf but you can specify a matrix as the input. As such, you can do this:
fprintf(fileID,'%6.2f %6.2f %d\n', M.');
This will write the entire matrix to file. However, care must be taken here because MATLAB writes to files in column major format. This means that it will traverse along the rows before going to the next column. If you want to write data row by row, you will need to transpose the matrix first so that when you are traversing down the rows, it will basically do what you want. You will need to keep this in mind before you start trying to write strings to an file. What I would recommend is that you place each string in a cell array, then loop through each element in the cell array and write each string individually line by line.
Hopefully this helps push you in the right direction. Reply back to me in a comment and we can keep talking if you need more help.
Question : Is there a way to have direct access to a specific cell in vtkPolyData structure?
I'm using vtkPolyData to store sets of lines, say L.
Currently, I'm using GetLines() to know the number of lines in L. Then, I have to use GetNextCell to go through this set of lines using a "while" loop.
Current code is something like:
vtkSmartPointer<vtkPolyData> a;
...
vtkSmartPointer<vtkCellArray> lines = a->GetLines();
...
while(lines->GetNextCell(numberOfPoints, pointIds) != 0)
-> I'd like to be able to work directly on a specific line by doing something like:
myline = a[10];
doSomething(myline);
you could get an access to a specific cell using vtkDataSet::GetCell(vtkIdType cellId) function
I have a manual list I created in a macro in stata, something like
global list1 "a b c d"
which I later iterate through with something like
foreach name in $list1 {
action
}
I am trying to change this to a DB driven list because the list is getting big and changing quickly, I create a new $list1 with the following commands
odbc load listitems=items, exec("SELECT items from my_table")
levelsof listitems
global list1=r(levels)
The items on each are the same, but this list seems to be different and when I have too many items it break on the for loop with the error
{ required
r(100);
Also, when I run only levelsof listitems I get the output
`"a"' `"b"' `"c"' `"d"'
Which looks a little bit different than the other macros.
I've been stuck in this for a while. Again, it only fails when the number of items becomes large (over 15), any help would be very appreciated.
Solution 1:
levelsof listitems, clean local(list1)
foreach name of local list1 {
...action with `name'...
}
Solution 2:
levelsof listitems, clean
global list1 `r(levels)'
foreach name of global list1 {
...action with `name'...
}
Explanation:
When you type
foreach name in $list1 {
then whatever is in $list1 gets substituted inline before Stata ever sees it. If global macro list1 contains a very long list of things, then Stata will see
foreach name in a b c d e .... very long list of things here ... {
It is more efficient to tell Stata that you have a list of things in a global or local macro, and that you want to loop over those things. You don't have to expand them out on the command line. That is what
foreach name of local list1 {
and
foreach name of global list1 {
are for. You can read about other capabilities of foreach in -help foreach-.
Also, you originally coded
levelsof listitems
global list1=r(levels)
and you noted that you saw
`"a"' `"b"' `"c"' ...
as a result. Those are what Stata calls "compound quoted" strings. A compound quoted string lets you effectively nest quoted things. So, you can have something like
`"This is a string with `"another quoted string"' inside it"'
You said you don't need that, so you can use the "clean" option of levelsof to not quote up the results. (See -help levelsof- for more info on this option.) Also, you were assigning the returned result of levelsof (which is in r(levels)) to a global macro afterward. It turns out -levelsof- actually has an option named -local()- where you can specify the name of a local (not global) macro to directly put the results in. Thus, you can just type
levelsof listitems, clean local(list1)
to both omit the compound quotes and to directly put the results in a local macro named list1.
Finally, if you for some reason don't want to use that local() option and want to stick with putting your list in a global macro, you should code
global list1 `r(levels)'
rather than
global list1=r(levels)
The distinction is that the latter treats r(levels) as a function and runs it through Stata's string expression parser. In Stata, strings (strings, not macros containing strings) have a limit of 244 characters. Macros containing strings on the other hand can have thousands of characters in them. So, if r(levels) had more than 244 characters in it, then
global list1=r(levels)
would end up truncating the result stored in list1 at 244 characters.
When you instead code
global list1 `r(levels)'
then the contents of r(levels) are expanded in-line before the command is executed. So, Stata sees
global list1 a b c d e ... very long list ... x y z
and everything after the macro name (list1) is copied into that macro name, no matter how long it is.