When I have an enumeration sequence like so:
57. y = alloc(30)
58. z = alloc(40)
59. t = alloc(25)
org-mode keeps setting the numbers down to 1, 2, 3, unless I'm really careful and don't touch any “electric” keys. Is there any way to prevent that, telling org-mode that I really want this enumeration to start from 57?
This will do the trick:
[#57] y = alloc(30)
z = alloc(40)
t = alloc(25)
The [#57] is a special keyword for forcing the current list item counter.
Related
I know how to 'select' a range in LO (7.2.4.1) Calc BASIC ....
ThisComponent.CurrentController.ActiveSheet.getCellRangeByName("D1:H6")
But how to write a value, e.g. "1", into that range using BASIC?
myRange = ThisComponent.CurrentController.ActiveSheet.getCellRangeByName("D1:H6")
myRange.Value = 1
Gives an "property or method not found" error. But I can't find any properties or values to go after Range to allow me to do what I want. Flailing around and trying
myRange.setValue = 1
myRange.writeValue = 1
myRange.setString = "1"
and numerous other variants don't work either.
Would really appreciate the solution. Thanks.
You can edit the value of an individual cell, but not the entire range. You will have to iterate over all the cells in the range one at a time, changing the value of each of them.
Sub Set1ToD1H6
myRange = ThisComponent.CurrentController.ActiveSheet.getCellRangeByName("D1:H6")
For i = 0 To myRange.getRows().getCount()-1
For j = 0 To myRange.getColumns().getCount()-1
myRange.getCellByPosition(j, i).setValue(1)
Next j
Next i
End Sub
But since the read-write operation to a cell is comparable in time to the read-write operation to a whole range, it is preferable to use another method - to prepare data in an array and write from it to a range in one operation:
Sub Set1ToRange
myRange = ThisComponent.CurrentController.ActiveSheet.getCellRangeByName("D1:H6")
dataOfRange = myRange.getData()
For i = LBound(dataOfRange) To UBound(dataOfRange)
For j = LBound(dataOfRange(i)) To UBound(dataOfRange(i))
dataOfRange(i)(j) = 1
Next j
Next i
myRange.setData(dataOfRange)
End Sub
(For your example, this will be approximately 30 times faster, for a larger range the time winnings will be even more significant)
The .getData() and .setData() methods work on numeric range values. To work with text strings (and numbers), use .getDataArray() and .setDataArray(), for working with cell formulas use .getFormulaArray() and .setFormulaArray()
I am new to Caffe2, and I want to compose an operation like this:
Numpy way
example code
pytoch way
example code
My question is, how to compose Caffe2 operators to make the same operators like above? I have tried some compositions but still I couldn't find the right one. If anyone knows the composition, please help, I will be really appreciate for it.
There is a Gather operator in Caffe2. The main problem with this operator is that you can't set the axis (it's always 0). So, if we run this code:
model = ModelHelper(name="test")
s = np.arange(20).reshape(4, 5)
y = np.asarray([0, 1, 2])
workspace.FeedBlob('s', s.astype(np.float32))
workspace.FeedBlob('y', y.astype(np.int32))
model.net.Gather(['s', 'y'], ['out'])
workspace.RunNetOnce(model.net)
out = workspace.FetchBlob('out')
print(out)
We will get:
[[ 0. 1. 2. 3. 4.]
[ 5. 6. 7. 8. 9.]
[ 10. 11. 12. 13. 14.]]
One solution could be to reshape s to a 1D array and transform y in the same way. First of all, we have to implement an operator to transform y. In this case, we will use a numpy function called ravel_multi_index:
class RavelMultiIndexOp(object):
def forward(self, inputs, outputs):
blob_out = outputs[0]
index = np.ravel_multi_index(inputs[0].data, inputs[1].shape)
blob_out.reshape(index.shape)
blob_out.data[...] = index
Now, we can reimplement our original code:
model = ModelHelper(name="test")
s = np.arange(20).reshape(4, 5)
y = np.asarray([[0, 1, 2],[0, 1, 2]])
workspace.FeedBlob('s', s.astype(np.float32))
workspace.FeedBlob('y', y.astype(np.int32))
model.net.Python(RavelMultiIndexOp().forward)(
['y', 's'], ['y'], name='RavelMultiIndex'
)
model.net.Reshape('s', ['s_reshaped', 's_old'], shape=(-1, 1))
model.net.Gather(['s_reshaped', 'y'], ['out'])
workspace.RunNetOnce(model.net)
out = workspace.FetchBlob('out')
print(out)
Output:
[[ 0.]
[ 6.]
[ 12.]]
You may want to reshape it to (1, -1).
Consider the following example code:
spacing_Pin = transpose(-27:0.001:2);
Phi_intrp3 = interp1(P_in3,Phi_out_deg3,spacing_Pin,'spline');
size(P_in3) = size(Phi_out_deg3) = 40 1
P_in1st = P_in3 -0.76;
thetah_1st = Phi_intrp3(ismember(spacing_Pin,P_in1st));
I think thetah_1stshould now have 40 elements. It turns out, however, it only has 20. This must be, because P_in1stcan only be found 20 times in spacing_Pin. I know, you're not given P_in3, but it only has up to 2 digits after the dot. So should P_in1st. min(P_in3) = -25.9800and max(P_in3) = -0.0200. These values should be included in spacing_Pin. Why does thetah_1st have only 20 entries.
It's impossible to say without more information and your actual variable values, but I suspect that the issue is with using ismember the way that you have.
Since you are looking for floating point numbers within an array rather than integers, you should use ismembertol (ismember with a tolerance) to handle any potential floating point errors.
thetah_1st = Phi_intrp3(ismembertol(spacing_Pin, P_in1st));
I have a struct, that's a <1x1 struct>, and I'm trying to edit a field in the struct based on the values. The field is called GeoDist_Actual and the struct is called GeoDist_str. The field GeoDist_Actual is a <262792x1 double>, and this is the code I was trying to use in order to get rid of the values that are greater than 1.609344e+05.
i =1;
for i=i:size(GeoDist_str.GeoDist_Actual)
if GeoDist_str.GeoDist_Actual(i,1 > 1.609344e+05
GeoDist_str.GeoDist_Acutal(i,1) = [];
end
end
How would I append or alter this code in order to make it function like I'm aiming? I considered setting all the values to 0, but I'm going to have to go backwards from this in order to get back GPS values, doing a reverse-Vincenty(spherical) calculation, and I'd like to just completely get rid of the values that don't comply with the if condition.
If I can narrow down the question at all, let me know, and thank you for your help in advance!
Edit: I've noticed that when I changed out the section
GeoDist_str.GeoDist_Actual(i,1) = [];
for
GeoDist_str.GeoDist_Actual(i,1) = 0;
It didn't actually solve anything, instead it didn't access the field "GeoDist_Actual" within the struct "GeoDist_str", it just created a mirror field with values of 0.
Consider this example:
% a 10-by-1 vector
x = [1;2;3;4;5;6;7;8;9;10];
% remove entries where the value is less than five
x(x<5) = [];
This is called logical indexing, no need for loops.
Consider the following simple example:
A.a = 1:5;
A =
a: [1 2 3 4 5]
now delete all elements bigger 3;
A.a = A.a( ~(A.a > 3) );
A =
a: [1 2 3]
or alternatively:
A.a( A.a > 3 ) = []
For your case it's a little more bulky:
GeoDist_str.GeoDist_Actual = ...
GeoDist_str.GeoDist_Actual( ...
~(GeoDist_str.GeoDist_Actual > 1.609344e+05) )
I would like to be able to initialise a big table in matlab easily.
Say I have the bounds x, y, z = 5, 4, 3. I want to be able to make a 5x4x3 table where each element is a struct that stores count and sum. Count and sum in this struct should be 0 when initialised.
I thought it would be enough to do this:
table = []
table(5,4,3) = struct('sum', 0, 'count', 0)
And this would work for a double but not with a structure evidently.
Any ideas?
EDIT:
As another question, (bonus if you will) is there a way to force matlab to store the struct, but when you access the element (i.e., table(1, 2, 3)) get it to return the average (i.e., table(1,2,3).sum/table(1,2,3).count).
Its not vital to the question but it would certainly be cool.
You'll need just to replace the line table = [] to avoid the error, that is
clear table;
table(5,4,3) = struct('sum', 0, 'count', 0)
works fine. Note, however, that this command only initializes one field of your array, i.e., the memory allocation is incomplete. To initialize all fields of your array, you can use
table2(1:5,1:4,1:3) = struct('sum', 0, 'count', 0)
to visualize the difference, use whos, which returns
>> whos
Name Size Bytes Class Attributes
table 5x4x3 736 struct
table2 5x4x3 8288 struct
Your second question can be solved, for instance, by using anonymous functions
myMean = #(a) a.sum./a.count; %define the function
myMean(table2(2,2,2)) % access the mean in the field (2,2,2)