Skip to content

Instantly share code, notes, and snippets.

@arokem
Created January 29, 2016 21:04
Show Gist options
  • Save arokem/06717f7b7336429be38f to your computer and use it in GitHub Desktop.
Save arokem/06717f7b7336429be38f to your computer and use it in GitHub Desktop.
Display the source blob
Display the rendered blob
Raw
{
"cells": [
{
"cell_type": "code",
"execution_count": 1,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"import numpy as np\n",
"import matplotlib.pyplot as plt\n",
"%matplotlib inline"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"import dipy.core.gradients as dpg\n",
"import dipy.data as dpd\n",
"import dipy.reconst.dti as dti\n",
"import nibabel as nib"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {
"collapsed": false
},
"outputs": [],
"source": [
"%load_ext memory_profiler"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Dataset is already in place. If you want to fetch it again please first remove the folder /Users/arokem/.dipy/cenir_multib \n"
]
}
],
"source": [
"img, gtab = dpd.read_cenir_multib()"
]
},
{
"cell_type": "code",
"execution_count": 5,
"metadata": {
"collapsed": false
},
"outputs": [],
"source": [
"data = img.get_data()"
]
},
{
"cell_type": "code",
"execution_count": 6,
"metadata": {
"collapsed": false
},
"outputs": [
{
"data": {
"text/plain": [
"(104, 104, 72, 652)"
]
},
"execution_count": 6,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"data.shape"
]
},
{
"cell_type": "code",
"execution_count": 7,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"peak memory: 5784.47 MiB, increment: 2755.86 MiB\n",
"peak memory: 5405.55 MiB, increment: 4303.24 MiB\n",
"peak memory: 6594.60 MiB, increment: 6446.70 MiB\n",
"peak memory: 6220.90 MiB, increment: 4129.81 MiB\n",
"peak memory: 6123.64 MiB, increment: 5464.41 MiB\n"
]
}
],
"source": [
"for step in [1, 10, 100, 1000, 10000]:\n",
" tenmodel = dti.TensorModel(gtab, step=step)\n",
" %memit tenfit = tenmodel.fit(data)"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 2",
"language": "python",
"name": "python2"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 2
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython2",
"version": "2.7.11"
}
},
"nbformat": 4,
"nbformat_minor": 0
}
@samuelstjean
Copy link

It happens in tenfit.predict actually, the fit does not seem to be problematic

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment