Skip to content
GitLab
Explore
Sign in
Primary navigation
Search or go to…
Project
2
2024-files
Manage
Activity
Members
Labels
Plan
Issues
Issue boards
Milestones
Wiki
Code
Merge requests
Repository
Branches
Commits
Tags
Repository graph
Compare revisions
Snippets
Build
Pipelines
Jobs
Pipeline schedules
Artifacts
Deploy
Releases
Package Registry
Model registry
Operate
Environments
Terraform modules
Monitor
Incidents
Analyze
Value stream analytics
Contributor analytics
CI/CD analytics
Repository analytics
Model experiments
Help
Help
Support
GitLab documentation
Compare GitLab plans
Community forum
Contribute to GitLab
Provide feedback
Terms and privacy
Keyboard shortcuts
?
Snippets
Groups
Projects
Show more breadcrumbs
MUDE
2024-files
Merge requests
!12
Upload New File
Code
Review changes
Check out branch
Download
Patches
Plain diff
Merged
Upload New File
D.J.vanderHoorn-main-patch-21244
into
main
Overview
0
Commits
1
Pipelines
0
Changes
1
Merged
Daniel Hoorn
requested to merge
D.J.vanderHoorn-main-patch-21244
into
main
5 months ago
Overview
0
Commits
1
Pipelines
0
Changes
1
Expand
0
0
Merge request reports
Compare
main
main (base)
and
latest version
latest version
4edec8ae
1 commit,
5 months ago
1 file
+
48
−
0
Inline
Compare changes
Side-by-side
Inline
Show whitespace changes
Show one file at a time
content/Week_1_6/PA/A_mistake_that_shows_no_errors.py
0 → 100644
+
48
−
0
Options
## IMPORTS ##
import
numpy
as
np
import
matplotlib.pylab
as
plt
import
pandas
as
pd
import
os
## FILE PATHS ##
file_path
=
os
.
path
.
join
(
os
.
path
.
dirname
(
__file__
),
'
justIce.csv
'
)
data
=
pd
.
read_csv
(
filepath_or_buffer
=
file_path
,
index_col
=
0
)
data
.
index
=
pd
.
to_datetime
(
data
.
index
,
format
=
"
%Y-%m-%d
"
)
plt
.
figure
(
figsize
=
(
15
,
4
))
plt
.
scatter
(
data
.
index
,
data
,
color
=
'
green
'
,
marker
=
'
x
'
)
plt
.
xlabel
(
'
Year
'
)
plt
.
ylabel
(
'
Ice thickness [cm]
'
)
plt
.
grid
()
## DATA ANALYSIS ##
data_2021
=
data
.
loc
[
'
2021
'
]
h_ice
=
(
data_2021
.
to_numpy
()).
ravel
()
t_days
=
((
data_2021
.
index
-
data_2021
.
index
[
0
]).
days
).
to_numpy
()
dh_dt_FD
=
(
h_ice
[
1
:]
-
h_ice
[:
-
1
])
/
(
t_days
[
1
:]
-
t_days
[:
-
1
])
dh_dt_BD
=
(
h_ice
[
1
:]
-
h_ice
[:
-
1
])
/
(
t_days
[
1
:]
-
t_days
[:
-
1
])
dh_dt_CD
=
[(
h_ice
[
i
+
1
]
-
h_ice
[
i
-
1
])
/
(
t_days
[
i
+
1
]
-
t_days
[
i
-
1
])
for
i
in
range
(
0
,
len
(
t_days
)
-
1
)]
## PLOTTING ##
fig
,
ax1
=
plt
.
subplots
(
figsize
=
(
15
,
4
))
ax1
.
scatter
(
t_days
[:
-
1
],
dh_dt_FD
,
color
=
'
blue
'
,
marker
=
'
o
'
,
label
=
'
dh_dt_FE Forward Difference
'
)
ax1
.
scatter
(
t_days
[
1
:],
dh_dt_BD
,
color
=
'
red
'
,
marker
=
'
o
'
,
label
=
'
dh_dt_BE Backward Difference
'
)
ax1
.
scatter
((
t_days
[
1
:]
+
t_days
[:
-
1
])
/
2
,
dh_dt_CD
,
color
=
'
purple
'
,
marker
=
'
o
'
,
label
=
'
dh_dt_CD Central Difference
'
)
ax1
.
set_xlabel
(
'
Days
'
)
ax1
.
set_ylabel
(
'
Growth Rate [cm/day]
'
,
color
=
'
blue
'
)
ax1
.
tick_params
(
axis
=
'
y
'
,
labelcolor
=
'
blue
'
)
ax1
.
grid
()
ax2
=
ax1
.
twinx
()
ax2
.
scatter
(
t_days
,
h_ice
,
color
=
'
green
'
,
marker
=
'
x
'
,
label
=
'
h_ice Measurements
'
)
ax2
.
set_ylabel
(
'
Ice thickness [cm]
'
,
color
=
'
green
'
)
ax2
.
tick_params
(
axis
=
'
y
'
,
labelcolor
=
'
green
'
)
handles
,
labels
=
ax1
.
get_legend_handles_labels
()
handles2
,
labels2
=
ax2
.
get_legend_handles_labels
()
ax1
.
legend
(
handles
+
handles2
,
labels
+
labels2
,
loc
=
'
upper left
'
)
plt
.
show
()
\ No newline at end of file
Loading